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 📝

Super Simple Example

Easily define your API contract somewhere shared

1const contract = c.router({
2  getPosts: {
3    method: 'GET',
4    path: '/posts',
5    query: z.object({
6      skip: z.number(),
7      take: z.number(),
8    }), // <-- Zod schema
9    responses: {
10      200: c.type<Post[]>(), // <-- OR normal TS types
11    },
12    headers: z.object({
13      'x-pagination-page': z.coerce.number().optional(),
14    }),
15  },
16});

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

1const router = s.router(contract, {
2  getPosts: async ({ params: { id } }) => {
3    return {
4      status: 200,
5      body: prisma.post.findUnique({ where: { id } }),
6    };
7  },
8});

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

1const result = await client.getPosts({
2  headers: { 'x-pagination-page': 1 },
3  query: { skip: 0, take: 10 },
4  // ^-- Fully typed!
5});

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.

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 💻 📖 ⚠️	LW 💻 🐛
Andrew Vance 📖

Star History

Since our first commit in 2022 we've been growing steadily. We're proud of our progress and we're excited about the future.

Join us on Discord for help, feedback, and discussions!