chore: v4.12.0

* refactor: allow injecting existing PublicClient into SemaphoreViem

* fix: remove comment

.github/pull_request_template.md

@@ -29,10 +29,12 @@
 
 <!-- Please check if the PR fulfills these requirements. -->
 
--   [ ] My code follows the style guidelines of this project
 -   [ ] I have performed a self-review of my code
 -   [ ] I have commented my code, particularly in hard-to-understand areas
 -   [ ] My changes generate no new warnings
 -   [ ] I have run `yarn format` and `yarn lint` without getting any errors
 -   [ ] I have added tests that prove my fix is effective or that my feature works
 -   [ ] New and existing unit tests pass locally with my changes
+
+> [!IMPORTANT]
+> We do not accept pull requests for minor grammatical fixes (e.g., correcting typos, rewording sentences) or for fixing broken links, unless they significantly improve clarity or functionality. These contributions, while appreciated, are not a priority for merging. If you notice any of these issues, please create a [GitHub Issue](https://github.com/semaphore-protocol/semaphore/issues/new?template=BLANK_ISSUE) to report them so they can be properly tracked and addressed.

.github/workflows/production.yml

@@ -34,7 +34,7 @@ jobs:
               run: yarn lint
 
     test-subgraph:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-22.04 # Context: https://github.com/graphprotocol/graph-tooling/issues/1546#issuecomment-2589680195
 
         steps:
             - uses: actions/checkout@v4
@@ -83,7 +83,7 @@ jobs:
                   sudo apt-get update && sudo apt-get install -y wget nlohmann-json3-dev libgmp-dev nasm g++ build-essential
 
             - name: Setup Circom
-              run: wget https://github.com/iden3/circom/releases/latest/download/circom-linux-amd64 && sudo mv ./circom-linux-amd64 /usr/bin/circom && sudo chmod +x /usr/bin/circom
+              run: sudo wget https://github.com/iden3/circom/releases/download/v2.1.9/circom-linux-amd64 -O /usr/bin/circom && sudo chmod +x /usr/bin/circom
 
             - name: Install dependencies
               run: yarn

.github/workflows/pull-requests.yml

@@ -75,7 +75,7 @@ jobs:
               run: yarn run eslint ${{ steps.changed-files.outputs.to_lint_all_changed_files }} --ext .cjs,.js,.jsx,.ts,.tsx
 
     test:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-22.04 # Context: https://github.com/graphprotocol/graph-tooling/issues/1546#issuecomment-2589680195
 
         steps:
             - uses: actions/checkout@v4
@@ -111,7 +111,7 @@ jobs:
               run: |
                   sudo rm /etc/apt/sources.list.d/microsoft-prod.list
                   sudo apt-get update && sudo apt-get install -y wget nlohmann-json3-dev libgmp-dev nasm g++ build-essential
-                  wget https://github.com/iden3/circom/releases/latest/download/circom-linux-amd64 && sudo mv ./circom-linux-amd64 /usr/bin/circom && sudo chmod +x /usr/bin/circom
+                  sudo wget https://github.com/iden3/circom/releases/download/v2.1.9/circom-linux-amd64 -O /usr/bin/circom && sudo chmod +x /usr/bin/circom
                   yarn workspace @semaphore-protocol/group build
                   yarn workspace @semaphore-protocol/identity build
                   yarn workspace @semaphore-protocol/proof build

.github/workflows/release.yml

@@ -4,6 +4,7 @@ permissions:
     contents: write
 
 on:
+    workflow_dispatch:
     push:
         tags:
             - "v*"
@@ -17,6 +18,16 @@ jobs:
               with:
                   fetch-depth: 0
 
+            - name: Install soldeer
+              uses: taiki-e/install-action@v2
+              with:
+                  tool: soldeer
+            - name: Store soldeer login credential
+              env:
+                  SOLDEER_TOKEN: ${{ secrets.SOLDEER_TOKEN }}
+              run: |
+                  echo "$SOLDEER_TOKEN" > "$GITHUB_WORKSPACE"/soldeer_login
+
             - name: Install Node.js
               uses: actions/setup-node@v4
               with:
@@ -37,6 +48,7 @@ jobs:
               run: yarn version:publish
               env:
                   NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+                  SOLDEER_LOGIN_FILE: ${{ github.workspace }}/soldeer_login
 
             - run: yarn version:release
               env:

CONTRIBUTING.md

@@ -22,7 +22,7 @@ Pull requests are great if you want to add a feature or fix a bug. Here's a quic
 
 3. Add a test for your change. Only refactoring and documentation changes require no new tests.
 
-4. Make sure to check out the [Style Guide](/CONTRIBUTING#style-guide) and ensure that your code complies with the rules.
+4. Make sure to check out the [Style Guide](/CONTRIBUTING.md#style-guide) and ensure that your code complies with the rules.
 
 5. Make the test pass.
 
@@ -30,6 +30,9 @@ Pull requests are great if you want to add a feature or fix a bug. Here's a quic
 
 7. Push to your fork and submit a pull request on our `main` branch. Please provide us with some explanation of why you made the changes you made. For new features make sure to explain a standard use case to us.
 
+> [!IMPORTANT]
+> We do not accept pull requests for minor grammatical fixes (e.g., correcting typos, rewording sentences) or for fixing broken links, unless they significantly improve clarity or functionality. These contributions, while appreciated, are not a priority for merging. If you notice any of these issues, please create a [GitHub Issue](https://github.com/semaphore-protocol/semaphore/issues/new?template=BLANK_ISSUE) to report them so they can be properly tracked and addressed.
+
 ## CI (Github Actions) Tests
 
 We use GitHub Actions to test each PR before it is merged.
@@ -42,7 +45,7 @@ When you submit your PR (or later change that code), a CI build will automatical
 
 We always use ESLint and Prettier. To check that your code follows the rules, simply run the npm script `yarn lint`.
 
-### Commits rules
+### Commit rules
 
 For commits it is recommended to use [Conventional Commits](https://www.conventionalcommits.org).
 

README.md

@@ -264,7 +264,7 @@ The core of the Semaphore protocol is in the [circuit logic](/packages/circuits/
                 </a>
             </td>
         </tr>
-    <tbody>
+    </tbody>
 </table>
 
 ## 🛠 Install
@@ -275,12 +275,18 @@ Clone this repository:
 git clone https://github.com/semaphore-protocol/semaphore.git
 ```
 
-And install the dependencies:
+Install the dependencies:
 
 ```bash
 cd semaphore && yarn
 ```
 
+And build the repository:
+
+```bash
+yarn build
+```
+
 ## 📜 Usage
 
 Copy the `.env.example` file as `.env`:
@@ -367,12 +373,28 @@ The output will be placed on the `docs` folder.
 
 ### Releases
 
-Bump a new version with:
+Steps:
+
+1. Bump a new version with:
 
