oRPC
background

Contract

Build your app with contract-first approach

Installation

npm i @orpc/contract

Define the Contract

The API almost the same as the server except that contract will not define the handler.

import {  } from '@orpc/contract'
import {  } from '@orpc/zod'
import {  } from 'zod'
 
// Define your contract first
// This contract can replace server router in most-case
 
export const  = .({
  : 
    .(
      .({
        : .(),
      }),
    )
    .(
      .({
        : .(),
      }),
    ),
 
  : .('/posts').({
    : 
      .({
        : '/{id}',
        : 'GET',
      })
      .(
        .({
          : .(),
        }),
      )
      .(
        .({
          : .(),
          : .(),
          : .(),
        }),
      ),
 
    : 
      .(
        .({
          : .(),
          : .(),
          : .().('image/*'),
        }),
      )
      .(
        .({
          : .(),
          : .(),
          : .(),
        }),
      ),
  }),
})

Implement the Contract

All server features are available, except the input, output, and route parts, which are defined in the contract.

import {  } from '@orpc/server'
import {  } from 'examples/contract'
 
export type  = { ?: { : string } }
export const  = .<>()
export const  /** public access */ = .() // Ensure every implement must be match contract
export const  /** require authed */ = 
  .((, , ) => /** put auth logic here */ .({}))
  .()
 
export const  = .({
  : ..((, , ) => {
    return {
      : `Hello, ${.}!`,
    }
  }),
 
  : {
    : ..
      .((, , ) => {
        return {
          : 'example',
          : 'example',
          : 'example',
        }
      }),
 
    : ...((, , ) => {
      return {
        : 'example',
        : .,
        : .,
      }
    }),
  },
})

Infer Contract Router Inputs and Outputs

The InferContractRouterInputs and InferContractRouterOutputs type utilities can be used to infer the input and output types of a router, respectively.

import { type , type  } from '@orpc/contract'
import {  } from 'examples/contract'
 
type  = <typeof >
type  = <typeof >
 
type  = ['getting']
type  = ['post']['find']

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