feat: Add Robinhood chain and Robinhood chain testnet (#382)

* Add chain configuration for Robinhood chain and Robinhood chain testnet

* Add Robinhood chain and Robinhood chain testnet to site project

Author: jeffsmale90

packages/gator-permissions-snap/src/core/chainMetadata.ts

@@ -146,6 +146,10 @@ export const nameAndExplorerUrlByChainId: Record<
   0x64: { name: 'Gnosis', explorerUrl: 'https://gnosisscan.io' },
   0x82: { name: 'Unichain', explorerUrl: 'https://uniscan.xyz' },
   0x89: { name: 'Polygon Mainnet', explorerUrl: 'https://polygonscan.com' },
+  0x1237: {
+    name: 'Robinhood Chain',
+    explorerUrl: 'https://robinhoodchain.blockscout.com',
+  },
   0x2105: { name: 'Base', explorerUrl: 'https://basescan.org' },
   0xa4b1: { name: 'Arbitrum One', explorerUrl: 'https://arbiscan.io' },
   0xa4ba: {
@@ -173,6 +177,10 @@ export const nameAndExplorerUrlByChainId: Record<
     name: 'Gnosis Chiado Testnet',
     explorerUrl: 'https://gnosis-chiado.blockscout.com',
   },
+  0xb626: {
+    name: 'Robinhood Chain Testnet',
+    explorerUrl: 'https://explorer.testnet.chain.robinhood.com',
+  },
   0xe705: {
     name: 'Linea Sepolia Testnet',
     explorerUrl: 'https://sepolia.lineascan.build',

packages/site/.env.example

@@ -2,4 +2,5 @@
 VITE_KERNEL_SNAP_ORIGIN=local:http://localhost:8081
 VITE_GATOR_SNAP_ORIGIN=local:http://localhost:8082
 VITE_BUNDLER_RPC_URL=https://<bundler-url>
-VITE_SUPPORTED_CHAINS=11155111
+# Comma-separated chain IDs. Includes Robinhood Chain (4663) and Robinhood Chain Testnet (46630).
+VITE_SUPPORTED_CHAINS=11155111,4663,46630

packages/site/src/config/chains.ts

@@ -1,8 +1,62 @@
-import { extractChain } from 'viem';
+import { defineChain, extractChain } from 'viem';
 import type { Chain } from 'viem';
 import * as chains from 'viem/chains';
 
-const ALL_CHAINS = [...Object.values(chains)];
+/**
+ * Robinhood Chain is not yet included in viem/chains.
+ * Network details: https://docs.robinhood.com/chain/add-network-to-wallet/
+ */
+export const robinhoodChain = defineChain({
+  id: 4663,
+  name: 'Robinhood Chain',
+  nativeCurrency: {
+    name: 'Ether',
+    symbol: 'ETH',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://rpc.mainnet.chain.robinhood.com'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Robinhood Chain Explorer',
+      url: 'https://robinhoodchain.blockscout.com',
+    },
+  },
+});
+
+/**
+ * Robinhood Chain Testnet is not yet included in viem/chains.
+ * Network details: https://docs.robinhood.com/chain/add-network-to-wallet/
+ */
+export const robinhoodChainTestnet = defineChain({
+  id: 46630,
+  name: 'Robinhood Chain Testnet',
+  nativeCurrency: {
+    name: 'Ether',
+    symbol: 'ETH',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://rpc.testnet.chain.robinhood.com'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Robinhood Chain Testnet Explorer',
+      url: 'https://explorer.testnet.chain.robinhood.com',
+    },
+  },
+});
+
+const ALL_CHAINS = [
+  ...Object.values(chains),
+  robinhoodChain,
+  robinhoodChainTestnet,
+];
 
 const DEFAULT_CHAINS = [chains.sepolia];