 ```bash
 yarn version:bump <version>
 # e.g. yarn version:bump 2.0.0
 ```
 
-It will create a commit and a git tag that will need to be pushed on the main branch. A workflow will be triggered and will
-publish the Semaphore packages on [npm](https://www.npmjs.com/) and release a new version on Github with its changelogs automatically.
+This step creates a commit and a git tag.
+
+2. Push the changes to main:
+
+```bash
+git push origin main
+```
+
+3. Push the new git tag:
+
+```bash
+git push origin <version>
+# e.g. git push origin v2.0.0
+```
+
+After pushing the new git tag, a workflow will be triggered to publish the Semaphore packages on [npm](https://www.npmjs.com/) and release a new version on GitHub with its changelogs automatically.

apps/docs/i18n/en/code.json

@@ -390,8 +390,5 @@
     },
     "footer.right.connect.link2": {
         "message": "X (Twitter)"
-    },
-    "footer.copyright": {
-        "message": "Copyright © 2024 Ethereum Foundation"
     }
 }

apps/docs/i18n/es/code.json

@@ -42,7 +42,7 @@
         "message": "Valores públicos"
     },
     "section.identities.box2.description": {
-        "message": "Semaphore utiliza la función hash Poseidon para crear el identtity commitment a partir de los valores privados. Los identity commitments se pueden compartir públicamente, de forma similar a las direcciones Ethereum."
+        "message": "Semaphore utiliza la función hash Poseidon para crear el identity commitment a partir de los valores privados. Los identity commitments se pueden compartir públicamente, de forma similar a las direcciones Ethereum."
     },
     "section.identities.box3.title": {
         "message": "Generar identidades"
@@ -390,8 +390,5 @@
     },
     "footer.right.connect.link2": {
         "message": "X (Twitter)"
-    },
-    "footer.copyright": {
-        "message": "Copyright © 2024 Ethereum Foundation"
     }
 }

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V1/audit.md

@@ -12,6 +12,6 @@ as well as relevant circuits in
 which the Semaphore zk-SNARK uses.
 
 The summary of the audit results can be found
-[here](https://github.com/appliedzkp/semaphore/tree/master/audit). After three
+[here](https://github.com/semaphore-protocol/semaphore/blob/main/apps/docs/versioned_docs/version-V1/audit.md). After three
 rounds of fixes, all security and performance issues were fixed, and the few
 remaining issues are minor and do not affect security.

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V2/quick-setup.md

@@ -58,7 +58,7 @@ Hardhat includes the Hardhat Network, a local Ethereum network for development.
 
 ## Install Semaphore packages
 
-Semaphore provides contracts, JavaScript libraries and an Hardhat plugin for developers building zero-knowledge applications.
+Semaphore provides contracts, JavaScript libraries and a Hardhat plugin for developers building zero-knowledge applications.
 
 -   `@semaphore-protocol/contracts` provides contracts to manage groups and verify Semaphore proofs on-chain.
 -   JavaScript libraries help developers build zero-knowledge applications.

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V3/technical-reference/contracts.md

@@ -19,7 +19,7 @@ Para utilizar los contratos e interfaces Semaphore en su proyecto, instale el pa
 
 Semaphore ofrece los siguientes contratos base:
 
--   [`SemaphoreVerifier.sol`](https://github.com/semaphore-protocol/semaphore/blob/main/packages/contracts/base/SemaphoreVerifier.sol): contiene una función para verificar pruebas Semaphore;
+-   [`SemaphoreVerifier.sol`](https://github.com/semaphore-protocol/semaphore/blob/v3.15.2/packages/contracts/contracts/base/SemaphoreVerifier.sol): contiene una función para verificar pruebas Semaphore;
 -   [`SemaphoreGroups.sol`](https://github.com/semaphore-protocol/semaphore/blob/main/packages/contracts/base/SemaphoreGroups.sol): contiene las funciones para crear grupos y añadir/remover/actualizar miembros.
 
 Los contratos base están relacionados de forma muy cercana al protocolo.

apps/docs/package.json

@@ -16,10 +16,10 @@
         "format:write": "remark ./**/*.mdx --output"
     },
     "dependencies": {
-        "@docusaurus/core": "3.1.1",
-        "@docusaurus/preset-classic": "3.1.1",
+        "@docusaurus/core": "3.5.2",
+        "@docusaurus/preset-classic": "3.5.2",
         "@mdx-js/react": "^3.0.0",
-        "@semaphore-protocol/utils": "4.1.0",
+        "@semaphore-protocol/utils": "4.12.0",
         "@svgr/webpack": "^5.5.0",
         "clsx": "^1.2.1",
         "docusaurus-plugin-sass": "^0.2.5",
@@ -31,8 +31,8 @@
         "url-loader": "^4.1.1"
     },
     "devDependencies": {
-        "@docusaurus/module-type-aliases": "3.1.1",
-        "@docusaurus/tsconfig": "3.1.1",
+        "@docusaurus/module-type-aliases": "3.5.2",
+        "@docusaurus/tsconfig": "3.5.2",
         "@types/react": "^18.2.29",
         "remark-cli": "^12.0.0",
         "remark-frontmatter": "^5.0.0",

apps/docs/src/theme/Footer/index.tsx

@@ -54,11 +54,7 @@ function Footer() {
                 <hr />
 
                 <div>
-                    <p>
-                        {translate({
-                            id: "footer.copyright"
-                        })}
-                    </p>
+                    <p>Copyright © {new Date().getFullYear()} Ethereum Foundation</p>
 
                     <Logo
                         style={{ marginRight: -8 }}

apps/docs/versioned_docs/version-V1/audit.md

@@ -12,6 +12,6 @@ as well as relevant circuits in
 which the Semaphore zk-SNARK uses.
 
 The summary of the audit results can be found
-[here](https://github.com/appliedzkp/semaphore/tree/master/audit). After three
+[here](https://github.com/semaphore-protocol/semaphore/blob/main/apps/docs/versioned_docs/version-V1/audit.md). After three
 rounds of fixes, all security and performance issues were fixed, and the few
 remaining issues are minor and do not affect security.

apps/docs/versioned_docs/version-V1/howitworks.md

@@ -121,7 +121,7 @@ authenticity of the signal and prevents front-running attacks.
 
 ## Cryptographic primitives
 
-Semaphore uses MiMC for the Merkle tree, Pedersen commmitments for the identity
+Semaphore uses MiMC for the Merkle tree, Pedersen commitments for the identity
 commitments, Blake2 for the nullifiers hash, and EdDSA for the signature.
 
 MiMC is a relatively new hash function. We use the recommended MiMC

apps/docs/versioned_docs/version-V1/libsemaphore.md

@@ -145,7 +145,7 @@ Returns `false` otherwise.
 
 **`signMsg(privKey: EddsaPrivateKey, msg: SnarkBigInt): EdDSAMiMcSpongeSignature)`**
 
-Encapsualtes `circomlib.eddsa.signMiMCSponge` to sign a message `msg` using private key `privKey`.
+Encapsulates `circomlib.eddsa.signMiMCSponge` to sign a message `msg` using private key `privKey`.
 
 **`verifySignature(msg: SnarkBigInt, signature: EdDSAMiMcSpongeSignature, pubKey: EddsaPublicKey)`: boolean**
 
@@ -190,7 +190,7 @@ const genWitness = async (
 -   `circuit` is the output of `genCircuit()`.
 -   `identity` is the `Identity` whose identity commitment you want to prove is
     in the set of registered identities.
--   `idCommitments` is an array of registered identity commmitments; i.e. the
+-   `idCommitments` is an array of registered identity commitments; i.e. the
     leaves of the tree.
 -   `treeDepth` is the number of levels which the Merkle tree used has
 -   `externalNullifier` is the current external nullifier
@@ -212,7 +212,7 @@ Only `witness` is essential to generate the proof; the other data is only
 useful for debugging and additional off-chain checks, such as verifying the
 signature and the Merkle tree root.
 
-**`formatForVerifierContract = (proof: SnarkProof, publicSignals: SnarkPublicSignals`**
+**`formatForVerifierContract = (proof: SnarkProof, publicSignals: SnarkPublicSignals)`**
 
 Converts the data in `proof` and `publicSignals` to strings and rearranges
 elements of `proof.pi_b` so that `snarkjs`'s `verifier.sol` will accept it.

apps/docs/versioned_docs/version-V1/usage.md

@@ -26,7 +26,7 @@ With the Client contract as the owner of the Semaphore contract, the Client
 contract may call owner-only Semaphore functions such as
 `addExternalNullifier()`.
 
-## Add, deactivate, or reactivate external nullifiiers
+## Add, deactivate, or reactivate external nullifiers
 
 These functions add, deactivate, and reactivate an external nullifier respectively.
 As each identity can only signal once to an external nullifier, and as a signal

apps/docs/versioned_docs/version-V1/what-is-semaphore.md

@@ -55,7 +55,7 @@ In sum, Semaphore provides the ability to:
 ### External nullifiers
 
 Think of an external nullifier as a voting booth where each user may only cast
-one vote. If they try to cast a second vote a the same booth, that vote is
+one vote. If they try to cast a second vote at the same booth, that vote is
 invalid.
 
 An external nullifier is any 29-byte value. Semaphore always starts with one
@@ -89,7 +89,7 @@ An anonymous voting app would be configured differently:
 | ----------------------------------- | ------------------------ |
 | The hash of the respondent's answer | The hash of the question |
 
-This allows any user to vote with an arbitary response (e.g. yes, no, or maybe)
+This allows any user to vote with an arbitrary response (e.g. yes, no, or maybe)
 to any question. The user, however, can only vote once per question.
 
 ## About the code

apps/docs/versioned_docs/version-V2/subgraph.md

@@ -9,7 +9,7 @@ Site owners publish _subgraphs_ that expose site data for anyone to query.
 Semaphore's subgraph allows you to retrieve data from the [`Semaphore.sol`](https://github.com/semaphore-protocol/semaphore/tree/v2.6.1/packages/contracts/Semaphore.sol) smart contract.
 
 :::tip
-The Graph protocol uses the [GraphQL](https://graphql.org/) query lanaguage. For examples, see the [GraphQL API documentation](https://thegraph.com/docs/developer/graphql-api). Visit the [subgraph repository](https://github.com/semaphore-protocol/subgraph) to see the list of Semaphore subgraphs.
+The Graph protocol uses the [GraphQL](https://graphql.org/) query language. For examples, see the [GraphQL API documentation](https://thegraph.com/docs/developer/graphql-api). Visit the [subgraph repository](https://github.com/semaphore-protocol/subgraph) to see the list of Semaphore subgraphs.
 :::
 
 ## Schema

apps/docs/versioned_docs/version-V3/glossary.md

@@ -37,7 +37,7 @@ For more information, see [Merkle tree in Wikipedia](https://en.wikipedia.org/wi
 
 ## Nullifier
 
-A value used to prevent double entry or double signalling.
+A value used to prevent double entry or double signaling.
 
 See [Circuit nullifier hash](/V3/technical-reference/circuits/#nullifier-hash).
 

apps/docs/versioned_docs/version-V4/benchmarks.md

@@ -0,0 +1,131 @@
+---
+sidebar_position: 8
+---
+
+# Benchmarks
+
+Semaphore v4 introduces new features and performance improvements. Detailed changes are available in the [release changelog](https://github.com/semaphore-protocol/semaphore/releases/tag/v4.0.0).
+
+The primary changes in benchmark values are driven by the two major protocol updates:
+
+-   New [Identity schema](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity).
+
+-   [LeanIMT](https://github.com/privacy-scaling-explorations/zk-kit/tree/main/packages/lean-imt): New optimized IMT.
+
+## New Identity schema
+
+Semaphore v4 includes a new schema for the identities allowing the creation and verification of signatures.
+
+Although the new Identity package is slightly slower than the one in Semaphore v3 (by just a few milliseconds), the trade-off is minimal considering the included functionality.
+
+The new identity schema adds additional constraints to the Semaphore v4 circuit; however, this does not negatively impact overall performance of the protocol.
+
+## LeanIMT
+
+Semaphore v4 uses the LeanIMT data structure for group operations, an improvement over the IMT used in v3.
+
+For further details, see the [LeanIMT paper](https://github.com/privacy-scaling-explorations/zk-kit/tree/main/papers/leanimt).
+
+The LeanIMT offers dynamic depth, resulting in faster and more cost-effective group operations, across Node.js, browser and smart contracts.
+
+Semaphore v4 support tree depths from 1 to 32, while v3 supports depths from 16 to 32, both for proof generation and verification.
+
+## System Specifications and Software environment
+
+All the benchmarks were run in an environment with these properties:
+
+**System Specifications**
+
+Computer: MacBook Pro
+
+Chip: Apple M2 Pro
+
+Memory (RAM): 16 GB
+
+Operating System: macOS Sequoia version 15.0.1
+
+**Software environment**
+
+Node.js version: 20.18.0
+
+Browser: Google Chrome Version 130.0.6723.92 (Official Build) (arm64)
+
+## Running the benchmarks
+
+### Javascript and Circom
+
+GitHub repository to the run Node.js, browser and Circom benchmarks: https://github.com/vplasencia/semaphore-benchmarks
+
+### Solidity
+
+GitHub repository to run the Solidity benchmarks: https://github.com/semaphore-protocol/semaphore
+
+## Node.js benchmarks
+
+### Identities
+
+![Identities](../../assets/img-benchmarks/node/identity-node-benchmarks.png)
+
+### Create Group
+
+Create group, either empty or with initial members.
+
+![Create Group](../../assets/img-benchmarks/node/create-group-node-benchmarks.png)
+
+### Add Member
+
+Add a member to groups with different sizes.
+
+![Add Member](../../assets/img-benchmarks/node/add-member-node-benchmarks.png)
+
+### Generate Proof
+
+Generate a proof using groups with different numbers of members.
+
+![Generate Proof](../../assets/img-benchmarks/node/generate-proof-node-benchmarks.png)
+
+### Verify Proof
+
+Verify a proof using groups with different numbers of members.
+
+![Verify Proof](../../assets/img-benchmarks/node/verify-proof-node-benchmarks.png)
+
+## Browser benchmarks
+
+Main functions used in the browser.
+
+![Browser benchmarks](../../assets/img-benchmarks/browser/browser-benchmarks.png)
+
+## Circuit benchmarks
+
+### Semaphore V3
+
+<img
+src={require('../../assets/img-benchmarks/circuits/semaphore-v3-circuits-benchmarks.png').default}
+alt="Circuit benchmarks Semaphore v3"
+style={{ width: '300px', height: 'auto' }}
+/>
+
+### Semaphore V4
+
+<img
+src={require('../../assets/img-benchmarks/circuits/semaphore-v4-circuits-benchmarks.png').default}
+alt="Circuit benchmarks Semaphore v4"
+style={{ width: '300px', height: 'auto' }}
+/>
+
+## Contracts
+
+<img
+src={require('../../assets/img-benchmarks/contracts/contract-benchmarks.png').default}
+alt="Contract Benchmarks"
+style={{ width: '590px', height: 'auto' }}
+/>
+
+### Semaphore V3 gas report
+
+![Contracts benchmarks Semaphore v3](../../assets/img-benchmarks/contracts/semaphore-v3-contracts-benchmarks.png)
+
+### Semaphore V4 gas report
+
+![Contracts benchmarks Semaphore v4](../../assets/img-benchmarks/contracts/semaphore-v4-contracts-benchmarks.png)

apps/docs/versioned_docs/version-V4/credits.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 12
+sidebar_position: 13
 ---
 
 # Credits

apps/docs/versioned_docs/version-V4/faq.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 11
+sidebar_position: 12
 ---
 
 # FAQ

apps/docs/versioned_docs/version-V4/glossary.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 8
+sidebar_position: 9
 ---
 
 # Glossary
@@ -14,7 +14,7 @@ The public [Semaphore identity](#identity) value used in [Semaphore groups](#gro
 
 ## Group
 
-A group is a [Merkle tree](#merkle-tree) in which each leaf is an [identity commitment](#identity-commitment) for a user. Semaphore uses the [LeanIMT](https://zkkit.pse.dev/classes/_zk_kit_imt.LeanIMT.html) implementation, which is an optimized binary incremental Merkle tree. The tree nodes are calculated using [Poseidon](https://www.poseidon-hash.info).
+A group is a [Merkle tree](#merkle-tree) in which each leaf is an [identity commitment](#identity-commitment) for a user. Semaphore uses the [LeanIMT](https://zkkit.pse.dev/classes/_zk_kit_lean_imt.LeanIMT.html) implementation, which is an optimized binary incremental Merkle tree. The tree nodes are calculated using [Poseidon](https://www.poseidon-hash.info).
 
 ## Merkle tree
 

apps/docs/versioned_docs/version-V4/guides/identities.mdx

@@ -20,7 +20,7 @@ To prevent fraud, the owner should keep their private key secret.
 
 ## Install package
 
-In your code, use the [`@semaphore-protocol/identity`](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity) package to manage Semaphore identites.
+In your code, use the [`@semaphore-protocol/identity`](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity) package to manage Semaphore identities.
 
 <Tabs
   defaultValue="npm"
@@ -87,6 +87,11 @@ You may choose to delegate such functionality to existing wallets such as Metama
 3. The user can now recreate their Semaphore identity whenever they want by signing the same message with their Ethereum account in Metamask.
    :::
 
+:::warning Privacy risk
+If a user signs the **same message** on multiple websites using MetaMask, all those websites will be able to **generate the same Semaphore identity**. This undermines anonymity and may allow third parties to **link identities across platforms** or even **gain control over a user's identity**.\
+To mitigate this, encourage users to sign **unique messages per application** or implement safeguards that detect and warn about reuse.
+:::
+
 ## Sign and verify messages
 
 Semaphore V4 uses asymmetric cryptography and in particular EdDSA to generate the identity keys. It is therefore also possible to sign messages and verify their signatures.
@@ -109,3 +114,33 @@ After a message is signed, anyone can verify the signature using the message its
 // Static method.
 Identity.verifySignature(message, signature, identity1.publicKey)
 ```
+
+## Export and import an identity
+
+A Semaphore Identity can be exported and then imported later for reuse.
+
+### Export an identity
+
+Returns the private key encoded as a base64 string.
+
+```ts
+import { Identity } from "@semaphore-protocol/identity"
+
+const identity = new Identity()
+
+const privateKey = identity.export()
+```
+
+### Import an identity
+
+Returns a Semaphore identity based on a private key encoded as a base64 string.
+
+```ts
+import { Identity } from "@semaphore-protocol/identity"
+
+const identity = new Identity()
+
+const privateKey = identity.export()
+
+const identity2 = Identity.import(privateKey)
+```

apps/docs/versioned_docs/version-V4/guides/proofs.mdx

@@ -79,7 +79,7 @@ const group = new Group(members)
 
 Each proof requires a [scope](/glossary#scope), on which each user may only generate one valid proof. The scope, together with the user's private key, is used to generate the nullifier, which is the value you can actually use to check whether a proof with that scope has already been generated by that user. In a voting application where double-voting must be prevented, the scope could be the ballot id, or the Merkle root of the group.
 
-### 4. Generate the anomymous message
+### 4. Generate the anonymous message
 
 Finally, you can generate the proof with the anonymous message using the `generateProof` function. For example:
 

apps/docs/versioned_docs/version-V4/resources.mdx

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 9
+sidebar_position: 10
 ---
 
 import Articles from '@site/src/components/Articles';

apps/docs/versioned_docs/version-V4/troubleshooting.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 10
+sidebar_position: 11
 ---
 
 import Tabs from "@theme/Tabs"

apps/docs/versioned_docs/version-V4/what-is-semaphore.md

@@ -11,6 +11,8 @@ slug: /
 Additionally, it provides a simple mechanism to prevent double-signaling.
 Use cases include private voting, whistleblowing, anonymous DAOs and mixers.
 
+For in-depth technical details about Semaphore, refer to the [Semaphore V4 Specification](https://github.com/zkspecs/zkspecs/blob/main/specs/3/README.md).
+
 ## Features
 
 With Semaphore, you can allow your users to do the following:
@@ -33,7 +35,7 @@ Semaphore is designed to be a simple and generic _privacy layer_ for decentraliz
 
 ## About the code
 
-The core of the protocol is the [circuit logic](https://github.com/semaphore-protocol/semaphore/tree/main/packages/circuits/semaphore.circom).
+The core of the protocol is the [circuit logic](https://github.com/semaphore-protocol/semaphore/tree/main/packages/circuits/src/semaphore.circom).
 In addition to circuits,
 Semaphore provides [Solidity contracts](https://github.com/semaphore-protocol/semaphore/tree/main/packages/contracts)
 and [JavaScript libraries](https://github.com/semaphore-protocol/semaphore/tree/main#-packages) that allow developers to generate zero-knowledge proofs and verify them with minimal effort.

apps/subgraph/README.md

@@ -42,17 +42,23 @@
 
 ## Networks
 
-You can access any subgraph supported by Semaphore with the following URL: https://api.studio.thegraph.com/query/14377/semaphore-<network-name>/v4.0.0-beta.17.
+You can access any subgraph supported by Semaphore with the following URL: `https://api.studio.thegraph.com/query/14377/semaphore-<network-name>/v4.2.0`.
 
 Supported networks:
 
 -   `sepolia`
+-   `ethereum`
 -   `optimism`
 -   `optimism-sepolia`
--   `arbitrum-one`
+-   `arbitrum`
 -   `arbitrum-sepolia`
 -   `matic`
--   `polygon-amoy`
+-   `matic-amoy`
+-   `base-sepolia`
+-   `base`
+-   `linea-sepolia`
+-   `linea`
+-   `scroll-sepolia`
 
 ## 🛠 Install
 

apps/subgraph/package.json

@@ -9,8 +9,8 @@
         "codegen:sepolia": "yarn codegen sepolia",
         "build": "graph build",
         "build:sepolia": "yarn codegen:sepolia && graph build",
-        "auth": "graph auth --studio",
-        "deploy": "graph deploy --studio ${0}",
+        "auth": "graph auth",
+        "deploy": "graph deploy ${0}",
         "start-ipfs": "node scripts/start-ipfs.js",
         "create-local": "graph create --node http://localhost:8020/ semaphore",
         "remove-local": "graph remove --node http://localhost:8020/ semaphore",
@@ -18,13 +18,13 @@
         "test": "graph test Semaphore -v 0.5.0"
     },
     "dependencies": {
-        "@graphprotocol/graph-cli": "0.78.0",
-        "@graphprotocol/graph-ts": "0.35.1",
-        "@semaphore-protocol/utils": "4.1.0"
+        "@graphprotocol/graph-cli": "0.95.0",
+        "@graphprotocol/graph-ts": "0.37.0",
+        "@semaphore-protocol/utils": "workspace:packages/utils"
     },
     "devDependencies": {
-        "@types/mustache": "^4.2.2",
-        "matchstick-as": "0.5.0",
+        "@types/mustache": "^4.2.5",
+        "matchstick-as": "0.6.0",
         "mustache": "^4.2.0"
     }
 }

apps/subgraph/scripts/generate-subgraph.js

@@ -15,6 +15,10 @@ function mapNetwork(n) {
         return "arbitrum-one"
     }
 
+    if (n === "ethereum") {
+        return "mainnet"
+    }
+
     return network
 }
 

apps/website/src/app/build/page.tsx

@@ -26,7 +26,7 @@ export default function Build() {
             url: "https://github.com/semaphore-protocol/boilerplate",
             details: [
                 "Begin your projects with a ready-to-use example template",
-                "Create identity, join group, send anonmous feedback",
+                "Create identity, join group, send anonymous feedback",
                 "Easily modify to align with specific project goals"
             ]
         },
@@ -133,7 +133,7 @@ export default function Build() {
                     </VStack>
                 </Flex>
 
