docs: trpc now optional — prerequisite notes + conditional HTML

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-09 14:13:12 +02:00
parent c8116ac3f4
commit 1967cb36ec
10 changed files with 48 additions and 39 deletions

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@@ -1,6 +1,6 @@
# AGENTS.md — apps/web-next
Next.js 15 reference application using App Router. Demonstrates consuming feature packages via tRPC, using `@repo/core-trpc/next` for client setup, and importing UI components from `@repo/core-ui`.
Next.js 15 reference application using App Router. Demonstrates consuming feature packages via tRPC and importing UI components from `@repo/core-ui`. Both `@repo/core-trpc` and `@repo/core-ui` are optional packages — scaffold them with `pnpm turbo gen core-package trpc` / `ui` if needed.
## Purpose
@@ -24,40 +24,44 @@ pnpm dev --filter @repo/web-next # Next.js on port 3000
| File | Purpose |
|---|---|
| `src/app/layout.tsx` | Root layout — wraps app with `<TrpcProvider>` from `@repo/core-trpc/next` |
| `src/app/providers.tsx` | Client component for tRPC + React Query setup |
| `src/app/layout.tsx` | Root layout — wraps app with `<Providers>` |
| `src/app/providers.tsx` | Client component wrapper (add tRPC/React Query here after scaffolding `@repo/core-trpc`) |
| `src/app/page.tsx` | Home page — navigation + marketing content |
| `src/app/blog/[slug]/page.tsx` | Dynamic blog post route |
| `src/app/api/trpc/[trpc]/route.ts` | tRPC fetch adapter endpoint |
| `e2e/` | Playwright end-to-end tests |
## tRPC Setup
## tRPC Setup (optional)
The tRPC endpoint handler (in `src/app/api/trpc/[trpc]/route.ts`):
`@repo/core-trpc` is not installed by default. After scaffolding with `pnpm turbo gen core-package trpc`:
1. Create `src/app/api/trpc/[trpc]/route.ts`:
```typescript
import { fetchRequestHandler } from "@trpc/server/adapters/fetch";
import { appRouter } from "@repo/core-api";
import { bindAll } from "../../../../server/bind-production";
const handler = (req: Request) =>
fetchRequestHandler({
const handler = async (req: Request) => {
await bindAll();
return fetchRequestHandler({
endpoint: "/api/trpc",
req,
router: appRouter,
createContext: () => ({}),
});
};
export { handler as GET, handler as POST };
```
The provider (in `src/app/providers.tsx`):
2. Update `src/app/providers.tsx`:
```typescript
"use client";
import { TrpcProvider } from "@repo/core-trpc/next";
import { NextTrpcProvider } from "@repo/core-trpc/next";
export function Providers({ children }: React.ReactNode) {
return <TrpcProvider>{children}</TrpcProvider>;
export function Providers({ children }: { children: React.ReactNode }) {
return <NextTrpcProvider trpcUrl="/api/trpc">{children}</NextTrpcProvider>;
}
```
@@ -66,8 +70,8 @@ export function Providers({ children }: React.ReactNode) {
| Dependency | Purpose |
|---|---|
| `@repo/core-api` | `appRouter` for tRPC endpoint |
| `@repo/core-trpc/next` | Next.js tRPC client + provider |
| `@repo/core-ui` | Design system components |
| `@repo/core-trpc/next` | Next.js tRPC client + provider (optional — scaffold first) |
| `@repo/core-ui` | Design system components (optional — scaffold first) |
| `@repo/auth`, `@repo/blog`, etc. | Feature packages (indirectly via core-api) |
| `next` | Next.js 15 framework |
| `@trpc/server` | tRPC server (fetch adapter) |
@@ -103,5 +107,5 @@ Run: `pnpm test:e2e` starts the dev server and runs all `.spec.ts` files.
- **Feature packages:** `packages/{auth,blog,media,marketing-pages,navigation}/`
- **tRPC composition:** `packages/core-api/AGENTS.md`
- **tRPC client + provider:** `packages/core-trpc/AGENTS.md`
- **UI components:** `packages/core-ui/AGENTS.md`
- **tRPC client + provider (optional):** scaffold `@repo/core-trpc` first, then see `turbo/generators/templates/core-package/trpc/AGENTS.md.hbs`
- **UI components (optional):** scaffold `@repo/core-ui` first, then see `packages/core-ui/AGENTS.md`

