RPC-like client and server helpers for a magical end to end typed experience

ts-rest offers a simple way to define a contract for your API, which can be both consumed and implemented by your application, giving you end to end type safety without the hassle or code generation.

• End to end type safety 🛟
• RPC-like client side interface 📡
• Tiny bundle size 🌟 (1kb!)
• Well-tested and production ready ✅
• No Code Generation 🏃‍♀️
• Zod support for runtime type checks 👮‍♀️
• Full optional OpenAPI integration 📝

Easily define your API contract somewhere shared

const contract = c.contract({
  getPosts: {
    method: 'GET',
    path: '/posts',
    query: z.object({
      skip: z.number(),
      take: z.number(),
    }), // <-- Zod schema
    responses: {
      200: c.type<Post[]>(), // <-- OR normal TS types
    },
    headers: z.object({
      'x-pagination-page': z.coerce.number().optional(),
    }),
  },
});

Fulfil the contract on your server, with a type-safe router:

const router = s.router(contract, {
  getPost: async ({ params: { id } }) => {
    return {
      status: 200,
      body: prisma.post.findUnique({ where: { id } }),
    };
  },
});

Consume the api on the client with a RPC-like interface:

const result = await client.getPosts({
  headers: { 'x-pagination-page': 1 },
  query: { skip: 0, take: 10 },
  // ^-- Fully typed!
});

Install the core package

yarn add @ts-rest/core
# Optional react-query integration
yarn add @ts-rest/react-query
# Pick your backend
yarn add @ts-rest/nest @ts-rest/express
# For automatic server OpenAPI gen
yarn add @ts-rest/open-api

Create a contract, implement it on your server then consume it in your client. Incrementally adopt, trial it with your team, then get shipping faster.

Thanks goes to these wonderful people (emoji key):

Youssef Gaber 💻 🤔 ⚠️	Per Hermansson 📖 💻	Grégory Houllier 📖	Michael Angelo 📖	Pieter Venter 📖	Rifaldhi AW 📖	Jonathan White 💻 📖
Max Brosnahan 💻 🤔	Oliver Butler 💻 🤔 📖 🚇 🚧	Adrian Barylski 💻 📖 ⚠️

This project follows the all-contributors specification. Contributions of any kind welcome!