fix(entrykit): require bundler (#3570)

Author: frolic

.changeset/long-dolls-jam.md

@@ -0,0 +1,21 @@
+---
+"@latticexyz/entrykit": patch
+---
+
+Using EntryKit without a configured bundler will now throw an error.
+
+Redstone, Garnet, Rhodolite, and Anvil chains come preconfigured. For other chains, you can a bundler RPC URL to your chain config via
+
+```ts
+import type { Chain } from "viem";
+
+const chain = {
+  ...
+  rpcUrls: {
+    ...
+    bundler: {
+      http: ["https://..."],
+    },
+  },
+} as const satisfies Chain;
+```

.changeset/shy-adults-train.md

@@ -0,0 +1,5 @@
+---
+"@latticexyz/common": patch
+---
+
+Added bundler RPC URL to Garnet chain config.

packages/common/src/chains/garnet.ts

@@ -3,6 +3,10 @@ import type { MUDChain } from "./types";
 
 export const garnet = {
   ...garnetConfig,
+  rpcUrls: {
+    ...garnetConfig.rpcUrls,
+    bundler: garnetConfig.rpcUrls.default,
+  },
   iconUrls: ["https://redstone.xyz/chain-icons/garnet.png"],
   indexerUrl: "https://indexer.mud.garnetchain.com",
 } as const satisfies MUDChain;

packages/entrykit/src/EntryKitConfigProvider.tsx

@@ -4,6 +4,7 @@ import { RainbowKitProvider, midnightTheme } from "@rainbow-me/rainbowkit";
 import { EntryKitConfig } from "./config/output";
 import { Chain } from "viem";
 import { useChains } from "wagmi";
+import { getBundlerTransport } from "./getBundlerTransport";
 
 type ContextValue = EntryKitConfig & {
   chain: Chain;
@@ -27,6 +28,9 @@ export function EntryKitConfigProvider({ config, children }: Props) {
   const chain = chains.find(({ id }) => id === config.chainId);
   if (!chain) throw new Error(`Could not find configured chain for chain ID ${config.chainId}.`);
 
+  // This throws when no we can't find a bundler to talk to, so use it to validate the chain.
+  getBundlerTransport(chain);
+
   return (
     <RainbowKitProvider
       // Prevent RainbowKit/Wagmi trying to switch chains after connection