feat(store-indexer): use fastify, move trpc to /trpc (#1232)

Co-authored-by: Will Cory <willcory10@gmail.com>

.changeset/fifty-suits-shout.md

@@ -0,0 +1,22 @@
+---
+"@latticexyz/store-indexer": major
+---
+
+Adds a [Fastify](https://fastify.dev/) server in front of tRPC and puts tRPC endpoints under `/trpc` to make way for other top-level endpoints (e.g. [tRPC panel](https://github.com/iway1/trpc-panel) or other API frontends like REST or gRPC).
+
+If you're using `@latticexyz/store-sync` packages with an indexer (either `createIndexerClient` or `indexerUrl` argument of `syncToRecs`), then you'll want to update your indexer URL:
+
+```diff
+ createIndexerClient({
+-  url: "https://indexer.dev.linfra.xyz",
++  url: "https://indexer.dev.linfra.xyz/trpc",
+ });
+```
+
+```diff
+ syncToRecs({
+   ...
+-  indexerUrl: "https://indexer.dev.linfra.xyz",
++  indexerUrl: "https://indexer.dev.linfra.xyz/trpc",
+ });
+```

e2e/packages/sync-test/setup/startIndexer.ts

@@ -70,7 +70,7 @@ export function startIndexer(
   });
 
   return {
-    url: `http://127.0.0.1:${port}`,
+    url: `http://127.0.0.1:${port}/trpc`,
     doneSyncing,
     process: proc,
     kill: () =>

packages/store-indexer/bin/sqlite-indexer.ts

@@ -1,11 +1,11 @@
 import fs from "node:fs";
 import { z } from "zod";
-import cors from "cors";
 import { eq } from "drizzle-orm";
 import { drizzle } from "drizzle-orm/better-sqlite3";
 import Database from "better-sqlite3";
 import { createPublicClient, fallback, webSocket, http, Transport } from "viem";
-import { createHTTPServer } from "@trpc/server/adapters/standalone";
+import fastify from "fastify";
+import { fastifyTRPCPlugin } from "@trpc/server/adapters/fastify";
 import { createAppRouter } from "@latticexyz/store-sync/trpc-indexer";
 import { chainState, schemaVersion, syncToSqlite } from "@latticexyz/store-sync/sqlite";
 import { createStorageAdapter } from "../src/sqlite/createStorageAdapter";
@@ -108,13 +108,23 @@ combineLatest([latestBlockNumber$, blockStorageOperations$])
     console.log("all caught up");
   });
 
-const server = createHTTPServer({
-  middleware: cors(),
-  router: createAppRouter(),
-  createContext: async () => ({
-    storageAdapter: await createStorageAdapter(database),
-  }),
+// @see https://fastify.dev/docs/latest/
+const server = fastify({
+  maxParamLength: 5000,
 });
 
-const { port } = server.listen(env.PORT);
-console.log(`tRPC listening on http://127.0.0.1:${port}`);
+await server.register(import("@fastify/cors"));
+
+// @see https://trpc.io/docs/server/adapters/fastify
+server.register(fastifyTRPCPlugin, {
+  prefix: "/trpc",
+  trpcOptions: {
+    router: createAppRouter(),
+    createContext: async () => ({
+      storageAdapter: await createStorageAdapter(database),
+    }),
+  },
+});
+
+await server.listen({ port: env.PORT });
+console.log(`indexer server listening on http://127.0.0.1:${env.PORT}`);

packages/store-indexer/package.json

@@ -27,6 +27,7 @@
     "test": "tsc --noEmit --skipLibCheck"
   },
   "dependencies": {
+    "@fastify/cors": "^8.3.0",
     "@latticexyz/block-logs-stream": "workspace:*",
     "@latticexyz/common": "workspace:*",
     "@latticexyz/store": "workspace:*",
@@ -35,9 +36,9 @@
     "@trpc/server": "10.34.0",
     "@wagmi/chains": "^0.2.22",
     "better-sqlite3": "^8.4.0",
-    "cors": "^2.8.5",
     "debug": "^4.3.4",
     "drizzle-orm": "^0.27.0",
+    "fastify": "^4.21.0",
     "rxjs": "7.5.5",
     "superjson": "^1.12.4",
     "viem": "1.6.0",

packages/store-sync/src/trpc-indexer/createIndexerClient.ts

@@ -4,7 +4,7 @@ import type { AppRouter } from "./createAppRouter";
 
 type CreateIndexerClientOptions = {
   /**
-   * tRPC endpoint URL like `https://indexer.dev.linfra.xyz`.
+   * tRPC endpoint URL like `https://indexer.dev.linfra.xyz/trpc`.
    */
   url: string;
 };