fix: fallback for testnets

modules/web3/web3-provider/sdk-legacy.tsx

@@ -7,6 +7,7 @@ import { ProviderSDK } from '@lido-sdk/react';
 import { useLidoSDK } from './lido-sdk';
 import { config } from 'config';
 import { isSDKSupportedL2Chain } from 'consts/chains';
+import { useMainnetStaticRpcProvider } from 'shared/hooks/use-mainnet-static-rpc-provider';
 
 // Stabilizes network detection to prevent repeated chainId calls
 class EthersToViemProvider extends Web3Provider {
@@ -61,12 +62,14 @@ export const SDKLegacyProvider = ({ children }: PropsWithChildren) => {
     );
   }, [onlyL1chainId, onlyL1publicClient]);
 
+  // Fallback for when mainnet is not present in supported chains
+  const staticMainnetProvider = useMainnetStaticRpcProvider();
+
   const providerMainnetRpc = useMemo(() => {
-    return (
-      publicMainnetClient &&
-      new EthersToViemProvider(publicMainnetClient.transport, 1)
-    );
-  }, [publicMainnetClient]);
+    return publicMainnetClient
+      ? new EthersToViemProvider(publicMainnetClient.transport, 1)
+      : staticMainnetProvider;
+  }, [publicMainnetClient, staticMainnetProvider]);
 
   return (
     // @ts-expect-error Property children does not exist on type

package.json

@@ -69,14 +69,14 @@
     "react-hook-form": "^7.45.2",
     "react-is": "^18.2.0",
     "react-transition-group": "^4.4.2",
-    "reef-knot": "5.7.4",
+    "reef-knot": "5.7.5",
     "styled-components": "^5.3.5",
     "swr": "^1.3.0",
     "tiny-async-pool": "^1.2.0",
     "tiny-invariant": "^1.1.0",
     "uuid": "^8.3.2",
-    "viem": "2.21.25",
-    "wagmi": "2.12.17"
+    "viem": "2.21.40",
+    "wagmi": "2.12.25"
   },
   "devDependencies": {
     "@commitlint/cli": "^17.4.4",