added token balance from seed-graph (#380)

packages/backend/codegen.yml

@@ -39,3 +39,15 @@ generates:
           content: '/* eslint-disable */'
     config:
       avoidOptionals: true
+  ./src/lib/autogen/seedgraph-sdk.ts:
+    schema: 'https://api.thegraph.com/subgraphs/name/dan13ram/seed-graph'
+    documents:
+      - ./src/handlers/remote-schemas/resolvers/getTokenBalance/**/(!(*.d)).ts
+    plugins:
+      - typescript
+      - typescript-operations
+      - typescript-graphql-request
+      - add:
+          content: '/* eslint-disable */'
+    config:
+      avoidOptionals: true

packages/backend/src/config.ts

@@ -2,6 +2,7 @@ interface IConfig {
   port: number;
   graphqlURL: string;
   daoHausGraphqlURL: string;
+  seedGraphqlURL: string;
   adminKey: string;
   ipfsEndpoint: string;
   imgixToken: string;
@@ -28,6 +29,10 @@ export const CONFIG: IConfig = {
     process.env.GRAPHQL_URL,
     'http://localhost:8080/v1/graphql',
   ),
+  seedGraphqlURL: parseEnv(
+    process.env.SEED_GRAPHQL_URL,
+    'https://api.thegraph.com/subgraphs/name/dan13ram/seed-graph',
+  ),
   daoHausGraphqlURL: parseEnv(
     process.env.DAOHAUS_GRAPHQL_URL,
     'https://api.thegraph.com/subgraphs/name/odyssy-automaton/daohaus',

packages/backend/src/handlers/remote-schemas/resolvers/getTokenBalance/queries.ts

@@ -0,0 +1,11 @@
+import { gql } from 'graphql-request/dist';
+
+export const GetTokenBalance = gql`
+  query GetTokenBalance($address: String!) {
+    userTokens(where: { address: $address }) {
+      id
+      seedBalance
+      pSeedBalance
+    }
+  }
+`;

packages/backend/src/handlers/remote-schemas/resolvers/getTokenBalance/resolver.ts

@@ -0,0 +1,17 @@
+import { seedGraphClient } from '../../../../lib/seedGraphClient';
+import { QueryResolvers } from '../../autogen/types';
+
+export const getTokenBalance: QueryResolvers['getTokenBalance'] = async (
+  _,
+  { address },
+) => {
+  if (!address) return null;
+  const res = await seedGraphClient.GetTokenBalance({
+    address: address.toLowerCase(),
+  });
+
+  if (res && res.userTokens && res.userTokens.length > 0) {
+    return res.userTokens[0];
+  }
+  return null;
+};

packages/backend/src/handlers/remote-schemas/schema.ts

@@ -3,6 +3,7 @@ import { makeExecutableSchema } from 'graphql-tools';
 import { getBrightIdStatus } from './resolvers/brightId/resolver';
 import { getDaoHausMemberships } from './resolvers/daohaus/resolver';
 import { getBoxProfile } from './resolvers/getBoxProfile/resolver';
+import { getTokenBalance } from './resolvers/getTokenBalance/resolver';
 import { typeDefs } from './typeDefs';
 import { uuid } from './types/uuid';
 
@@ -11,6 +12,7 @@ const resolvers = {
     getBoxProfile,
     getDaoHausMemberships,
     getBrightIdStatus,
+    getTokenBalance,
   },
   uuid,
 };

packages/backend/src/handlers/remote-schemas/typeDefs.ts

@@ -7,6 +7,7 @@ export const typeDefs = gql`
     getBoxProfile(address: String): BoxProfile
     getDaoHausMemberships(memberAddress: String): [Member!]!
     getBrightIdStatus(contextId: uuid): BrightIdStatus
+    getTokenBalance(address: String): UserToken
   }
 
   type BrightIdStatus {
@@ -55,4 +56,10 @@ export const typeDefs = gql`
     exists: Boolean!
     kicked: Boolean
   }
+
+  type UserToken {
+    id: ID!
+    seedBalance: String!
+    pSeedBalance: String!
+  }
 `;

packages/backend/src/lib/seedGraphClient.ts

@@ -0,0 +1,6 @@
+import { GraphQLClient } from 'graphql-request';
+
+import { CONFIG } from '../config';
+import { getSdk } from './autogen/seedgraph-sdk';
+
+export const seedGraphClient = getSdk(new GraphQLClient(CONFIG.seedGraphqlURL));