chore(api-reference) Add Chain Override file

Author: aditya520

apps/api-reference/src/components/EvmProvider/chain-overrides.ts

@@ -0,0 +1,78 @@
+import { defineChain } from "viem";
+import type { Chain } from "viem";
+
+/**
+ * Chain overrides for chains that are not available in viem's built-in chain list.
+ * These chains will take priority over viem's built-in chains when matching by chain ID.
+ *
+ * To add a new chain override:
+ * 1. Find the chain ID from EvmChains.json
+ * 2. Add a new defineChain entry with the following required fields:
+ *    - id: chainId. id in EvmChains.json is the name
+ *    - name: Chain display name
+ *    - nativeCurrency: { name, symbol, decimals }
+ *    - rpcUrls: { default: { http: ['...'] } }
+ *    - testnet: true/false (optional, defaults to false for mainnet)
+ *    - blockExplorers: { default: { name, url } } (optional)
+ */
+export const chainOverrides: readonly Chain[] = [
+  // Example chain override (remove or replace with actual chains):
+  // defineChain({
+  //   id: 7701,
+  //   name: 'Custom Chain Name',
+  //   nativeCurrency: {
+  //     name: 'Custom Token',
+  //     symbol: 'CTK',
+  //     decimals: 18,
+  //   },
+  //   rpcUrls: {
+  //     default: { http: ['https://rpc.example.com'] },
+  //   },
+  //   testnet: false,
+  //   blockExplorers: {
+  //     default: {
+  //       name: 'Custom Explorer',
+  //       url: 'https://explorer.example.com',
+  //     },
+  //   },
+  // }),
+  defineChain({
+    id: 999,
+    name: "Hyperliquid",
+    nativeCurrency: {
+      name: "Hyper",
+      symbol: "HYPE",
+      decimals: 18,
+    },
+    rpcUrls: {
+      default: { http: ["https://rpc.hyperliquid.xyz/evm"] },
+    },
+    testnet: false,
+    blockExplorers: {
+      default: {
+        name: "Hyperliquid",
+        url: "https://hyperevmscan.io/",
+      },
+    },
+  }),
+  defineChain({
+    id: 964,
+    name: "Bittensor",
+    nativeCurrency: {
+      name: "TAO",
+      symbol: "TAO",
+      decimals: 18,
+    },
+    rpcUrls: {
+      default: { http: ["https://bittensor-finney.api.onfinality.io/public"] },
+    },
+    testnet: false,
+    blockExplorers: {
+      default: {
+        name: "Bittensor",
+        url: "https://evm.taostats.io/",
+      },
+    },
+  }),
+];
+