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@@ -4,7 +4,7 @@ TanStack Start reference application using TanStack Router with file-based routi
## Purpose
Proof that features are framework-portable. This app consumes the exact same feature packages and tRPC routers as `apps/web-next`, but through TanStack Start's server/client architecture instead of Next.js App Router.
Proof that features are framework-portable. This app consumes the exact same feature packages as `apps/web-next`, but through TanStack Start's server/client architecture instead of Next.js App Router. Once `@repo/core-trpc` is scaffolded, it can use the same tRPC routers via `TanstackTrpcProvider`.
## Port: 3002
@@ -12,7 +12,7 @@ Proof that features are framework-portable. This app consumes the exact same fea
pnpm dev --filter @repo/web-tanstack # http://localhost:3002
```
Requires tRPC endpoint (from `apps/web-next` or another backend):
When `@repo/core-trpc` is installed, this app requires a tRPC endpoint (from `apps/web-next`):
```bash
pnpm dev --filter @repo/web-next # Serves tRPC at http://localhost:3000/api/trpc
@@ -23,7 +23,7 @@ pnpm dev --filter @repo/web-tanstack # http://localhost:3002
| File | Purpose |
|---|---|
| `src/routes/__root.tsx` | Root layout — wraps all routes with `<TrpcProvider>` from `@repo/core-trpc/tanstack` |
| `src/routes/__root.tsx` | Root layout — wraps all routes with `<Outlet />` (add `<TanstackTrpcProvider>` after scaffolding `@repo/core-trpc`) |
| `src/routes/index.tsx` | Home page (`/`) |
| `src/routes/blog/index.tsx` | Blog listing (`/blog`) |
| `src/routes/blog/$slug.tsx` | Dynamic blog post (`/blog/:slug`) |
@@ -45,30 +45,30 @@ Naming conventions:
- `index.tsx` — index route for its directory
- `$paramName.tsx` — dynamic segment
## tRPC Setup
## tRPC Setup (optional)
The root route wraps with `<TrpcProvider>`:
`@repo/core-trpc` is not installed by default. After scaffolding with `pnpm turbo gen core-package trpc`:
1. Update `src/routes/__root.tsx`:
```typescript
// src/routes/__root.tsx
import { TrpcProvider } from "@repo/core-trpc/tanstack";
import { Outlet } from "@tanstack/react-router";
import { Outlet, createRootRoute } from "@tanstack/react-router";
import { TanstackTrpcProvider } from "@repo/core-trpc/tanstack";
export const Route = createRootRoute({
component: () => (
<TrpcProvider trpcUrl="http://localhost:3000/api/trpc">
<TanstackTrpcProvider trpcUrl="http://localhost:3000/api/trpc">
<Outlet />
</TrpcProvider>
</TanstackTrpcProvider>
),
});
```
Note: `trpcUrl` must point to a running tRPC endpoint (e.g., from `apps/web-next`).
## Fetching data in routes
2. Fetch data in routes:
```typescript
// src/routes/blog/$slug.tsx
import { createFileRoute } from "@tanstack/react-router";
import { useTRPC } from "@repo/core-trpc";
import { useQuery } from "@tanstack/react-query";
@@ -80,11 +80,7 @@ export const Route = createFileRoute("/blog/$slug")({
function BlogPostPage() {
const { slug } = Route.useParams();
const trpc = useTRPC();
const { data, isLoading } = useQuery(
trpc.blog.getBySlug.queryOptions({ slug })
);
const { data, isLoading } = useQuery(trpc.blog.getBySlug.queryOptions({ slug }));
if (isLoading) return <p>Loading...</p>;
return <article>{data?.title}</article>;
}
@@ -94,9 +90,9 @@ function BlogPostPage() {
| Dependency | Purpose |
|---|---|
| `@repo/core-api` | AppRouter type (via core-trpc) |
| `@repo/core-trpc/tanstack` | TanStack tRPC client + provider |
| `@repo/core-ui` | Design system components |
| `@repo/core-api` | AppRouter type |
| `@repo/core-trpc/tanstack` | TanStack tRPC client + provider (optional — scaffold first) |
| `@repo/core-ui` | Design system components (optional — scaffold first) |
| `@tanstack/react-router` | File-based routing |
| `@tanstack/react-query` | Data fetching + caching |
| `react` / `react-dom` | React 19 runtime |
@@ -113,6 +109,6 @@ Parallel to `apps/web-next` e2e: validates that features work across frameworks.
- **Feature packages:** `packages/{auth,blog,media,marketing-pages,navigation}/`
- **tRPC composition:** `packages/core-api/AGENTS.md`
- **tRPC client + provider:** `packages/core-trpc/AGENTS.md`
- **UI components:** `packages/core-ui/AGENTS.md`
- **tRPC client + provider (optional):** scaffold `@repo/core-trpc` first, then see `turbo/generators/templates/core-package/trpc/AGENTS.md.hbs`
- **UI components (optional):** scaffold `@repo/core-ui` first, then see `packages/core-ui/AGENTS.md`
- **Next.js app (serves tRPC):** `apps/web-next/AGENTS.md`