feat: make RPC configurable via env vars

.env.example

@@ -1,3 +1,4 @@
 FORK_URL=
 NODE_ENV=
-STAKING_TEST_KEYS_PATH=
+STAKING_TEST_KEYS_PATH=
+DEV_RPC=

frontend/context/UserBalanceProvider.tsx

@@ -3,6 +3,9 @@ import { useInterval } from 'usehooks-ts';
 
 import { useAppInfo } from '@/hooks';
 import { EthersService } from '@/service';
+import { env } from "process";
+
+const RPC = env.DEV_RPC ? env.DEV_RPC : "https://rpc.gnosischain.com";
 
 export const UserBalanceContext = createContext<{
   balance: number;
@@ -15,10 +18,10 @@ export const UserBalanceProvider = ({ children }: PropsWithChildren) => {
   const [balance, setBalance] = useState<number>(0);
 
   const updateBalance = async () => {
-    const isRpcValid = await EthersService.checkRpc('http://localhost:8545');
+    const isRpcValid = await EthersService.checkRpc(RPC);
     if (userPublicKey && isRpcValid)
-      EthersService.getEthBalance(userPublicKey, 'http://localhost:8545').then(
-        (res) => setBalance(res),
+      EthersService.getEthBalance(userPublicKey, RPC).then(
+        (res) => setBalance(res)
       );
   };
 

frontend/service/Services.ts

@@ -1,5 +1,8 @@
 import { Deployment, Service, ServiceHash, ServiceTemplate } from '@/client';
 import { BACKEND_URL } from '@/constants';
+import { env } from "process"
+
+const RPC = env.DEV_RPC ? env.DEV_RPC : "https://rpc.gnosischain.com"
 
 /**
  * Get a single service from the backend
@@ -42,7 +45,7 @@ const createService = async ({
       deploy,
       configuration: {
         ...serviceTemplate.configuration,
-        rpc: 'http://localhost:8545',
+        rpc: RPC,
       },
     }),
     headers: {

operate/ledger/__init__.py

@@ -19,6 +19,7 @@
 
 """Ledger helpers."""
 
+import os
 import typing as t
 
 from operate.ledger.base import LedgerHelper
@@ -27,10 +28,10 @@
 from operate.types import ChainType, LedgerType
 
 
-ETHEREUM_RPC = "https://ethereum.publicnode.com"
-GNOSIS_RPC = "https://rpc.gnosischain.com"
-GOERLI_RPC = "https://ethereum-goerli.publicnode.com"
-SOLANA_RPC = "https://api.mainnet-beta.solana.com"
+ETHEREUM_RPC = os.environ.get("DEV_RPC", "https://ethereum.publicnode.com")
+GNOSIS_RPC = os.environ.get("DEV_RPC", "https://rpc.gnosischain.com")
+GOERLI_RPC = os.environ.get("DEV_RPC", "https://ethereum-goerli.publicnode.com")
+SOLANA_RPC = os.environ.get("DEV_RPC", "https://api.mainnet-beta.solana.com")
 
 
 DEFAULT_RPCS = {