-                <Box position="relative" w={{ base: "full", xl: "727px" }} h="630" overflow="hidden">
+                <Box position="relative" w={{ base: "full", xl: "727px" }} h="630px" overflow="hidden">
                     <Image
                         src="https://semaphore.cedoor.dev/flower-shadow.jpg"
                         alt=""

apps/website/src/app/page.tsx

@@ -225,7 +225,7 @@ export default function Home() {
             <VStack mb="32" spacing="32">
                 <VStack w="full" maxW="1110px">
                     <Heading fontSize={{ base: "30px", md: "44px" }} pb="90px">
-                        2024 Roadmap
+                        2024-2025 Roadmap
                     </Heading>
 
                     <HStack display={{ base: "none", md: "flex" }} w="full" mt="60px">
@@ -287,7 +287,7 @@ export default function Home() {
                                 Upcoming Events
                             </Heading>
 
-                            <VStack align="left" spacing="10" maxH="600" overflowY="auto">
+                            <VStack align="left" spacing="10" maxH="600px" overflowY="auto">
                                 {events.map((event) => (
                                     <Link href={event.link} key={event.name} isExternal>
                                         <VStack align="left">

apps/website/src/components/Footer.tsx

@@ -88,7 +88,7 @@ export default function Footer() {
                     </Link>
 
                     <Text fontSize={{ base: "12px", md: "14px" }} color="text.500" pt="2">
-                        Copyright © 2024 Ethereum Foundation
+                        Copyright © {new Date().getFullYear()} Ethereum Foundation
                     </Text>
                 </VStack>
             </VStack>

apps/website/src/data/articles.json

@@ -40,5 +40,19 @@
         "date": "2024-01-01",
         "authors": ["Vivek Bhupatiraju"],
         "url": "https://vivs.wiki/Semaphore"
+    },
+    {
+        "title": "Getting Started with Semaphore: Building Privacy-Preserving dApps on Ethereum",
+        "minRead": 7,
+        "date": "2024-12-09",
+        "authors": ["glasswing"],
+        "url": "https://mirror.xyz/0xBE98D44c29D179588b7E717Db8898529e5cD770F/5Xlv1jzwJKfKgP-m257kjivBlUIM_cwTzsmpf9F0Su8"
+    },
+    {
+        "title": "Semaphore V4 Specification",
+        "minRead": 10,
+        "date": "2025-03-01",
+        "authors": ["Semaphore Team"],
+        "url": "https://github.com/zkspecs/zkspecs/blob/main/specs/3/README.md"
     }
 ]

apps/website/src/data/events.json

@@ -1,14 +1,20 @@
 [
     {
-        "name": "DIF - Decentralized Identity Foundation",
-        "date": "Oct 1 - Nov 4, 2024",
-        "description": "Semaphore team will deliver a talk and sponsor prizes for the online hackathon.",
-        "link": "https://identity.foundation/"
+        "name": "ETHDam",
+        "date": "May 9-11, 2025",
+        "description": "Semaphore team will deliver an in-person talk.",
+        "link": "https://www.ethdam.com/"
     },
     {
-        "name": "Devcon",
-        "date": "Nov 12-15, 2024",
+        "name": "ZuBerlin",
+        "date": "June 14-22, 2025",
+        "description": "Semaphore team will deliver an in-person talk.",
+        "link": "https://zuberlin.city/"
+    },
+    {
+        "name": "Devconnect",
+        "date": "Nov 17-22, 2025",
         "description": "Semaphore team will deliver an in-person talk and run workshops.",
-        "link": "https://devcon.org/en/"
+        "link": "https://devconnect.org/"
     }
 ]

apps/website/src/data/projects.json

@@ -555,5 +555,36 @@
             "github": "https://github.com/GeneralMagicio/pairwise-RPGF4",
             "website": "https://pairwise.vote"
         }
+    },
+    {
+        "name": "VeilEscrow",
+        "categories": ["Privacy", "Coordination"],
+        "tagline": "Secure, private, and decentralized escrows for anonymous transactions",
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/evgongora/VeilEscrow"
+        }
+    },
+    {
+        "name": "Obscurus",
+        "categories": ["Voting", "Privacy"],
+        "tagline": "An anonymity layer for Safe Wallet owners, built using Semaphore and Zodiac.",
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/quartz-technology/obscurus"
+        }
+    },
+    {
+        "name": "Semaphore Modular Smart Account Modules",
+        "categories": ["Wallet", "Privacy"],
+        "tagline": "Anonymous multi-sig wallet with Semaphore",
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/jimmychu0807/semaphore-msa-modules",
+            "website": "https://semaphore-msa-modules.jimmychu0807.hk"
+        }
     }
 ]

apps/website/src/data/roadmap.json

@@ -17,18 +17,30 @@
     },
     {
         "name": "LeanIMT Paper",
-        "done": false
-    },
-    {
-        "name": "RLN extension",
-        "done": false
+        "done": true
     },
     {
         "name": "Support more Testnets/Mainnets",
+        "done": true
+    },
+    {
+        "name": "New Explorer",
+        "done": true
+    },
+    {
+        "name": "Semaphore V4 Specification",
+        "done": true
+    },
+    {
+        "name": "Semaphore Rust Implementation",
+        "done": true
+    },
+    {
+        "name": "Semaphore Noir Implementation",
         "done": false
     },
     {
-        "name": "Documentation Revamp",
+        "name": "Scaling Semaphore with PIR",
         "done": false
     }
 ]

apps/website/src/data/videos.json

@@ -118,5 +118,13 @@
         "speakers": ["Vivian Plasencia"],
         "url": "https://youtu.be/ux5Xy_lpiYk",
         "thumbnail": "https://img.youtube.com/vi/ux5Xy_lpiYk/0.jpg"
+    },
+    {
+        "title": "Scaling Semaphore",
+        "eventName": "ETHDam",
+        "date": "2025-05-10",
+        "speakers": ["Vivian Plasencia"],
+        "url": "https://youtu.be/IkYtKSQLR-A",
+        "thumbnail": "https://img.youtube.com/vi/IkYtKSQLR-A/0.jpg"
     }
 ]

packages/circuits/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@semaphore-protocol/circuits",
-    "version": "4.1.0",
+    "version": "4.12.0",
     "description": "Semaphore Circom circuits to generate zero-knowledge proofs.",
     "license": "MIT",
     "files": [
@@ -30,9 +30,9 @@
     "devDependencies": {
         "@semaphore-protocol/core": "workspace:^",
         "@types/mocha": "^10.0.6",
-        "@zk-kit/baby-jubjub": "1.0.1",
-        "circomkit": "^0.0.19",
+        "@zk-kit/baby-jubjub": "1.0.3",
+        "circomkit": "0.0.19",
         "mocha": "^10.2.0",
-        "poseidon-lite": "^0.2.0"
+        "poseidon-lite": "^0.3.0"
     }
 }

packages/circuits/src/semaphore.circom

@@ -56,7 +56,7 @@ template Semaphore(MAX_DEPTH) {
     // Proof of membership verification.
     // The Merkle root passed as output must be equal to that calculated within
     // the circuit through the inputs of the Merkle proof.
-    // See https://github.com/privacy-scaling-explorations/zk-kit/blob/main/packages/circuits/circom/binary-merkle-root.circom
+    // See https://github.com/privacy-scaling-explorations/zk-kit.circom/blob/main/packages/binary-merkle-root/src/binary-merkle-root.circom
     // to know more about how the 'BinaryMerkleRoot' template works.
     merkleRoot <== BinaryMerkleRoot(MAX_DEPTH)(identityCommitment, merkleProofLength, merkleProofIndices, merkleProofSiblings);
 

packages/cli-template-contracts-foundry/.editorconfig

@@ -0,0 +1,13 @@
+#root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 120
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false

packages/cli-template-contracts-foundry/.env.example

@@ -0,0 +1,3 @@
+SEPOLIA_RPC_URL=
+PRIVATE_KEY=
+ETHERSCAN_API_KEY=

packages/cli-template-contracts-foundry/.gitignore

@@ -0,0 +1,43 @@
+node_modules
+.env
+
+# solidity-coverage files
+/coverage
+/coverage.json
+
+# Output of 'npm pack'
+*.tgz
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Optional npm cache directory
+.npm
+.DS_Store
+
+# yarn v3
+.pnp.*
+.pnp.js
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Foundry artifact
+cache/
+out/
+
+# artifact for deploying on local Anvil node
+**/31337
+

packages/cli-template-contracts-foundry/.prettierignore

@@ -0,0 +1,30 @@
+# dependencies
+node_modules
+package-lock.json
+yarn.lock
+.yarn
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# testing
+coverage
+coverage.json
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Foundry artifact
+cache/
+out/
+
+# artifact for deploying on local Anvil node
+**/31337

packages/cli-template-contracts-foundry/.prettierrc.json

@@ -0,0 +1,6 @@
+{
+    "semi": false,
+    "arrowParens": "always",
+    "trailingComma": "none",
+    "plugins": ["prettier-plugin-solidity"]
+}

packages/cli-template-contracts-foundry/.solhint.json

@@ -0,0 +1,6 @@
+{
+    "extends": "solhint:recommended",
+    "rules": {
+        "func-visibility": ["error", { "ignoreConstructors": true }]
+    }
+}

packages/cli-template-contracts-foundry/.yarnrc.yml

@@ -0,0 +1,7 @@
+compressionLevel: mixed
+
+enableGlobalCache: false
+
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.1.0.cjs

packages/cli-template-contracts-foundry/README.md

@@ -0,0 +1,113 @@
+# Semaphore Foundry Template
+
+This project demonstrates a basic Semaphore use case. It comes with a sample contract, a test for that contract and a sample script that deploys that contract.
+
+## Prerequisites
+
+This project requires [**Foundry**](https://getfoundry.sh/), and thus a [**Rust environment**](https://www.rust-lang.org/), installed in the machine.
+
+## Install
+
+### Install dependencies
+
+```bash
+yarn
+```
+
+## Usage
+
+### Compile contracts
+
+```bash
+yarn compile
+```
+
+### Test contracts
+
+```bash
+yarn test
+```
+
+You can also generate a test coverage report:
+
+```bash
+yarn test:coverage
+```
+
+Or a test gas report:
+
+```bash
+yarn test:gas-report
+```
+
+You can also start a local [Anvil node](https://book.getfoundry.sh/anvil/) with Semaphore and Feedback contracts deployed on it with:
+
+```bash
+yarn dev
+```
+
+### Code quality and formatting
+
+Run [solhint](https://github.com/protofire/solhint) to analyze the code and catch bugs:
+
+```bash
+yarn lint
+```
+
+Run [Prettier](https://prettier.io/) to check formatting rules:
+
+```bash
+yarn prettier
+```
+
+Or to automatically format the code:
+
+```bash
+yarn prettier:write
+```
+
+### Integrating with Semaphore Boilerplate
+
+You can also integrate this project with [Semaphore Boilerplate](https://github.com/semaphore-protocol/boilerplate), using this project as the contract end and connecting with Boilerplate front end.
+
+1. In `cli-template-contracts-foundry` package directory, run:
+
+    ```sh
+    yarn install
+    yarn dev
+    ```
+
+    After running `yarn dev`, notice the output of
+
+    ```sh
+    # ...
+    # ...
+
+    == Return ==
+    feedbackAddr: address 0x6f1AFCA8BCA87bF02091AF6187a5002802f9FB31
+    semaphoreAddr: address 0xb730ce6CAE3FB706e83E4E00dFA31623966570eB
+    semaphoreVerifierAddr: address 0xE2c114f548bEf410eaCe04D0390b61cc963df295
+
+    # ...
+    # ...
+    ```
+
+2. Now, with another terminal, clone Semaphore Boilerplate down:
+
+    ```sh
+    # Clone Semaphore boilerplate and build dependencies
+    git clone https://github.com/semaphore-protocol/boilerplate.git
+    cd boilerplate
+    yarn install
+
+    # Use the sample .env.example
+    cp .env.example .env
+    ```
+
+3. Open the file `apps/web-app/.env.development`. Modify the values of `NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS` and `NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS` with **feedbackAddr** and **semaphoreAddr** values shown in step 1.
+
+4. Run the Boilerplate front end:
+
+    ```sh
+    yarn dev:web-app
+    ```

packages/cli-template-contracts-foundry/foundry.toml

@@ -0,0 +1,15 @@
+[profile.default]
+src = "src"
+out = "out"
+script = "script"
+libs = ["node_modules"]
+allow_paths = ["*", "../.."]
+
+[rpc_endpoints]
+anvil = "http://127.0.0.1:8545"
+# sepolia = "${SEPOLIA_RPC_URL}"
+
+[etherscan]
+# sepolia = { key = "${ETHERSCAN_API_KEY}" }
+
+# See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options

packages/cli-template-contracts-foundry/package.json

@@ -0,0 +1,45 @@
+{
+    "name": "@semaphore-protocol/cli-template-contracts-foundry",
+    "version": "4.12.0",
+    "description": "Semaphore Foundry template.",
+    "license": "Unlicense",
+    "devDependencies": {
+        "@semaphore-protocol/contracts": "4.12.0",
+        "@zk-kit/lean-imt.sol": "2.0.1",
+        "forge-std": "github:foundry-rs/forge-std#v1.9.4",
+        "poseidon-solidity": "0.0.5",
+        "prettier": "^3.2.5",
+        "prettier-plugin-solidity": "^1.3.1",
+        "solhint": "^4.1.1",
+        "wait-on": "^8.0.1"
+    },
+    "scripts": {
+        "dev": "anvil & (wait-on tcp:8545 && forge script script/DeployFeedback.s.sol --rpc-url anvil --broadcast --sender 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266)",
+        "compile": "forge build",
+        "clean": "forge clean",
+        "test": "forge test -vvv",
+        "test:report-gas": "forge test --gas-report",
+        "test:coverage": "forge coverage",
+        "lint": "yarn solhint \"{script,src,test}/**/*.sol\"",
+        "prettier": "prettier -c \"**/*.{json,md,svg,yml,sol}\"",
+        "prettier:write": "prettier -w \"**/*.{json,md,svg,yml,sol}\"",
+        "check": "yarn test & yarn lint & yarn prettier",
+        "prepublish": "tar -czf files.tgz .gitignore .yarn .yarnrc.yml"
+    },
+    "files": [
+        "src",
+        "test",
+        "script",
+        "package.json",
+        "foundry.toml",
+        "remappings.txt",
+        "README.md",
+        "files.tgz",
+        ".editorconfig",
+        ".env.example",
+        ".prettierignore",
+        ".prettierrc.json",
+        ".solhint.json"
+    ],
+    "packageManager": "yarn@4.1.0"
+}

packages/cli-template-contracts-foundry/remappings.txt

@@ -0,0 +1,4 @@
+@semaphore/contracts/=./node_modules/@semaphore-protocol/contracts/
+@zk-kit/lean-imt.sol/=./node_modules/@zk-kit/lean-imt.sol/
+forge-std/=./node_modules/forge-std/src/
+poseidon-solidity/=./node_modules/poseidon-solidity/

