type-provider.test-d.ts — fastify Source File

Source Code

import fastify, {
  FastifyTypeProvider,
  HookHandlerDoneFunction,
  FastifyRequest,
  FastifyReply,
  FastifyInstance,
  FastifyError,
  SafePromiseLike
} from '../../fastify'
import { expectAssignable, expectError, expectType } from 'tsd'
import { IncomingHttpHeaders } from 'node:http'
import { Type, TSchema, Static } from '@sinclair/typebox'
import { FromSchema, JSONSchema } from 'json-schema-to-ts'

const server = fastify()

// -------------------------------------------------------------------
// Default (unknown)
// -------------------------------------------------------------------

expectAssignable(server.get('/', (req) => expectType<unknown>(req.body)))

// -------------------------------------------------------------------
// Remapping
// -------------------------------------------------------------------

interface NumberProvider extends FastifyTypeProvider {
  validator: number
  serializer: number
} // remap all schemas to numbers

expectAssignable(server.withTypeProvider<NumberProvider>().get(
  '/',
  {
    schema: {
      body: { type: 'string' },
      querystring: { type: 'string' },
      headers: { type: 'string' },
      params: { type: 'string' }
    }
  },
  (req) => {
    expectType<number & IncomingHttpHeaders>(req.headers)
    expectType<number>(req.body)
    expectType<number>(req.query)
    expectType<number>(req.params)
  }
))

// -------------------------------------------------------------------
// Override
// -------------------------------------------------------------------

interface OverriddenProvider extends FastifyTypeProvider { validator: 'inferenced' }

expectAssignable(server.withTypeProvider<OverriddenProvider>().get<{ Body: 'override' }>(
  '/',
  {
    schema: {
      body: Type.Object({
// ... (1154 more lines)