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@trpc/next
Advanced tools
@trpc/next is a package that allows you to create end-to-end typesafe APIs using tRPC in a Next.js application. It simplifies the process of building and consuming APIs by leveraging TypeScript for type safety and Next.js for server-side rendering and API routes.
Creating a tRPC Router
This feature allows you to create a tRPC router with various procedures. In this example, a simple 'hello' query is defined that returns 'Hello world'.
import { initTRPC } from '@trpc/server';
const t = initTRPC.create();
const appRouter = t.router({
hello: t.procedure.query(() => 'Hello world'),
});
export type AppRouter = typeof appRouter;
Integrating tRPC with Next.js API Routes
This feature demonstrates how to integrate a tRPC router with Next.js API routes. The `createNextApiHandler` function is used to create an API handler that can be used in a Next.js API route.
import { createNextApiHandler } from '@trpc/server/adapters/next';
import { appRouter } from 'path/to/your/router';
export default createNextApiHandler({
router: appRouter,
createContext: () => null,
});
Using tRPC in Next.js Pages
This feature shows how to use tRPC in a Next.js page. The `trpc.hello.useQuery` hook is used to fetch data from the 'hello' query defined in the tRPC router.
import { trpc } from 'path/to/trpc';
const HomePage = () => {
const { data, error, isLoading } = trpc.hello.useQuery();
if (isLoading) return <div>Loading...</div>;
if (error) return <div>Error: {error.message}</div>;
return <div>{data}</div>;
};
export default HomePage;
next-api-decorators is a package that provides a set of decorators to create type-safe API routes in Next.js. It uses TypeScript decorators to define API routes and handlers, offering a similar level of type safety as @trpc/next but with a different approach.
Blitz is a full-stack React framework built on top of Next.js. It includes a built-in data layer that provides a type-safe API similar to tRPC. Blitz aims to be a 'batteries-included' framework, offering more out-of-the-box features compared to @trpc/next.
GraphQL is a query language for APIs and a runtime for executing those queries. While it is not specific to Next.js, it can be integrated with Next.js to create type-safe APIs. GraphQL offers more flexibility in querying data compared to tRPC but requires more setup and boilerplate.
End-to-end typesafe APIs made easy
@trpc/next
Connect a tRPC router to Next.js.
Full documentation for @trpc/next
can be found here
# npm
npm install @trpc/next @trpc/react-query @tanstack/react-query@4
# Yarn
yarn add @trpc/next @trpc/react-query @tanstack/react-query@4
# pnpm
pnpm add @trpc/next @trpc/react-query @tanstack/react-query@4
# Bun
bun add @trpc/next @trpc/react-query @tanstack/react-query@4
Setup tRPC in utils/trpc.ts
.
import { createTRPCNext, httpBatchLink } from '@trpc/next';
// Import the router type from your server file
import type { AppRouter } from '../pages/api/[trpc].ts';
export const trpc = createTRPCNext<AppRouter>({
config() {
return {
links: [
httpBatchLink({
url: 'http://localhost:3000/trpc',
}),
],
};
},
ssr: true,
});
Hook up tRPC inside _app.tsx
.
import { trpc } from '~/utils/trpc';
const App = ({ Component, pageProps }) => {
return <Component {...pageProps} />;
};
export default trpc.withTRPC(App);
Now you can query your API in any component.
import { trpc } from '~/utils/trpc';
export function Hello() {
const { data, error, status } = trpc.greeting.useQuery({
name: 'tRPC',
});
if (error) {
return <p>{error.message}</p>;
}
if (status !== 'success') {
return <p>Loading...</p>;
}
return <div>{data && <p>{data.greeting}</p>}</div>;
}
FAQs
The tRPC Next.js library
The npm package @trpc/next receives a total of 141,414 weekly downloads. As such, @trpc/next popularity was classified as popular.
We found that @trpc/next demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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