packages/cli-template-contracts-foundry/script/DeployFeedback.s.sol

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {Feedback} from "../src/Feedback.sol";
+import {Semaphore} from "@semaphore/contracts/Semaphore.sol";
+import {SemaphoreVerifier} from "@semaphore/contracts/base/SemaphoreVerifier.sol";
+import {ISemaphoreVerifier} from "@semaphore/contracts/interfaces/ISemaphoreVerifier.sol";
+import {Script} from "forge-std/Script.sol";
+
+// Passing SALT parameter to use CREATE2 for deterministic contract address
+bytes32 constant SALT = bytes32(0);
+
+contract DeployFeedback is Script {
+    function run() external returns (address feedbackAddr, address semaphoreAddr, address semaphoreVerifierAddr) {
+        // Default to use the first test user private key of anvil node
+        uint256 deployerPrivateKey = vm.envOr(
+            "PRIVATE_KEY",
+            uint256(0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80)
+        );
+
+        vm.startBroadcast(deployerPrivateKey);
+
+        // Deploy SemaphoreVerifier
+        SemaphoreVerifier semaphoreVerifierContract = new SemaphoreVerifier{salt: SALT}();
+        semaphoreVerifierAddr = address(semaphoreVerifierContract);
+
+        // Deploy Semaphore
+        Semaphore semaphoreContract = new Semaphore{salt: SALT}(ISemaphoreVerifier(semaphoreVerifierAddr));
+        semaphoreAddr = address(semaphoreContract);
+
+        // Deploy Feedback
+        Feedback feedbackContract = new Feedback{salt: SALT}(semaphoreAddr);
+        feedbackAddr = address(feedbackContract);
+
+        vm.stopBroadcast();
+    }
+}

packages/cli-template-contracts-foundry/src/Feedback.sol

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {ISemaphore} from "@semaphore/contracts/interfaces/ISemaphore.sol";
+
+contract Feedback {
+    ISemaphore public semaphore;
+
+    uint256 public groupId;
+
+    constructor(address semaphoreAddress) {
+        semaphore = ISemaphore(semaphoreAddress);
+
+        groupId = semaphore.createGroup();
+    }
+
+    function joinGroup(uint256 identityCommitment) external {
+        semaphore.addMember(groupId, identityCommitment);
+    }
+
+    function sendFeedback(
+        uint256 merkleTreeDepth,
+        uint256 merkleTreeRoot,
+        uint256 nullifier,
+        uint256 feedback,
+        uint256[8] calldata points
+    ) external {
+        ISemaphore.SemaphoreProof memory proof = ISemaphore.SemaphoreProof(
+            merkleTreeDepth,
+            merkleTreeRoot,
+            nullifier,
+            feedback,
+            groupId,
+            points
+        );
+
+        semaphore.validateProof(groupId, proof);
+    }
+}

packages/cli-template-contracts-foundry/test/Feedback.t.sol

@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {Test} from "forge-std/Test.sol";
+import {ISemaphore} from "@semaphore/contracts/interfaces/ISemaphore.sol";
+import {ISemaphoreGroups} from "@semaphore/contracts/interfaces/ISemaphoreGroups.sol";
+import {Feedback} from "../src/Feedback.sol";
+import {DeployFeedback} from "../script/DeployFeedback.s.sol";
+
+contract FeedbackTest is Test {
+    event MemberAdded(uint256 indexed groupId, uint256 index, uint256 identityCommitment, uint256 merkleTreeRoot);
+
+    Feedback internal feedbackContract;
+    ISemaphore internal semaphoreContract;
+    ISemaphoreGroups internal semaphoreGroups;
+    uint256 internal groupId;
+
+    function setUp() external {
+        DeployFeedback deployFeedback = new DeployFeedback();
+        (address feedbackAddress, address semaphoreAddress, ) = deployFeedback.run();
+        feedbackContract = Feedback(feedbackAddress);
+        semaphoreContract = ISemaphore(semaphoreAddress);
+        semaphoreGroups = ISemaphoreGroups(semaphoreAddress);
+        groupId = feedbackContract.groupId();
+    }
+
+    function testGroupCreatedInConstructor() public view {
+        uint256 groupCount = semaphoreContract.groupCounter();
+        assertEq(groupCount, 1);
+    }
+
+    function testJoinGroup() public {
+        // The commitment below is generated with private key of the first account in Anvil
+        uint256 identityCommitment = 15072455385723004728391568434269917452175057560864330595979104241296826134229;
+
+        // Test: expect an event emitted. Check for all event topics and data
+        vm.expectEmit(true, true, true, true);
+        emit MemberAdded(groupId, 0, identityCommitment, identityCommitment);
+
+        feedbackContract.joinGroup(identityCommitment);
+    }
+
+    function testSendFeedback() public {
+        uint256[] memory commitments = new uint256[](2);
+        commitments[0] = uint256(11005642493773047649202648265396872197147567800455247120861783398111750817516);
+        commitments[1] = uint256(14473821761500463903284857947161896352613497175238126022206384102438097355186);
+
+        for (uint256 i = 0; i < commitments.length; ++i) {
+            feedbackContract.joinGroup(commitments[i]);
+        }
+
+        uint256 merkleTreeDepth = 1;
+        uint256 merkleTreeRoot = semaphoreGroups.getMerkleTreeRoot(groupId);
+        uint256 feedback = uint256(bytes32("Hello World"));
+
+        // These values are computed by running through @semaphore-protocol/circuits
+        uint256 nullifier = 14622092170088252518938850323258916742048811914834592843410744760450844885096;
+        uint256[8] memory points = [
+            2004484873491928515306456072357737929124240734208600886081152392890959117520,
+            21291026142870585364296731900941597996672838511394659364623185352043543529323,
+            4657264777014371046112557309523098953851041383509685591373847255581509612788,
+            6904165961903336246592681066375875983213983935764940579845010085396463328555,
+            1952750241178995674697344628236393389729638396609772141225880353616301956443,
+            106937615136633409337870509099767689510837462832227699340906789167349502398,
+            13080722838047436988558418790480431472161933638137155324683844808531903905810,
+            2547578906197450986657523555784319153413167960139250957065929818900731634820
+        ];
+
+        vm.expectEmit(true, true, true, true);
+        emit ISemaphore.ProofValidated(groupId, merkleTreeDepth, merkleTreeRoot, nullifier, feedback, groupId, points);
+
+        feedbackContract.sendFeedback(merkleTreeDepth, merkleTreeRoot, nullifier, feedback, points);
+    }
+}

packages/cli-template-contracts-hardhat/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@semaphore-protocol/cli-template-contracts-hardhat",
-    "version": "4.1.0",
+    "version": "4.12.0",
     "description": "Semaphore Hardhat template.",
     "license": "Unlicense",
     "files": [
@@ -16,7 +16,8 @@
         ".prettierrc.json",
         "hardhat.config.ts",
         "tsconfig.json",
-        "README.md"
+        "README.md",
+        ".solhint.json"
     ],
     "publishConfig": {
         "access": "public"
@@ -41,9 +42,9 @@
         "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
         "@nomicfoundation/hardhat-toolbox": "^4.0.0",
         "@nomicfoundation/hardhat-verify": "^2.0.0",
-        "@semaphore-protocol/core": "4.1.0",
-        "@semaphore-protocol/hardhat": "4.1.0",
-        "@semaphore-protocol/utils": "4.1.0",
+        "@semaphore-protocol/core": "4.12.0",
+        "@semaphore-protocol/hardhat": "4.12.0",
+        "@semaphore-protocol/utils": "4.12.0",
         "@typechain/ethers-v6": "^0.5.0",
         "@typechain/hardhat": "^9.0.0",
         "@types/chai": "^4.2.0",
@@ -59,7 +60,7 @@
         "eslint-config-airbnb-typescript": "^17.1.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-import": "^2.29.1",
-        "ethers": "^6.4.0",
+        "ethers": "^6.13.4",
         "hardhat": "^2.20.1",
         "hardhat-gas-reporter": "^1.0.8",
         "prettier": "^3.2.5",
@@ -71,7 +72,7 @@
         "typescript": "^5.3.3"
     },
     "dependencies": {
-        "@semaphore-protocol/contracts": "4.1.0"
+        "@semaphore-protocol/contracts": "4.12.0"
     },
     "packageManager": "yarn@4.1.0"
 }

packages/cli-template-monorepo-ethers/apps/contracts/package.json

@@ -20,9 +20,9 @@
         "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
         "@nomicfoundation/hardhat-toolbox": "^4.0.0",
         "@nomicfoundation/hardhat-verify": "^2.0.0",
-        "@semaphore-protocol/core": "4.1.0",
-        "@semaphore-protocol/hardhat": "4.1.0",
-        "@semaphore-protocol/utils": "4.1.0",
+        "@semaphore-protocol/core": "4.12.0",
+        "@semaphore-protocol/hardhat": "4.12.0",
+        "@semaphore-protocol/utils": "4.12.0",
         "@typechain/ethers-v6": "^0.5.0",
         "@typechain/hardhat": "^9.0.0",
         "@types/chai": "^4.2.0",
@@ -38,7 +38,7 @@
         "eslint-config-airbnb-typescript": "^17.1.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-import": "^2.29.1",
-        "ethers": "^6.4.0",
+        "ethers": "^6.13.4",
         "hardhat": "^2.20.1",
         "hardhat-gas-reporter": "^1.0.8",
         "prettier": "^3.2.5",
@@ -50,7 +50,7 @@
         "typescript": "^5.3.3"
     },
     "dependencies": {
-        "@semaphore-protocol/contracts": "4.1.0"
+        "@semaphore-protocol/contracts": "4.12.0"
     },
     "packageManager": "yarn@4.1.0"
 }

packages/cli-template-monorepo-ethers/apps/web-app/.env.development

@@ -1,4 +1,4 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=localhost
-NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9
+NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0
 NEXT_PUBLIC_GROUP_ID=0

packages/cli-template-monorepo-ethers/apps/web-app/.env.production

@@ -1,5 +1,8 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=sepolia
+NEXT_PUBLIC_INFURA_API_KEY=abf67af1010b4b8d877e04244f1eac3d
 NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x1e0d7FF1610e480fC93BdEC510811ea2Ba6d7c2f
 NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK=https://api.defender.openzeppelin.com/actions/20fce2ae-844b-4ec0-a6a2-90a3350a9d2c/runs/webhook/303216d1-fa7d-4fca-8c5b-7ba1ba544fc7/2T7i9xrkZA5j37hoaQLUuw
+NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT=https://api.gelato.digital/relays/v2/sponsored-call
+NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID=11155111
 NEXT_PUBLIC_GROUP_ID=

packages/cli-template-monorepo-ethers/apps/web-app/.gitignore

@@ -1,5 +1,8 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
+# testing
+/coverage
+
 # next.js
 /.next/
 /out/
@@ -7,3 +10,18 @@
 # production
 /build
 
+# misc
+.DS_Store
+*.pem
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# Auto Generated PWA files
+public/sw.js
+public/workbox-*.js
+public/worker-*.js
+public/sw.js.map
+public/workbox-*.js.map
+public/worker-*.js.map

packages/cli-template-monorepo-ethers/apps/web-app/contract-artifacts/Feedback.json

@@ -9,11 +9,6 @@
                     "internalType": "address",
                     "name": "semaphoreAddress",
                     "type": "address"
-                },
-                {
-                    "internalType": "uint256",
-                    "name": "_groupId",
-                    "type": "uint256"
                 }
             ],
             "stateMutability": "nonpayable",
@@ -92,8 +87,8 @@
             "type": "function"
         }
     ],
-    "bytecode": "0x608060405234801561001057600080fd5b5060405161083f38038061083f833981810160405281019061003291906101a8565b816000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff1602179055508060018190555060008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663c96e71fb600154306040518363ffffffff1660e01b81526004016100d6929190610206565b600060405180830381600087803b1580156100f057600080fd5b505af1158015610104573d6000803e3d6000fd5b50505050505061022f565b600080fd5b600073ffffffffffffffffffffffffffffffffffffffff82169050919050565b600061013f82610114565b9050919050565b61014f81610134565b811461015a57600080fd5b50565b60008151905061016c81610146565b92915050565b6000819050919050565b61018581610172565b811461019057600080fd5b50565b6000815190506101a28161017c565b92915050565b600080604083850312156101bf576101be61010f565b5b60006101cd8582860161015d565b92505060206101de85828601610193565b9150509250929050565b6101f181610172565b82525050565b61020081610134565b82525050565b600060408201905061021b60008301856101e8565b61022860208301846101f7565b9392505050565b6106018061023e6000396000f3fe608060405234801561001057600080fd5b506004361061004c5760003560e01c80637b5d2534146100515780637b85d27a1461006f578063a0f44c921461008b578063eed02e4b146100a9575b600080fd5b6100596100c5565b6040516100669190610301565b60405180910390f35b6100896004803603810190610084919061037e565b6100e9565b005b6100936101ea565b6040516100a09190610409565b60405180910390f35b6100c360048036038101906100be9190610424565b6101f0565b005b60008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b60006040518060c001604052808781526020018681526020018581526020018481526020016001548152602001836008806020026040519081016040528092919082600860200280828437600081840152601f19601f820116905080830192505050505050815250905060008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663d0d898dd600154836040518363ffffffff1660e01b81526004016101b0929190610578565b600060405180830381600087803b1580156101ca57600080fd5b505af11580156101de573d6000803e3d6000fd5b50505050505050505050565b60015481565b60008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16631783efc3600154836040518363ffffffff1660e01b815260040161024d9291906105a2565b600060405180830381600087803b15801561026757600080fd5b505af115801561027b573d6000803e3d6000fd5b5050505050565b600073ffffffffffffffffffffffffffffffffffffffff82169050919050565b6000819050919050565b60006102c76102c26102bd84610282565b6102a2565b610282565b9050919050565b60006102d9826102ac565b9050919050565b60006102eb826102ce565b9050919050565b6102fb816102e0565b82525050565b600060208201905061031660008301846102f2565b92915050565b600080fd5b6000819050919050565b61033481610321565b811461033f57600080fd5b50565b6000813590506103518161032b565b92915050565b600080fd5b60008190508260206008028201111561037857610377610357565b5b92915050565b6000806000806000610180868803121561039b5761039a61031c565b5b60006103a988828901610342565b95505060206103ba88828901610342565b94505060406103cb88828901610342565b93505060606103dc88828901610342565b92505060806103ed8882890161035c565b9150509295509295909350565b61040381610321565b82525050565b600060208201905061041e60008301846103fa565b92915050565b60006020828403121561043a5761043961031c565b5b600061044884828501610342565b91505092915050565b61045a81610321565b82525050565b600060089050919050565b600081905092915050565b6000819050919050565b600061048c8383610451565b60208301905092915050565b6000602082019050919050565b6104ae81610460565b6104b8818461046b565b92506104c382610476565b8060005b838110156104f45781516104db8782610480565b96506104e683610498565b9250506001810190506104c7565b505050505050565b6101a0820160008201516105136000850182610451565b5060208201516105266020850182610451565b5060408201516105396040850182610451565b50606082015161054c6060850182610451565b50608082015161055f6080850182610451565b5060a082015161057260a08501826104a5565b50505050565b60006101c08201905061058e60008301856103fa565b61059b60208301846104fc565b9392505050565b60006040820190506105b760008301856103fa565b6105c460208301846103fa565b939250505056fea2646970667358221220f33606b2d5ad7c0dfc5d22afb43476e1974ea7fd160e1f28203a3e433f29cb4964736f6c63430008170033",
-    "deployedBytecode": "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",
+    "bytecode": "0x608060405234801561001057600080fd5b506040516108473803806108478339818101604052810190610032919061017d565b806000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555060008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16635c3f3b60306040518263ffffffff1660e01b81526004016100cb91906101b9565b6020604051808303816000875af11580156100ea573d6000803e3d6000fd5b505050506040513d601f19601f8201168201806040525081019061010e919061020a565b60018190555050610237565b600080fd5b600073ffffffffffffffffffffffffffffffffffffffff82169050919050565b600061014a8261011f565b9050919050565b61015a8161013f565b811461016557600080fd5b50565b60008151905061017781610151565b92915050565b6000602082840312156101935761019261011a565b5b60006101a184828501610168565b91505092915050565b6101b38161013f565b82525050565b60006020820190506101ce60008301846101aa565b92915050565b6000819050919050565b6101e7816101d4565b81146101f257600080fd5b50565b600081519050610204816101de565b92915050565b6000602082840312156102205761021f61011a565b5b600061022e848285016101f5565b91505092915050565b610601806102466000396000f3fe608060405234801561001057600080fd5b506004361061004c5760003560e01c80637b5d2534146100515780637b85d27a1461006f578063a0f44c921461008b578063eed02e4b146100a9575b600080fd5b6100596100c5565b6040516100669190610301565b60405180910390f35b6100896004803603810190610084919061037e565b6100e9565b005b6100936101ea565b6040516100a09190610409565b60405180910390f35b6100c360048036038101906100be9190610424565b6101f0565b005b60008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b60006040518060c001604052808781526020018681526020018581526020018481526020016001548152602001836008806020026040519081016040528092919082600860200280828437600081840152601f19601f820116905080830192505050505050815250905060008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663d0d898dd600154836040518363ffffffff1660e01b81526004016101b0929190610578565b600060405180830381600087803b1580156101ca57600080fd5b505af11580156101de573d6000803e3d6000fd5b50505050505050505050565b60015481565b60008054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16631783efc3600154836040518363ffffffff1660e01b815260040161024d9291906105a2565b600060405180830381600087803b15801561026757600080fd5b505af115801561027b573d6000803e3d6000fd5b5050505050565b600073ffffffffffffffffffffffffffffffffffffffff82169050919050565b6000819050919050565b60006102c76102c26102bd84610282565b6102a2565b610282565b9050919050565b60006102d9826102ac565b9050919050565b60006102eb826102ce565b9050919050565b6102fb816102e0565b82525050565b600060208201905061031660008301846102f2565b92915050565b600080fd5b6000819050919050565b61033481610321565b811461033f57600080fd5b50565b6000813590506103518161032b565b92915050565b600080fd5b60008190508260206008028201111561037857610377610357565b5b92915050565b6000806000806000610180868803121561039b5761039a61031c565b5b60006103a988828901610342565b95505060206103ba88828901610342565b94505060406103cb88828901610342565b93505060606103dc88828901610342565b92505060806103ed8882890161035c565b9150509295509295909350565b61040381610321565b82525050565b600060208201905061041e60008301846103fa565b92915050565b60006020828403121561043a5761043961031c565b5b600061044884828501610342565b91505092915050565b61045a81610321565b82525050565b600060089050919050565b600081905092915050565b6000819050919050565b600061048c8383610451565b60208301905092915050565b6000602082019050919050565b6104ae81610460565b6104b8818461046b565b92506104c382610476565b8060005b838110156104f45781516104db8782610480565b96506104e683610498565b9250506001810190506104c7565b505050505050565b6101a0820160008201516105136000850182610451565b5060208201516105266020850182610451565b5060408201516105396040850182610451565b50606082015161054c6060850182610451565b50608082015161055f6080850182610451565b5060a082015161057260a08501826104a5565b50505050565b60006101c08201905061058e60008301856103fa565b61059b60208301846104fc565b9392505050565b60006040820190506105b760008301856103fa565b6105c460208301846103fa565b939250505056fea264697066735822122078569abd7f309f3107c4d19e9b4a4f4812522ccc5dc57c7ccbe2b06a5ba461b064736f6c63430008170033",
+    "deployedBytecode": "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",
     "linkReferences": {},
     "deployedLinkReferences": {}
 }

