Initial commit with 🏗️ Scaffold-ETH 2 @ 1.0.5

packages/nextjs/hooks/scaffold-eth/useSelectedNetwork.ts

@@ -0,0 +1,19 @@
+import scaffoldConfig from "~~/scaffold.config";
+import { useGlobalState } from "~~/services/store/store";
+import { AllowedChainIds } from "~~/utils/scaffold-eth";
+import { ChainWithAttributes, NETWORKS_EXTRA_DATA } from "~~/utils/scaffold-eth/networks";
+
+/**
+ * Given a chainId, retrives the network object from `scaffold.config`,
+ * if not found default to network set by `useTargetNetwork` hook
+ */
+export function useSelectedNetwork(chainId?: AllowedChainIds): ChainWithAttributes {
+  const globalTargetNetwork = useGlobalState(({ targetNetwork }) => targetNetwork);
+  const targetNetwork = scaffoldConfig.targetNetworks.find(targetNetwork => targetNetwork.id === chainId);
+
+  if (targetNetwork) {
+    return { ...targetNetwork, ...NETWORKS_EXTRA_DATA[targetNetwork.id] };
+  }
+
+  return globalTargetNetwork;
+}