Initial commit, most things work

src/trpc/server.ts

@@ -0,0 +1,30 @@
+import "server-only";
+
+import { createHydrationHelpers } from "@trpc/react-query/rsc";
+import { headers } from "next/headers";
+import { cache } from "react";
+
+import { type AppRouter, createCaller } from "@/server/api/root";
+import { createTRPCContext } from "@/server/api/trpc";
+import { createQueryClient } from "./query-client";
+
+/**
+ * This wraps the `createTRPCContext` helper and provides the required context for the tRPC API when
+ * handling a tRPC call from a React Server Component.
+ */
+const createContext = cache(async () => {
+	const heads = new Headers(await headers());
+	heads.set("x-trpc-source", "rsc");
+
+	return createTRPCContext({
+		headers: heads,
+	});
+});
+
+const getQueryClient = cache(createQueryClient);
+const caller = createCaller(createContext);
+
+export const { trpc: api, HydrateClient } = createHydrationHelpers<AppRouter>(
+	caller,
+	getQueryClient,
+);