packages/cli-template-monorepo-ethers/apps/web-app/next.config.mjs

@@ -14,7 +14,8 @@ const nextConfig = withPWA({
 })({
     env: {
         INFURA_API_KEY: process.env.INFURA_API_KEY,
-        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY
+        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY,
+        GELATO_RELAYER_API_KEY: process.env.GELATO_RELAYER_API_KEY
     }
 })
 

packages/cli-template-monorepo-ethers/apps/web-app/package.json

@@ -9,10 +9,10 @@
         "lint": "next lint"
     },
     "dependencies": {
-        "@semaphore-protocol/core": "4.1.0",
-        "@semaphore-protocol/data": "4.1.0",
-        "@semaphore-protocol/utils": "4.1.0",
-        "ethers": "^6.11.1",
+        "@semaphore-protocol/core": "4.12.0",
+        "@semaphore-protocol/data": "4.12.0",
+        "@semaphore-protocol/utils": "4.12.0",
+        "ethers": "^6.13.4",
         "next": "14.1.0",
         "next-pwa": "^5.6.0",
         "react": "^18",

packages/cli-template-monorepo-ethers/apps/web-app/src/app/api/feedback/route.ts

@@ -3,26 +3,14 @@ import { NextRequest } from "next/server"
 import Feedback from "../../../../contract-artifacts/Feedback.json"
 
 export async function POST(req: NextRequest) {
-    if (typeof process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS !== "string") {
-        throw new Error("Please, define NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS in your .env file")
-    }
-
-    if (typeof process.env.NEXT_PUBLIC_DEFAULT_NETWORK !== "string") {
-        throw new Error("Please, define NEXT_PUBLIC_DEFAULT_NETWORK in your .env file")
-    }
-
-    if (typeof process.env.INFURA_API_KEY !== "string" && process.env.NEXT_PUBLIC_DEFAULT_NETWORK !== "localhost") {
-        throw new Error("Please, define INFURA_API_KEY in your .env file")
-    }
-
     if (typeof process.env.ETHEREUM_PRIVATE_KEY !== "string") {
         throw new Error("Please, define ETHEREUM_PRIVATE_KEY in your .env file")
     }
 
     const ethereumPrivateKey = process.env.ETHEREUM_PRIVATE_KEY
-    const ethereumNetwork = process.env.NEXT_PUBLIC_DEFAULT_NETWORK
-    const infuraApiKey = process.env.INFURA_API_KEY
-    const contractAddress = process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS
+    const ethereumNetwork = process.env.NEXT_PUBLIC_DEFAULT_NETWORK as string
+    const infuraApiKey = process.env.NEXT_PUBLIC_INFURA_API_KEY as string
+    const contractAddress = process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS as string
 
     const provider =
         ethereumNetwork === "localhost"

packages/cli-template-monorepo-ethers/apps/web-app/src/app/api/join/route.ts

@@ -3,26 +3,14 @@ import { NextRequest } from "next/server"
 import Feedback from "../../../../contract-artifacts/Feedback.json"
 
 export async function POST(req: NextRequest) {
-    if (typeof process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS !== "string") {
-        throw new Error("Please, define NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS in your .env file")
-    }
-
-    if (typeof process.env.NEXT_PUBLIC_DEFAULT_NETWORK !== "string") {
-        throw new Error("Please, define NEXT_PUBLIC_DEFAULT_NETWORK in your .env file")
-    }
-
-    if (typeof process.env.INFURA_API_KEY !== "string" && process.env.NEXT_PUBLIC_DEFAULT_NETWORK !== "localhost") {
-        throw new Error("Please, define INFURA_API_KEY in your .env file")
-    }
-
     if (typeof process.env.ETHEREUM_PRIVATE_KEY !== "string") {
         throw new Error("Please, define ETHEREUM_PRIVATE_KEY in your .env file")
     }
 
     const ethereumPrivateKey = process.env.ETHEREUM_PRIVATE_KEY
-    const ethereumNetwork = process.env.NEXT_PUBLIC_DEFAULT_NETWORK
-    const infuraApiKey = process.env.INFURA_API_KEY
-    const contractAddress = process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS
+    const ethereumNetwork = process.env.NEXT_PUBLIC_DEFAULT_NETWORK as string
+    const infuraApiKey = process.env.NEXT_PUBLIC_INFURA_API_KEY as string
+    const contractAddress = process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS as string
 
     const provider =
         ethereumNetwork === "localhost"

packages/cli-template-monorepo-ethers/apps/web-app/src/app/globals.css

@@ -1,29 +1,40 @@
 :root {
-    --slate100: #f1f5f9;
-    --slate200: #e2e8f0;
-    --slate300: #cbd5e1;
-    --slate400: #94a3b8;
-    --slate500: #64748b;
-    --slate700: #334155;
-    --blue200: #bfdbfe;
-    --blue500: #3b82f6;
-    --blue600: #2563eb;
-    --blue700: #1d4ed8;
-    --blue800: #1e40af;
-    --blue900: #1e3a8a;
+    --blue100: #dde6fc;
+    --blue200: #c3d4fa;
+    --blue300: #9abaf6;
+    --blue400: #6a95f0;
+    --blue500: #4771ea;
+    --blue600: #3555df;
+    --blue700: #2940cc;
+    --blue800: #2735a6;
+    --blue900: #253183;
+    --blue950: #1b2050;
     --darkBlueBg: #00020d;
+    --slate50: #f7f7f8;
+    --slate100: #eeeef0;
+    --slate200: #d9d9de;
+    --slate300: #b8b9c1;
+    --slate400: #92939e;
+    --slate500: #747583;
+    --slate600: #5e5f6b;
+    --slate700: #4d4e57;
+    --slate800: #42424a;
+    --slate900: #3a3a40;
+    --slate950: #26262b;
 }
 
 * {
     box-sizing: border-box;
     padding: 0;
     margin: 0;
+    font-family: "Outfit", sans-serif;
 }
 
 html,
 body {
     max-width: 100vw;
     overflow-x: hidden;
+    height: 100vh;
 }
 
 body {
@@ -33,17 +44,30 @@ body {
 
 p {
     line-height: 1.5rem;
+    font-weight: 300;
+    overflow-wrap: break-word;
+    font-size: 1rem;
+}
+
+b {
+    font-weight: 600;
+}
+
+.key-wrapper {
+    padding-bottom: 1.5rem;
+    padding-left: 0.5rem;
 }
 
 .container {
     display: flex;
     flex-direction: column;
     height: 100%;
-    max-width: 32rem;
-
+    max-width: 40vw;
+    min-width: 35rem;
     margin: auto;
     padding: 1rem;
-
+    height: calc(100vh - 7rem - 1px);
+    padding-bottom: 5rem;
     min-height: calc(100vh - 3.5rem);
 }
 
@@ -57,28 +81,25 @@ p {
     margin-bottom: 1rem;
 }
 
-ol {
-    padding: 1rem;
-}
-
-li {
-    margin-top: 1rem;
-}
-
 h2 {
     font-size: 2.25rem;
     font-weight: 500;
     margin-bottom: 1rem;
+    line-height: 1.2;
 }
 
 h3 {
-    font-size: 1.125rem;
+    font-size: 1.15rem;
     font-weight: 500;
 }
 
 .divider {
-    height: 1px;
-    background: var(--slate500);
+    opacity: 0.6;
+    border: 0;
+    border-style: solid;
+    border-bottom-width: 1px;
+    width: 100%;
+    border-color: var(--slate400);
     margin: 2rem 0;
 }
 
@@ -89,31 +110,44 @@ h3 {
 }
 
 a {
-    color: var(--blue500);
+    color: var(--blue400);
+    text-decoration: none;
+}
+
+a:hover {
+    text-decoration: underline;
+    text-decoration-color: var(--blue400);
 }
 
 .button {
-    background-color: var(--blue800);
-    width: 100%;
-    padding: 0.8rem 1rem;
-    border: 1px;
     border-radius: 100px;
-    cursor: pointer;
-    color: var(--slate100);
-    font-size: 1.125rem;
-    font-weight: 500;
-    transition: all 200ms linear;
-    margin-top: 1rem;
-    margin-bottom: 1.5rem;
-    opacity: 0.9;
+    font-weight: 400;
+    transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
+    transition-duration: 200ms;
+    padding-left: 18px !important;
+    padding-right: 18px !important;
+    height: 2.5rem;
+    min-width: 2.5rem;
+    font-size: 1rem;
+    -webkit-padding-start: 1rem;
+    padding-inline-start: 1rem;
+    -webkit-padding-end: 1rem;
+    padding-inline-end: 1rem;
+    background: var(--blue500);
+    color: white;
+    background-image: linear-gradient(to right, var(--blue500), var(--blue800));
+    transition-timing-function: linear;
+    width: 100%;
+    border: none;
     display: flex;
-    justify-content: center;
-    height: 3rem;
     align-items: center;
+    justify-content: center;
 }
 
 .button:hover {
-    background-color: var(--blue900);
+    background-color: var(--blue800);
+    background-image: none;
+    cursor: pointer;
 }
 
 .button:disabled {
@@ -123,54 +157,126 @@ a {
 
 .button:disabled:hover {
     background-color: var(--blue800);
+    background-image: none;
 }
 
 .button-stepper {
     cursor: pointer;
-    color: var(--blue600);
+    color: var(--blue500);
     font-size: 1.1rem;
     border: none;
     background: none;
+    width: 4rem;
+    margin: 0 1rem;
+    display: flex;
+    justify-content: center;
 }
 
-.button-link {
+.button-stepper:hover {
+    text-decoration: underline;
+}
+
+.refresh-wrapper {
+    color: var(--slate400);
+    display: flex;
+    align-items: center;
+}
+
+.refresh-wrapper:hover {
+    text-decoration: underline;
+}
+
+.refresh-button {
     cursor: pointer;
     color: var(--slate300);
     font-size: 1.1rem;
     border: none;
     background: none;
+    padding-right: 1rem;
+    display: flex;
+    align-items: center;
+}
+
+.refresh-button:hover {
+    text-decoration: underline;
+}
+
+.refresh-span {
+    width: 1.5em;
+    height: 1em;
+    display: inline-block;
+    line-height: 1em;
+    -webkit-flex-shrink: 0;
+    -ms-flex-negative: 0;
+    flex-shrink: 0;
+    color: currentColor;
+    vertical-align: middle;
+}
+
+.refresh-icon {
+    margin-inline-end: 0.5rem;
+}
+
+.stepper-icon {
+    display: inline-flex;
+    align-self: center;
+    -webkit-flex-shrink: 0;
+    -ms-flex-negative: 0;
+    flex-shrink: 0;
+}
+
+.left-pad {
+    margin-inline-end: 0.5rem;
+}
+
+.right-pad {
+    margin-inline-start: 0.5rem;
+}
+
+.stepper-icon svg {
+    width: 1em;
+    height: 1em;
+    display: inline-block;
+    line-height: 1em;
+    -webkit-flex-shrink: 0;
+    -ms-flex-negative: 0;
+    flex-shrink: 0;
+    color: currentColor;
+    vertical-align: super;
 }
 
 .box {
-    padding: 0.8rem;
-    border-style: solid;
-    border-width: 1px;
-    border-color: var(--slate500);
-    border-radius: 4px;
+    border-bottom: 1px solid white;
+    padding: 0.8rem 0;
+    max-height: 50px;
 }
 
 .box-text {
     text-overflow: ellipsis;
     overflow: hidden;
     white-space: nowrap;
-    margin: 0.5rem;
+    font-size: 1rem;
 }
 
 .header {
     display: flex;
     justify-content: space-between;
-    padding: 1.5rem;
+    padding: 0 1.5rem;
+    height: 3.5rem;
 }
 
