fix: replace base rpc urls with public rpcs (#7259)

* fix: replace base rpc urls with public rpcs

* fix: designation of safe vs fallback

* fix: remove duplicate

.env

@@ -4,7 +4,6 @@ REACT_APP_AMPLITUDE_PROXY_URL="https://api.uniswap.org/v1/amplitude-proxy"
 REACT_APP_AWS_API_REGION="us-east-2"
 REACT_APP_AWS_API_ENDPOINT="https://beta.api.uniswap.org/v1/graphql"
 REACT_APP_BNB_RPC_URL="https://rough-sleek-hill.bsc.quiknode.pro/413cc98cbc776cda8fdf1d0f47003583ff73d9bf"
-REACT_APP_BASE_MAINNET_RPC_URL="https://cool-white-diagram.base-mainnet.quiknode.pro/d8f036f35dfab2c68f32dfa822cd971e7a25a117/"
 REACT_APP_INFURA_KEY="4bf032f2d38a4ed6bb975b80d6340847"
 REACT_APP_MOONPAY_API="https://api.moonpay.com"
 REACT_APP_MOONPAY_LINK="https://us-central1-uniswap-mobile.cloudfunctions.net/signMoonpayLinkV2?platform=web&env=staging"

src/constants/networks.ts

@@ -8,10 +8,6 @@ const QUICKNODE_BNB_RPC_URL = process.env.REACT_APP_BNB_RPC_URL
 if (typeof QUICKNODE_BNB_RPC_URL === 'undefined') {
   throw new Error(`REACT_APP_BNB_RPC_URL must be a defined environment variable`)
 }
-const QUICKNODE_BASE_RPC_URL = process.env.REACT_APP_BASE_MAINNET_RPC_URL
-if (typeof QUICKNODE_BASE_RPC_URL === 'undefined') {
-  throw new Error(`REACT_APP_BASE_MAINNET_RPC_URL must be a defined environment variable`)
-}
 
 /**
  * Fallback JSON-RPC endpoints.
@@ -111,11 +107,13 @@ export const FALLBACK_URLS = {
   ],
   [ChainId.BASE]: [
     // "Safe" URLs
-    'https://mainnet.base.org',
-    // "Unsafe" URLs
-    QUICKNODE_BASE_RPC_URL,
-    'https://base-mainnet.blastapi.io/b5a802d8-151d-4443-90a7-699108dc4e01',
-    'https://svc.blockdaemon.com/base/mainnet/native?apiKey=zpka_1334e7c450464d06b6e33a972a7a4e57_75320f43',
+    'https://mainnet.base.org/',
+    'https://developer-access-mainnet.base.org/',
+    'https://base.gateway.tenderly.co',
+    'https://base.publicnode.com',
+    // "Fallback" URLs
+    'https://1rpc.io/base',
+    'https://base.meowrpc.com',
   ],
 }