From ae22bd7be95ca61ba34f9ad0cdb7b712c62b0d37 Mon Sep 17 00:00:00 2001
From: cedoor <me@cedoor.dev>
Date: Fri, 18 Feb 2022 15:45:13 +0100
Subject: [PATCH] chore: add kovan & arbitrum networks

Former-commit-id: 7d88065862fa289ef41de62e04b82c30038cb186
---
 .env.example      |  2 ++
 hardhat.config.ts | 26 ++++++++++++++++++++++----
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/.env.example b/.env.example
index 9b91f04b..993641a6 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,4 @@
+INFURA_API_KEY=
+BACKEND_PRIVATE_KEY=
 COINMARKETCAP_API_KEY=
 REPORT_GAS=false
diff --git a/hardhat.config.ts b/hardhat.config.ts
index a1e86da3..26946c48 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -4,6 +4,7 @@ import "@typechain/hardhat"
 import { config as dotenvConfig } from "dotenv"
 import "hardhat-gas-reporter"
 import { HardhatUserConfig } from "hardhat/config"
+import { NetworksUserConfig } from "hardhat/types"
 import { resolve } from "path"
 import "solidity-coverage"
 import { config } from "./package.json"
@@ -13,6 +14,26 @@ import "./tasks/deploy-verifier"
 
 dotenvConfig({ path: resolve(__dirname, "./.env") })
 
+function getNetworks(): NetworksUserConfig | undefined {
+  if (process.env.INFURA_API_KEY && process.env.BACKEND_PRIVATE_KEY) {
+    const infuraApiKey = process.env.INFURA_API_KEY
+    const accounts = [`0x${process.env.BACKEND_PRIVATE_KEY}`]
+
+    return {
+      kovan: {
+        url: `https://kovan.infura.io/v3/${infuraApiKey}`,
+        chainId: 42,
+        accounts
+      },
+      arbitrum: {
+        url: "https://arb1.arbitrum.io/rpc",
+        chainId: 42161,
+        accounts
+      }
+    }
+  }
+}
+
 const hardhatConfig: HardhatUserConfig = {
   solidity: config.solidity,
   paths: {
@@ -26,10 +47,7 @@ const hardhatConfig: HardhatUserConfig = {
       chainId: 1337,
       allowUnlimitedContractSize: true
     },
-    localhost: {
-      url: "http://localhost:8545",
-      allowUnlimitedContractSize: true
-    }
+    ...getNetworks()
   },
   gasReporter: {
     currency: "USD",