 .header-left {
     font-size: 1.125rem;
     font-weight: 500;
-    text-decoration: none;
+    text-decoration: none !important;
+    display: flex;
+    align-items: center;
 }
 
 .header-right {
     display: flex;
     gap: 1.5rem;
+    align-items: center;
 }
 
 .footer {
@@ -188,6 +294,57 @@ a {
     background: var(--slate500);
 }
 
+.users-wrapper,
+.feedback-wrapper {
+    max-height: 300px;
+    overflow-y: scroll;
+}
+
+.keys-header {
+    margin-bottom: 1.5rem;
+}
+
+.users-header {
+    font-weight: 700;
+    font-size: 1.125rem;
+    font-family: "DM Sans", sans-serif;
+}
+
+.join-group-button,
+.send-feedback-button {
+    margin-top: 1.5rem;
+}
+
+.github-icon {
+    width: 1.5rem;
+    height: 1.5rem;
+    display: inline-block;
+    line-height: 1em;
+    -webkit-flex-shrink: 0;
+    -ms-flex-negative: 0;
+    flex-shrink: 0;
+    color: currentColor;
+}
+
+.github-button {
+    cursor: pointer;
+    color: var(--slate100);
+    font-size: 1.1rem;
+    border: none;
+    background: none;
+    padding-right: 1rem;
+    display: flex;
+    align-items: center;
+    box-sizing: border-box;
+    display: inline-block;
+    overflow: visible !important;
+    fill: currentColor;
+    color: #f0f6fc !important;
+    vertical-align: middle !important;
+    width: 2rem;
+    height: 2rem;
+}
+
 .loader {
     width: 25px;
     height: 25px;
@@ -196,7 +353,7 @@ a {
     border-right: 2px solid transparent;
     animation: spin 1s linear infinite;
     z-index: 20;
-    margin-left: 1rem;
+    margin-left: 0.5rem;
 }
 
 @keyframes spin {

packages/cli-template-monorepo-ethers/apps/web-app/src/app/group/page.tsx

@@ -0,0 +1,177 @@
+"use client"
+import Stepper from "@/components/Stepper"
+import { useLogContext } from "@/context/LogContext"
+import { useSemaphoreContext } from "@/context/SemaphoreContext"
+import { useRouter } from "next/navigation"
+import { useCallback, useEffect, useMemo } from "react"
+import Feedback from "../../../contract-artifacts/Feedback.json"
+import { ethers } from "ethers"
+import useSemaphoreIdentity from "@/hooks/useSemaphoreIdentity"
+import { useState } from "react"
+
+export default function GroupsPage() {
+    const router = useRouter()
+    const { setLog } = useLogContext()
+    const { _users, refreshUsers, addUser } = useSemaphoreContext()
+    const [_loading, setLoading] = useState(false)
+    const { _identity } = useSemaphoreIdentity()
+
+    useEffect(() => {
+        if (_users.length > 0) {
+            setLog(`${_users.length} user${_users.length > 1 ? "s" : ""} retrieved from the group 🤙🏽`)
+        }
+    }, [_users, setLog])
+
+    const users = useMemo(() => [..._users].reverse(), [_users])
+
+    const joinGroup = useCallback(async () => {
+        if (!_identity) {
+            return
+        }
+
+        setLoading(true)
+        setLog(`Joining the Feedback group...`)
+
+        let joinedGroup: boolean = false
+
+        if (process.env.NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK) {
+            const response = await fetch(process.env.NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK, {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify({
+                    abi: Feedback.abi,
+                    address: process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS as string,
+                    functionName: "joinGroup",
+                    functionParameters: [_identity.commitment.toString()]
+                })
+            })
+
+            if (response.status === 200) {
+                joinedGroup = true
+            }
+        } else if (
+            process.env.NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT &&
+            process.env.NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID &&
+            process.env.GELATO_RELAYER_API_KEY
+        ) {
+            const iface = new ethers.Interface(Feedback.abi)
+            const request = {
+                chainId: process.env.NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID,
+                target: process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS,
+                data: iface.encodeFunctionData("joinGroup", [_identity.commitment.toString()]),
+                sponsorApiKey: process.env.GELATO_RELAYER_API_KEY
+            }
+            const response = await fetch(process.env.NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT, {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify(request)
+            })
+
+            if (response.status === 201) {
+                joinedGroup = true
+            }
+        } else {
+            const response = await fetch("api/join", {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify({
+                    identityCommitment: _identity.commitment.toString()
+                })
+            })
+
+            if (response.status === 200) {
+                joinedGroup = true
+            }
+        }
+
+        if (joinedGroup) {
+            addUser(_identity.commitment.toString())
+
+            setLog(`You have joined the Feedback group event 🎉 Share your feedback anonymously!`)
+        } else {
+            setLog("Some error occurred, please try again!")
+        }
+
+        setLoading(false)
+    }, [_identity, addUser, setLoading, setLog])
+
+    const userHasJoined = useMemo(
+        () => _identity !== undefined && _users.includes(_identity.commitment.toString()),
+        [_identity, _users]
+    )
+
+    return (
+        <>
+            <h2>Groups</h2>
+
+            <p>
+                <a
+                    href="https://docs.semaphore.pse.dev/guides/groups"
+                    target="_blank"
+                    rel="noreferrer noopener nofollow"
+                >
+                    Semaphore groups
+                </a>{" "}
+                are{" "}
+                <a
+                    href="https://zkkit.pse.dev/classes/_zk_kit_lean_imt.LeanIMT.html"
+                    target="_blank"
+                    rel="noreferrer noopener nofollow"
+                >
+                    Lean incremental Merkle trees
+                </a>{" "}
+                in which each leaf contains an identity commitment for a user. Groups can be abstracted to represent
+                events, polls, or organizations.
+            </p>
+
+            <div className="divider"></div>
+
+            <div className="text-top">
+                <h3 className="users-header">Group users ({_users.length})</h3>
+                <button className="refresh-button" onClick={refreshUsers}>
+                    <span className="refresh-span">
+                        <svg viewBox="0 0 24 24" focusable="false" className="refresh-icon">
+                            <path
+                                fill="currentColor"
+                                d="M5.463 4.43301C7.27756 2.86067 9.59899 1.99666 12 2.00001C17.523 2.00001 22 6.47701 22 12C22 14.136 21.33 16.116 20.19 17.74L17 12H20C20.0001 10.4316 19.5392 8.89781 18.6747 7.58927C17.8101 6.28072 16.5799 5.25517 15.1372 4.64013C13.6944 4.0251 12.1027 3.84771 10.56 4.13003C9.0172 4.41234 7.59145 5.14191 6.46 6.22801L5.463 4.43301ZM18.537 19.567C16.7224 21.1393 14.401 22.0034 12 22C6.477 22 2 17.523 2 12C2 9.86401 2.67 7.88401 3.81 6.26001L7 12H4C3.99987 13.5684 4.46075 15.1022 5.32534 16.4108C6.18992 17.7193 7.42007 18.7449 8.86282 19.3599C10.3056 19.9749 11.8973 20.1523 13.44 19.87C14.9828 19.5877 16.4085 18.8581 17.54 17.772L18.537 19.567Z"
+                            ></path>
+                        </svg>
+                    </span>
+                    Refresh
+                </button>
+            </div>
+
+            {_users.length > 0 && (
+                <div className="users-wrapper">
+                    {users.map((user, i) => (
+                        <div key={i}>
+                            <p className="box box-text">
+                                {_identity?.commitment.toString() === user ? <b>{user}</b> : user}
+                            </p>
+                        </div>
+                    ))}
+                </div>
+            )}
+
+            <div className="join-group-button">
+                <button
+                    className="button"
+                    onClick={joinGroup}
+                    disabled={_loading || !_identity || userHasJoined}
+                    type="button"
+                >
+                    <span>Join group</span>
+                    {_loading && <div className="loader"></div>}
+                </button>
+            </div>
+
+            <div className="divider" />
+
+            <Stepper
+                step={2}
+                onPrevClick={() => router.push("/")}
+                onNextClick={userHasJoined ? () => router.push("/proofs") : undefined}
+            />
+        </>
+    )
+}

packages/cli-template-monorepo-ethers/apps/web-app/src/app/groups/page.tsx

@@ -1,142 +0,0 @@
-"use client"
-
-import { Identity } from "@semaphore-protocol/core"
-import { useRouter } from "next/navigation"
-import { useCallback, useContext, useEffect, useState } from "react"
-import Feedback from "../../../contract-artifacts/Feedback.json"
-import Stepper from "@/components/Stepper"
-import LogsContext from "@/context/LogsContext"
-import SemaphoreContext from "@/context/SemaphoreContext"
-
-export default function GroupsPage() {
-    const router = useRouter()
-    const { setLogs } = useContext(LogsContext)
-    const { _users, refreshUsers, addUser } = useContext(SemaphoreContext)
-    const [_loading, setLoading] = useState(false)
-    const [_identity, setIdentity] = useState<Identity>()
-
-    useEffect(() => {
-        const privateKey = localStorage.getItem("identity")
-
-        if (!privateKey) {
-            router.push("/")
-            return
-        }
-
-        setIdentity(new Identity(privateKey))
-    }, [router])
-
-    useEffect(() => {
-        if (_users.length > 0) {
-            setLogs(`${_users.length} user${_users.length > 1 ? "s" : ""} retrieved from the group 🤙🏽`)
-        }
-    }, [_users, setLogs])
-
-    const joinGroup = useCallback(async () => {
-        if (!_identity) {
-            return
-        }
-
-        setLoading(true)
-        setLogs(`Joining the Feedback group...`)
-
-        let response: any
-
-        if (process.env.OPENZEPPELIN_AUTOTASK_WEBHOOK) {
-            response = await fetch(process.env.OPENZEPPELIN_AUTOTASK_WEBHOOK, {
-                method: "POST",
-                headers: { "Content-Type": "application/json" },
-                body: JSON.stringify({
-                    abi: Feedback.abi,
-                    address: process.env.FEEDBACK_CONTRACT_ADDRESS,
-                    functionName: "joinGroup",
-                    functionParameters: [_identity.commitment.toString()]
-                })
-            })
-        } else {
-            response = await fetch("api/join", {
-                method: "POST",
-                headers: { "Content-Type": "application/json" },
-                body: JSON.stringify({
-                    identityCommitment: _identity.commitment.toString()
-                })
-            })
-        }
-
-        if (response.status === 200) {
-            addUser(_identity.commitment.toString())
-
-            setLogs(`You have joined the Feedback group event 🎉 Share your feedback anonymously!`)
-        } else {
-            setLogs("Some error occurred, please try again!")
-        }
-
-        setLoading(false)
-    }, [_identity, addUser, setLogs])
-
-    const userHasJoined = useCallback((identity: Identity) => _users.includes(identity.commitment.toString()), [_users])
-
-    return (
-        <>
-            <h2>Groups</h2>
-
-            <p>
-                <a
-                    href="https://docs.semaphore.pse.dev/guides/groups"
-                    target="_blank"
-                    rel="noreferrer noopener nofollow"
-                >
-                    Semaphore groups
-                </a>{" "}
-                are{" "}
-                <a
-                    href="https://zkkit.pse.dev/classes/_zk_kit_imt.LeanIMT.html"
-                    target="_blank"
-                    rel="noreferrer noopener nofollow"
-                >
-                    Lean incremental Merkle trees
-                </a>{" "}
-                in which each leaf contains an identity commitment for a user. Groups can be abstracted to represent
-                events, polls, or organizations.
-            </p>
-
-            <div className="divider"></div>
-
-            <div className="text-top">
-                <h3>Group users ({_users.length})</h3>
-                <button className="button-link" onClick={refreshUsers}>
-                    Refresh
-                </button>
-            </div>
-
-            <div>
-                <button
-                    className="button"
-                    onClick={joinGroup}
-                    disabled={_loading || !_identity || userHasJoined(_identity)}
-                >
-                    <span>Join group</span>
-                    {_loading && <div className="loader"></div>}
-                </button>
-            </div>
-
-            {_users.length > 0 && (
-                <div>
-                    {_users.map((user, i) => (
-                        <div key={i}>
-                            <p className="box box-text">{user.toString()}</p>
-                        </div>
-                    ))}
-                </div>
-            )}
-
-            <div className="divider"></div>
-
-            <Stepper
-                step={2}
-                onPrevClick={() => router.push("/")}
-                onNextClick={_identity && userHasJoined(_identity) ? () => router.push("/proofs") : undefined}
-            />
-        </>
-    )
-}

packages/cli-template-monorepo-ethers/apps/web-app/src/app/layout.tsx

@@ -1,8 +1,10 @@
 import PageContainer from "@/components/PageContainer"
 import type { Metadata } from "next"
-import { Inter } from "next/font/google"
+import { LogContextProvider } from "@/context/LogContext"
+import { SemaphoreContextProvider } from "@/context/SemaphoreContext"
 import "./globals.css"
 
+import { Inter } from "next/font/google"
 const inter = Inter({ subsets: ["latin"] })
 
 export const metadata: Metadata = {
@@ -32,8 +34,20 @@ export default function RootLayout({
 }>) {
     return (
         <html lang="en" suppressHydrationWarning>
+            <head>
+                <link rel="preconnect" href="https://fonts.googleapis.com"></link>
+                <link rel="preconnect" href="https://fonts.gstatic.com"></link>
+                <link
+                    href="https://fonts.googleapis.com/css2?family=Outfit:wght@100..900&display=swap"
+                    rel="stylesheet"
+                ></link>
+            </head>
             <body suppressHydrationWarning className={inter.className}>
-                <PageContainer>{children}</PageContainer>
+                <SemaphoreContextProvider>
+                    <LogContextProvider>
+                        <PageContainer>{children}</PageContainer>
+                    </LogContextProvider>
+                </SemaphoreContextProvider>
             </body>
         </html>
     )

packages/cli-template-monorepo-ethers/apps/web-app/src/app/page.tsx

@@ -2,42 +2,42 @@
 
 import { Identity } from "@semaphore-protocol/core"
 import { useRouter } from "next/navigation"
-import { useCallback, useContext, useEffect, useState } from "react"
+import { useCallback, useEffect, useState } from "react"
 import Stepper from "../components/Stepper"
-import LogsContext from "../context/LogsContext"
+import { useLogContext } from "../context/LogContext"
 
 export default function IdentitiesPage() {
     const router = useRouter()
-    const { setLogs } = useContext(LogsContext)
+    const { setLog } = useLogContext()
     const [_identity, setIdentity] = useState<Identity>()
 
     useEffect(() => {
         const privateKey = localStorage.getItem("identity")
 
         if (privateKey) {
-            const identity = new Identity(privateKey)
+            const identity = Identity.import(privateKey)
 
             setIdentity(identity)
 
-            setLogs("Your Semaphore identity has been retrieved from the browser cache 👌🏽")
+            setLog("Your Semaphore identity has been retrieved from the browser cache 👌🏽")
         } else {
-            setLogs("Create your Semaphore identity 👆🏽")
+            setLog("Create your Semaphore identity 👆🏽")
         }
-    }, [setLogs])
+    }, [setLog])
 
     const createIdentity = useCallback(async () => {
         const identity = new Identity()
 
         setIdentity(identity)
 
-        localStorage.setItem("identity", identity.privateKey.toString())
+        localStorage.setItem("identity", identity.export())
 
