ts-rest

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

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Introduction

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.

Features

• End-to-end type safety 🛟
• RPC-like client side API ⚡️
• Small Bundle Size 📉
• No Code Generation 🏃‍♀️
• Zod support for runtime validation 🔒
• Full optional OpenAPI integration 📝

👉 Start reading the official Quickstart Guide 👈

Super Simple Example

Easily define your API contract somewhere shared

const contract = c.router({
  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(),
    }),
  },
});

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

const router = s.router(contract, {
  getPosts: 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!
});

Quickstart

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.

👉 Start reading the official Quickstart Guide 👈

Contributors ✨

MASSIVE Thanks to all of these wonderful people (emoji key), who have helped make ts-rest possible:

Youssef Gaber 💻 🤔 ⚠️	Per Hermansson 📖 💻	Grégory Houllier 📖	Michael Angelo 📖	Pieter Venter 📖	Rifaldhi AW 📖	Jonathan White 💻 📖
Max Brosnahan 💻 🤔	Oliver Butler 💻 🤔 📖 🚇 🚧	Adrian Barylski 💻 📖 ⚠️	Neil A. Dobson 💻	Eric Do 📖	Ben 💻 📖 readme truncated — read the full docs on github Frequently asked questions Is ts-rest free to use? ts-rest is open source under the MIT licence. There is no licence fee and no seat count — you can self-host it or, where the project offers one, pay a vendor for a managed version instead. What does ts-rest do? RPC-like client, contract, and server implementation for a pure REST API What is ts-rest written in? ts-rest is primarily written in TypeScript. Its source is publicly available at https://github.com/ts-rest/ts-rest, and it has 3,337 GitHub stars.