tRPC 초기 설정

src/routes/trpc/[...trpc]/+server.ts

@@ -0,0 +1,15 @@
+import { fetchRequestHandler } from "@trpc/server/adapters/fetch";
+import { createContext } from "$trpc/init.server";
+import { appRouter } from "$trpc/router.server";
+import type { RequestHandler } from "./$types";
+
+const trpcHandler: RequestHandler = (event) =>
+  fetchRequestHandler({
+    endpoint: "/trpc",
+    req: event.request,
+    router: appRouter,
+    createContext: () => createContext(event),
+  });
+
+export const GET = trpcHandler;
+export const POST = trpcHandler;

src/trpc/client.ts

@@ -0,0 +1,23 @@
+import { createTRPCClient, httpBatchLink } from "@trpc/client";
+import { browser } from "$app/environment";
+import type { AppRouter } from "./router.server";
+
+const createClient = (fetch: typeof globalThis.fetch) =>
+  createTRPCClient<AppRouter>({
+    links: [
+      httpBatchLink({
+        url: "/trpc",
+        fetch,
+      }),
+    ],
+  });
+
+let browserClient: ReturnType<typeof createClient>;
+
+export const trpc = (fetch = globalThis.fetch) => {
+  const client = browserClient ?? createClient(fetch);
+  if (browser) {
+    browserClient ??= client;
+  }
+  return client;
+};

src/trpc/init.server.ts

@@ -0,0 +1,9 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import { initTRPC } from "@trpc/server";
+
+export const createContext = (event: RequestEvent) => event;
+
+const t = initTRPC.context<Awaited<ReturnType<typeof createContext>>>().create();
+
+export const router = t.router;
+export const publicProcedure = t.procedure;

src/trpc/router.server.ts

@@ -0,0 +1,13 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import type { inferRouterInputs, inferRouterOutputs } from "@trpc/server";
+import { createContext, router } from "./init.server";
+
+export const appRouter = router({
+  // TODO
+});
+
+export const createCaller = (event: RequestEvent) => appRouter.createCaller(createContext(event));
+
+export type AppRouter = typeof appRouter;
+export type RouterInputs = inferRouterInputs<AppRouter>;
+export type RouterOutputs = inferRouterOutputs<AppRouter>;