-        setLogs("Your new Semaphore identity has just been created 🎉")
-    }, [setLogs])
+        setLog("Your new Semaphore identity has just been created 🎉")
+    }, [setLog])
 
     return (
         <>
-            <h2 className="font-size: 3rem;">Identities</h2>
+            <h2>Identities</h2>
 
             <p>
                 The identity of a user in the Semaphore protocol. A{" "}
@@ -59,35 +59,36 @@ export default function IdentitiesPage() {
                 public/private key pair and a commitment, used as the public identifier of the identity.
             </p>
 
-            <div className="divider"></div>
+            <div className="divider" />
 
-            <div className="text-top">
+            <div className="keys-header">
                 <h3>Identity</h3>
-                {_identity && (
-                    <button className="button-link" onClick={createIdentity}>
-                        New
-                    </button>
-                )}
             </div>
 
-            {_identity ? (
-                <div>
-                    <div className="box">
-                        <p className="box-text">Private Key: {_identity.privateKey.toString()}</p>
-                        <p className="box-text">Commitment: {_identity.commitment.toString()}</p>
-                    </div>
-                </div>
-            ) : (
-                <div>
-                    <button className="button" onClick={createIdentity}>
-                        Create identity
-                    </button>
+            {_identity && (
+                <div className="key-wrapper">
+                    <p>
+                        <b>Private Key (base64)</b>:<br /> {_identity.export()}
+                    </p>
+                    <p>
+                        <b>Public Key</b>:<br /> [{_identity.publicKey[0].toString()},{" "}
+                        {_identity.publicKey[1].toString()}]
+                    </p>
+                    <p>
+                        <b>Commitment</b>:<br /> {_identity.commitment.toString()}
+                    </p>
                 </div>
             )}
 
-            <div className="divider"></div>
+            <div>
+                <button className="button" onClick={createIdentity} type="button">
+                    Create identity
+                </button>
+            </div>
 
-            <Stepper step={1} onNextClick={_identity && (() => router.push("/groups"))} />
+            <div className="divider" />
+
+            <Stepper step={1} onNextClick={_identity && (() => router.push("/group"))} />
         </>
     )
 }

packages/cli-template-monorepo-ethers/apps/web-app/src/app/proofs/page.tsx

@@ -1,78 +1,94 @@
 "use client"
 
-import { Group, Identity, generateProof } from "@semaphore-protocol/core"
+import Stepper from "@/components/Stepper"
+import { useLogContext } from "@/context/LogContext"
+import { useSemaphoreContext } from "@/context/SemaphoreContext"
+import { generateProof, Group } from "@semaphore-protocol/core"
+import { encodeBytes32String, ethers } from "ethers"
 import { useRouter } from "next/navigation"
-import { useCallback, useContext, useEffect, useState } from "react"
+import { useCallback, useEffect, useMemo, useState } from "react"
 import Feedback from "../../../contract-artifacts/Feedback.json"
-import Stepper from "../../components/Stepper"
-import LogsContext from "../../context/LogsContext"
-import SemaphoreContext from "../../context/SemaphoreContext"
+import useSemaphoreIdentity from "@/hooks/useSemaphoreIdentity"
 
 export default function ProofsPage() {
     const router = useRouter()
-    const { setLogs } = useContext(LogsContext)
-    const { _users, _feedback, refreshFeedback, addFeedback } = useContext(SemaphoreContext)
+    const { setLog } = useLogContext()
+    const { _users, _feedback, refreshFeedback, addFeedback } = useSemaphoreContext()
     const [_loading, setLoading] = useState(false)
-    const [_identity, setIdentity] = useState<Identity>()
-
-    useEffect(() => {
-        const privateKey = localStorage.getItem("identity")
-
-        if (!privateKey) {
-            router.push("/")
-            return
-        }
-
-        setIdentity(new Identity(privateKey))
-    }, [router])
+    const { _identity } = useSemaphoreIdentity()
 
     useEffect(() => {
         if (_feedback.length > 0) {
-            setLogs(`${_feedback.length} feedback retrieved from the group 🤙🏽`)
+            setLog(`${_feedback.length} feedback retrieved from the group 🤙🏽`)
         }
-    }, [_feedback, setLogs])
+    }, [_feedback, setLog])
+
+    const feedback = useMemo(() => [..._feedback].reverse(), [_feedback])
 
     const sendFeedback = useCallback(async () => {
         if (!_identity) {
             return
         }
 
-        if (typeof process.env.NEXT_PUBLIC_GROUP_ID !== "string") {
-            throw new Error("Please, define NEXT_PUBLIC_GROUP_ID in your .env file")
-        }
-
         const feedback = prompt("Please enter your feedback:")
 
         if (feedback && _users) {
             setLoading(true)
 
-            setLogs(`Posting your anonymous feedback...`)
+            setLog(`Posting your anonymous feedback...`)
 
             try {
                 const group = new Group(_users)
 
-                const { points, merkleTreeDepth, merkleTreeRoot, nullifier, message } = await generateProof(
+                const message = encodeBytes32String(feedback)
+
+                const { points, merkleTreeDepth, merkleTreeRoot, nullifier } = await generateProof(
                     _identity,
                     group,
-                    feedback,
+                    message,
                     process.env.NEXT_PUBLIC_GROUP_ID as string
                 )
 
-                let response: any
-
-                if (process.env.OPENZEPPELIN_AUTOTASK_WEBHOOK) {
-                    response = await fetch(process.env.OPENZEPPELIN_AUTOTASK_WEBHOOK, {
+                let feedbackSent: boolean = false
+                const params = [merkleTreeDepth, merkleTreeRoot, nullifier, message, points]
+                if (process.env.NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK) {
+                    const response = await fetch(process.env.NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK, {
                         method: "POST",
                         headers: { "Content-Type": "application/json" },
                         body: JSON.stringify({
                             abi: Feedback.abi,
-                            address: process.env.FEEDBACK_CONTRACT_ADDRESS,
+                            address: process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS,
                             functionName: "sendFeedback",
-                            functionParameters: [merkleTreeDepth, merkleTreeRoot, nullifier, message, points]
+                            functionParameters: params
                         })
                     })
+
+                    if (response.status === 200) {
+                        feedbackSent = true
+                    }
+                } else if (
+                    process.env.NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT &&
+                    process.env.NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID &&
+                    process.env.GELATO_RELAYER_API_KEY
+                ) {
+                    const iface = new ethers.Interface(Feedback.abi)
+                    const request = {
+                        chainId: process.env.NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID,
+                        target: process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS,
+                        data: iface.encodeFunctionData("sendFeedback", params),
+                        sponsorApiKey: process.env.GELATO_RELAYER_API_KEY
+                    }
+                    const response = await fetch(process.env.NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT, {
+                        method: "POST",
+                        headers: { "Content-Type": "application/json" },
+                        body: JSON.stringify(request)
+                    })
+
+                    if (response.status === 201) {
+                        feedbackSent = true
+                    }
                 } else {
-                    response = await fetch("api/feedback", {
+                    const response = await fetch("api/feedback", {
                         method: "POST",
                         headers: { "Content-Type": "application/json" },
                         body: JSON.stringify({
@@ -83,24 +99,28 @@ export default function ProofsPage() {
                             points
                         })
                     })
+
+                    if (response.status === 200) {
+                        feedbackSent = true
+                    }
                 }
 
-                if (response.status === 200) {
+                if (feedbackSent) {
                     addFeedback(feedback)
 
-                    setLogs(`Your feedback has been posted 🎉`)
+                    setLog(`Your feedback has been posted 🎉`)
                 } else {
-                    setLogs("Some error occurred, please try again!")
+                    setLog("Some error occurred, please try again!")
                 }
             } catch (error) {
                 console.error(error)
 
-                setLogs("Some error occurred, please try again!")
+                setLog("Some error occurred, please try again!")
             } finally {
                 setLoading(false)
             }
         }
-    }, [_identity, _users, addFeedback, setLogs])
+    }, [_identity, _users, addFeedback, setLoading, setLog])
 
     return (
         <>
@@ -122,22 +142,23 @@ export default function ProofsPage() {
             <div className="divider"></div>
 
             <div className="text-top">
-                <h3>Feedback messages ({_feedback.length})</h3>
-                <button className="button-link" onClick={refreshFeedback}>
+                <h3>Feedback ({_feedback.length})</h3>
+                <button className="refresh-button" onClick={refreshFeedback}>
+                    <span className="refresh-span">
+                        <svg viewBox="0 0 24 24" focusable="false" className="refresh-icon">
+                            <path
+                                fill="currentColor"
+                                d="M5.463 4.43301C7.27756 2.86067 9.59899 1.99666 12 2.00001C17.523 2.00001 22 6.47701 22 12C22 14.136 21.33 16.116 20.19 17.74L17 12H20C20.0001 10.4316 19.5392 8.89781 18.6747 7.58927C17.8101 6.28072 16.5799 5.25517 15.1372 4.64013C13.6944 4.0251 12.1027 3.84771 10.56 4.13003C9.0172 4.41234 7.59145 5.14191 6.46 6.22801L5.463 4.43301ZM18.537 19.567C16.7224 21.1393 14.401 22.0034 12 22C6.477 22 2 17.523 2 12C2 9.86401 2.67 7.88401 3.81 6.26001L7 12H4C3.99987 13.5684 4.46075 15.1022 5.32534 16.4108C6.18992 17.7193 7.42007 18.7449 8.86282 19.3599C10.3056 19.9749 11.8973 20.1523 13.44 19.87C14.9828 19.5877 16.4085 18.8581 17.54 17.772L18.537 19.567Z"
+                            ></path>
+                        </svg>
+                    </span>
                     Refresh
                 </button>
             </div>
 
-            <div>
-                <button className="button" onClick={sendFeedback} disabled={_loading}>
-                    <span>Send Feedback</span>
-                    {_loading && <div className="loader"></div>}
-                </button>
-            </div>
-
-            {_feedback.length > 0 && (
-                <div>
-                    {_feedback.map((f, i) => (
+            {feedback.length > 0 && (
+                <div className="feedback-wrapper">
+                    {feedback.map((f, i) => (
                         <div key={i}>
                             <p className="box box-text">{f}</p>
                         </div>
@@ -145,9 +166,16 @@ export default function ProofsPage() {
                 </div>
             )}
 
+            <div className="send-feedback-button">
+                <button className="button" onClick={sendFeedback} disabled={_loading}>
+                    <span>Send Feedback</span>
+                    {_loading && <div className="loader"></div>}
+                </button>
+            </div>
+
             <div className="divider"></div>
 
-            <Stepper step={3} onPrevClick={() => router.push("/groups")} />
+            <Stepper step={3} onPrevClick={() => router.push("/group")} />
         </>
     )
 }

packages/cli-template-monorepo-ethers/apps/web-app/src/components/PageContainer.tsx

@@ -1,12 +1,8 @@
 "use client"
 
-import LogsContext from "@/context/LogsContext"
-import SemaphoreContext from "@/context/SemaphoreContext"
-import useSemaphore from "@/hooks/useSemaphore"
+import { useLogContext } from "@/context/LogContext"
 import shortenString from "@/utils/shortenString"
-import { SupportedNetwork } from "@semaphore-protocol/utils"
 import { usePathname } from "next/navigation"
-import { useEffect, useState } from "react"
 import Link from "next/link"
 
 export default function PageContainer({
@@ -15,15 +11,9 @@ export default function PageContainer({
     children: React.ReactNode
 }>) {
     const pathname = usePathname()
-    const semaphore = useSemaphore()
-    const [_logs, setLogs] = useState<string>("")
+    const { log } = useLogContext()
 
-    useEffect(() => {
-        semaphore.refreshUsers()
-        semaphore.refreshFeedback()
-    }, [])
-
-    function getExplorerLink(network: SupportedNetwork, address: string) {
+    function getExplorerLink(network: string, address: string) {
         switch (network) {
             case "sepolia":
                 return `https://sepolia.etherscan.io/address/${address}`
@@ -35,7 +25,7 @@ export default function PageContainer({
     }
 
     return (
-        <div>
+        <>
             <div className="header">
                 <Link href="/" className="header-left">
                     Feedback
@@ -43,7 +33,7 @@ export default function PageContainer({
                 <div className="header-right">
                     <a
                         href={getExplorerLink(
-                            process.env.NEXT_PUBLIC_DEFAULT_NETWORK as SupportedNetwork,
+                            process.env.NEXT_PUBLIC_DEFAULT_NETWORK as string,
                             process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS as string
                         )}
                         target="_blank"
@@ -52,47 +42,34 @@ export default function PageContainer({
                         <div>{shortenString(process.env.NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS as string, [6, 4])}</div>
                     </a>
                     <a
-                        href="https://github.com/semaphore-protocol/semaphore"
+                        href="https://github.com/semaphore-protocol/semaphore/tree/main/packages/cli-template-monorepo-ethers"
                         target="_blank"
                         rel="noreferrer noopener nofollow"
                     >
-                        <svg
-                            xmlns="http://www.w3.org/2000/svg"
-                            width="24"
-                            height="24"
-                            viewBox="0 0 24 24"
-                            fill="none"
-                            stroke="currentColor"
-                            strokeWidth="2"
-                            strokeLinecap="round"
-                            strokeLinejoin="round"
-                            className="feather feather-github"
-                        >
-                            <path d="M9 19c-5 1.5-5-2.5-7-3m14 6v-3.87a3.37 3.37 0 0 0-.94-2.61c3.14-.35 6.44-1.54 6.44-7A5.44 5.44 0 0 0 20 4.77 5.07 5.07 0 0 0 19.91 1S18.73.65 16 2.48a13.38 13.38 0 0 0-7 0C6.27.65 5.09 1 5.09 1A5.07 5.07 0 0 0 5 4.77a5.44 5.44 0 0 0-1.5 3.78c0 5.42 3.3 6.61 6.44 7A3.37 3.37 0 0 0 9 18.13V22"></path>
-                        </svg>
+                        <button type="button" className="github-button" aria-label="Github repository">
+                            <svg
+                                height="32"
+                                aria-hidden="true"
+                                viewBox="0 0 24 24"
+                                version="1.1"
+                                width="32"
+                                data-view-component="true"
+                            >
+                                <path d="M12.5.75C6.146.75 1 5.896 1 12.25c0 5.089 3.292 9.387 7.863 10.91.575.101.79-.244.79-.546 0-.273-.014-1.178-.014-2.142-2.889.532-3.636-.704-3.866-1.35-.13-.331-.69-1.352-1.18-1.625-.402-.216-.977-.748-.014-.762.906-.014 1.553.834 1.769 1.179 1.035 1.74 2.688 1.25 3.349.948.1-.747.402-1.25.733-1.538-2.559-.287-5.232-1.279-5.232-5.678 0-1.25.445-2.285 1.178-3.09-.115-.288-.517-1.467.115-3.048 0 0 .963-.302 3.163 1.179.92-.259 1.897-.388 2.875-.388.977 0 1.955.13 2.875.388 2.2-1.495 3.162-1.179 3.162-1.179.633 1.581.23 2.76.115 3.048.733.805 1.179 1.825 1.179 3.09 0 4.413-2.688 5.39-5.247 5.678.417.36.776 1.05.776 2.128 0 1.538-.014 2.774-.014 3.162 0 .302.216.662.79.547C20.709 21.637 24 17.324 24 12.25 24 5.896 18.854.75 12.5.75Z"></path>
+                            </svg>
+                        </button>
                     </a>
                 </div>
             </div>
 
-            <div className="container">
-                <SemaphoreContext.Provider value={semaphore}>
-                    <LogsContext.Provider
-                        value={{
-                            _logs,
-                            setLogs
-                        }}
-                    >
-                        {children}
-                    </LogsContext.Provider>
-                </SemaphoreContext.Provider>
-            </div>
+            <div className="container">{children}</div>
 
-            <div className="divider-footer"></div>
+            <div className="divider-footer" />
 
             <div className="footer">
-                {_logs.endsWith("...")}
-                <p>{_logs || `Current step: ${pathname}`}</p>
+                {log.endsWith("...")}
+                <p>{log || `Current step: ${pathname}`}</p>
             </div>
-        </div>
+        </>
     )
 }

packages/cli-template-monorepo-ethers/apps/web-app/src/components/Stepper.tsx

@@ -1,3 +1,5 @@
+"use client"
+
 export type StepperProps = {
     step: number
     onPrevClick?: () => void
@@ -8,21 +10,47 @@ export default function Stepper({ step, onPrevClick, onNextClick }: StepperProps
     return (
         <div className="stepper">
             {onPrevClick !== undefined ? (
-                <button className="button-stepper" disabled={!onPrevClick} onClick={onPrevClick || undefined}>
+                <button
+                    className="button-stepper"
+                    disabled={!onPrevClick}
+                    onClick={onPrevClick || undefined}
+                    type="button"
+                >
+                    <span className="stepper-icon left-pad">
+                        <svg viewBox="0 0 24 24" focusable="false">
+                            <path
+                                fill="currentColor"
+                                d="M16.2425 6.34317L14.8283 4.92896L7.75732 12L14.8284 19.0711L16.2426 17.6569L10.5857 12L16.2425 6.34317Z"
+                            ></path>
+                        </svg>
+                    </span>
                     Prev
                 </button>
             ) : (
-                <span></span>
+                <button className="button-stepper"></button>
             )}
 
             <p>{step.toString()}/3</p>
 
             {onNextClick !== undefined ? (
-                <button className="button-stepper" disabled={!onNextClick} onClick={onNextClick || undefined}>
+                <button
+                    className="button-stepper"
+                    disabled={!onNextClick}
+                    onClick={onNextClick || undefined}
+                    type="button"
+                >
                     Next
+                    <span className="stepper-icon right-pad">
+                        <svg viewBox="0 0 24 24" focusable="false">
+                            <path
+                                fill="currentColor"
+                                d="M10.5859 6.34317L12.0001 4.92896L19.0712 12L12.0001 19.0711L10.5859 17.6569L16.2428 12L10.5859 6.34317Z"
+                            ></path>
+                        </svg>
+                    </span>
                 </button>
             ) : (
-                <span></span>
+                <span className="button-stepper" />
             )}
         </div>
     )

packages/cli-template-monorepo-ethers/apps/web-app/src/context/LogContext.tsx

@@ -0,0 +1,37 @@
+"use client"
+
+import React, { createContext, ReactNode, useContext, useState } from "react"
+
+export type LogContextType = {
+    log: string
+    setLog: (logs: string) => void
+}
+
+const LogContext = createContext<LogContextType | null>(null)
+
+interface ProviderProps {
+    children: ReactNode
+}
+
+export const LogContextProvider: React.FC<ProviderProps> = ({ children }) => {
+    const [log, setLog] = useState<string>("")
+
+    return (
+        <LogContext.Provider
+            value={{
+                log,
+                setLog
+            }}
+        >
+            {children}
+        </LogContext.Provider>
+    )
+}
+
+export const useLogContext = () => {
+    const context = useContext(LogContext)
+    if (context === null) {
+        throw new Error("LogContext must be used within a LogContextProvider")
+    }
+    return context
+}

packages/cli-template-monorepo-ethers/apps/web-app/src/context/LogsContext.ts

@@ -1,11 +0,0 @@
-import React from "react"
-
-export type LogsContextType = {
-    _logs: string
-    setLogs: (logs: string) => void
-}
-
-export default React.createContext<LogsContextType>({
-    _logs: "",
-    setLogs: (logs: string) => logs
-})

packages/cli-template-monorepo-ethers/apps/web-app/src/context/SemaphoreContext.ts

@@ -1,19 +0,0 @@
-import React from "react"
-
-export type SemaphoreContextType = {
-    _users: string[]
-    _feedback: string[]
-    refreshUsers: () => Promise<void>
-    addUser: (user: string) => void
-    refreshFeedback: () => Promise<void>
-    addFeedback: (feedback: string) => void
-}
-
-export default React.createContext<SemaphoreContextType>({
-    _users: [],
-    _feedback: [],
-    refreshUsers: () => Promise.resolve(),
-    addUser: () => {},
-    refreshFeedback: () => Promise.resolve(),
-    addFeedback: () => {}
-})

packages/cli-template-monorepo-ethers/apps/web-app/src/context/SemaphoreContext.tsx

@@ -0,0 +1,94 @@
+"use client"
+
+import React, { createContext, ReactNode, useCallback, useContext, useEffect, useState } from "react"
+import { SemaphoreEthers } from "@semaphore-protocol/data"
+import { decodeBytes32String, toBeHex } from "ethers"
+
+export type SemaphoreContextType = {
+    _users: string[]
+    _feedback: string[]
+    refreshUsers: () => Promise<void>
+    addUser: (user: string) => void
+    refreshFeedback: () => Promise<void>
+    addFeedback: (feedback: string) => void
+}
+
+const SemaphoreContext = createContext<SemaphoreContextType | null>(null)
+
+interface ProviderProps {
+    children: ReactNode
+}
+
+const ethereumNetwork =
+    process.env.NEXT_PUBLIC_DEFAULT_NETWORK === "localhost"
+        ? "http://127.0.0.1:8545"
+        : process.env.NEXT_PUBLIC_DEFAULT_NETWORK
+
+export const SemaphoreContextProvider: React.FC<ProviderProps> = ({ children }) => {
+    const [_users, setUsers] = useState<any[]>([])
+    const [_feedback, setFeedback] = useState<string[]>([])
+
+    const refreshUsers = useCallback(async (): Promise<void> => {
+        const semaphore = new SemaphoreEthers(ethereumNetwork, {
+            address: process.env.NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS,
+            projectId: process.env.NEXT_PUBLIC_INFURA_API_KEY
+        })
+
+        const members = await semaphore.getGroupMembers(process.env.NEXT_PUBLIC_GROUP_ID as string)
+
+        setUsers(members.map((member) => member.toString()))
+    }, [])
+
+    const addUser = useCallback(
+        (user: any) => {
+            setUsers([..._users, user])
+        },
+        [_users]
+    )
+
+    const refreshFeedback = useCallback(async (): Promise<void> => {
+        const semaphore = new SemaphoreEthers(ethereumNetwork, {
+            address: process.env.NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS,
+            projectId: process.env.NEXT_PUBLIC_INFURA_API_KEY
+        })
+
+        const proofs = await semaphore.getGroupValidatedProofs(process.env.NEXT_PUBLIC_GROUP_ID as string)
+
+        setFeedback(proofs.map(({ message }: any) => decodeBytes32String(toBeHex(message, 32))))
+    }, [])
+
+    const addFeedback = useCallback(
+        (feedback: string) => {
+            setFeedback([..._feedback, feedback])
+        },
+        [_feedback]
+    )
+
+    useEffect(() => {
+        refreshUsers()
+        refreshFeedback()
+    }, [refreshFeedback, refreshUsers])
+
+    return (
+        <SemaphoreContext.Provider
+            value={{
+                _users,
+                _feedback,
+                refreshUsers,
+                addUser,
+                refreshFeedback,
+                addFeedback
+            }}
+        >
+            {children}
+        </SemaphoreContext.Provider>
+    )
+}
+
+export const useSemaphoreContext = () => {
+    const context = useContext(SemaphoreContext)
+    if (context === null) {
+        throw new Error("SemaphoreContext must be used within a SemaphoreContextProvider")
+    }
+    return context
+}

packages/cli-template-monorepo-ethers/apps/web-app/src/hooks/useSemaphore.ts

@@ -1,57 +0,0 @@
-import { SemaphoreEthers } from "@semaphore-protocol/data"
-import { decodeBytes32String, toBeHex } from "ethers"
-import { useCallback, useState } from "react"
-import { SemaphoreContextType } from "../context/SemaphoreContext"
-
-const ethereumNetwork =
-    process.env.NEXT_PUBLIC_DEFAULT_NETWORK === "localhost"
-        ? "http://127.0.0.1:8545"
-        : process.env.NEXT_PUBLIC_DEFAULT_NETWORK
-
-export default function useSemaphore(): SemaphoreContextType {
-    const [_users, setUsers] = useState<string[]>([])
-    const [_feedback, setFeedback] = useState<string[]>([])
-
-    const refreshUsers = useCallback(async (): Promise<void> => {
-        const semaphore = new SemaphoreEthers(ethereumNetwork, {
-            address: process.env.NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS
-        })
-
-        const members = await semaphore.getGroupMembers(process.env.NEXT_PUBLIC_GROUP_ID as string)
-
-        setUsers(members)
-    }, [])
-
-    const addUser = useCallback(
-        (user: any) => {
-            setUsers([..._users, user])
-        },
-        [_users]
-    )
-
-    const refreshFeedback = useCallback(async (): Promise<void> => {
-        const semaphore = new SemaphoreEthers(ethereumNetwork, {
-            address: process.env.NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS
-        })
-
-        const proofs = await semaphore.getGroupValidatedProofs(process.env.NEXT_PUBLIC_GROUP_ID as string)
-
-        setFeedback(proofs.map(({ message }: any) => decodeBytes32String(toBeHex(message, 32))))
-    }, [])
-
-    const addFeedback = useCallback(
-        (feedback: string) => {
-            setFeedback([..._feedback, feedback])
-        },
-        [_feedback]
-    )
-
-    return {
-        _users,
-        _feedback,
-        refreshUsers,
-        addUser,
-        refreshFeedback,
-        addFeedback
-    }
-}

packages/cli-template-monorepo-ethers/apps/web-app/src/hooks/useSemaphoreIdentity.ts

@@ -0,0 +1,23 @@
+import { useEffect, useState } from "react"
+import { Identity } from "@semaphore-protocol/core"
+import { useRouter } from "next/navigation"
+
+export default function useSemaphoreIdentity() {
+    const router = useRouter()
+    const [_identity, setIdentity] = useState<Identity>()
+
+    useEffect(() => {
+        const privateKey = localStorage.getItem("identity")
+
+        if (!privateKey) {
+            router.push("/")
+            return
+        }
+
+        setIdentity(new Identity(privateKey))
+    }, [router])
+
+    return {
+        _identity
+    }
+}

packages/cli-template-monorepo-ethers/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@semaphore-protocol/cli-template-monorepo-ethers",
-    "version": "4.1.0",
+    "version": "4.12.0",
     "description": "Semaphore Hardhat + Next.js + SemaphoreEthers template.",
     "license": "Unlicense",
     "files": [

packages/cli-template-monorepo-subgraph/apps/contracts/package.json

@@ -20,9 +20,9 @@
         "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
         "@nomicfoundation/hardhat-toolbox": "^4.0.0",
         "@nomicfoundation/hardhat-verify": "^2.0.0",
-        "@semaphore-protocol/core": "4.1.0",
-        "@semaphore-protocol/hardhat": "4.1.0",
-        "@semaphore-protocol/utils": "4.1.0",
+        "@semaphore-protocol/core": "4.12.0",
+        "@semaphore-protocol/hardhat": "4.12.0",
+        "@semaphore-protocol/utils": "4.12.0",
         "@typechain/ethers-v6": "^0.5.0",
         "@typechain/hardhat": "^9.0.0",
         "@types/chai": "^4.2.0",
@@ -38,7 +38,7 @@
         "eslint-config-airbnb-typescript": "^17.1.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-import": "^2.29.1",
-        "ethers": "^6.4.0",
+        "ethers": "^6.13.4",
         "hardhat": "^2.20.1",
         "hardhat-gas-reporter": "^1.0.8",
         "prettier": "^3.2.5",
@@ -50,7 +50,7 @@
         "typescript": "^5.3.3"
     },
     "dependencies": {
-        "@semaphore-protocol/contracts": "4.1.0"
+        "@semaphore-protocol/contracts": "4.12.0"
     },
     "packageManager": "yarn@4.1.0"
 }

packages/cli-template-monorepo-subgraph/apps/web-app/.env.development

@@ -1,4 +1,4 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=localhost
-NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9
+NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0
 NEXT_PUBLIC_GROUP_ID=0

packages/cli-template-monorepo-subgraph/apps/web-app/.env.production

@@ -1,5 +1,8 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=sepolia
+NEXT_PUBLIC_INFURA_API_KEY=abf67af1010b4b8d877e04244f1eac3d
 NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x1e0d7FF1610e480fC93BdEC510811ea2Ba6d7c2f
 NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK=https://api.defender.openzeppelin.com/actions/20fce2ae-844b-4ec0-a6a2-90a3350a9d2c/runs/webhook/303216d1-fa7d-4fca-8c5b-7ba1ba544fc7/2T7i9xrkZA5j37hoaQLUuw
+NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT=https://api.gelato.digital/relays/v2/sponsored-call
+NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID=11155111
 NEXT_PUBLIC_GROUP_ID=

packages/cli-template-monorepo-subgraph/apps/web-app/.gitignore

@@ -1,5 +1,8 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
+# testing
+/coverage
+
 # next.js
 /.next/
 /out/
@@ -7,3 +10,18 @@
 # production
 /build
 
+# misc
+.DS_Store
+*.pem
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# Auto Generated PWA files
+public/sw.js
+public/workbox-*.js
+public/worker-*.js
+public/sw.js.map
+public/workbox-*.js.map
+public/worker-*.js.map

packages/cli-template-monorepo-subgraph/apps/web-app/contract-artifacts/Feedback.json

@@ -9,11 +9,6 @@
                     "internalType": "address",
                     "name": "semaphoreAddress",
                     "type": "address"
-                },
-                {
-                    "internalType": "uint256",
-                    "name": "_groupId",
-                    "type": "uint256"
                 }
             ],
             "stateMutability": "nonpayable",
@@ -92,8 +87,8 @@
             "type": "function"
         }
     ],
-    "bytecode": "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",
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     "linkReferences": {},
     "deployedLinkReferences": {}
 }

packages/cli-template-monorepo-subgraph/apps/web-app/next.config.mjs

@@ -14,7 +14,8 @@ const nextConfig = withPWA({
 })({
     env: {
         INFURA_API_KEY: process.env.INFURA_API_KEY,
-        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY
+        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY,
+        GELATO_RELAYER_API_KEY: process.env.GELATO_RELAYER_API_KEY
     }
 })
 

packages/cli-template-monorepo-subgraph/apps/web-app/package.json

@@ -9,10 +9,10 @@
         "lint": "next lint"
     },
     "dependencies": {
-        "@semaphore-protocol/core": "4.1.0",
-        "@semaphore-protocol/data": "4.1.0",
-        "@semaphore-protocol/utils": "4.1.0",
-        "ethers": "^6.11.1",
+        "@semaphore-protocol/core": "4.12.0",
+        "@semaphore-protocol/data": "4.12.0",
+        "@semaphore-protocol/utils": "4.12.0",
+        "ethers": "^6.13.4",
         "next": "14.1.0",
         "next-pwa": "^5.6.0",
         "react": "^18",