npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@fastify/response-validation

v2.6.0

Published

A simple plugin that enables response validation for Fastify.

Downloads

12,473

Readme

@fastify/response-validation

CI NPM version js-standard-style

A simple plugin that enables response validation for Fastify.
The use of this plugin will slow down your overall performance, so we suggest using it only during development.

Install

npm i @fastify/response-validation

Usage

You just need to register the plugin and you will have response validation enabled:

import fastify from 'fastify'

const app = fastify()

await app.register(require('@fastify/response-validation'))

app.route({
  method: 'GET',
  path: '/',
  schema: {
    response: {
      '2xx': {
        type: 'object',
        properties: {
          answer: { type: 'number' }
        }
      }
    }
  },
  handler: async (req, reply) => {
    return { answer: '42' }
  }
})

app.inject({
  method: 'GET',
  path: '/'
}, (err, res) => {
  if (err) throw err
  console.log(res.payload)
})

Different content types responses are supported by @fastify/response-validation, @fastify/swagger and fastify. Please use content for the response otherwise Fastify itself will fail to compile the schema:

{
  response: {
    200: {
      description: 'Description and all status-code based properties are working',
      content: {
        'application/json': {
          schema: { 
            name: { type: 'string' }, 
            image: { type: 'string' }, 
            address: { type: 'string' } 
          }
        }, 
        'application/vnd.v1+json': {
          schema: { 
            fullName: { type: 'string' }, 
            phone: { type: 'string' } 
          }
        }
      }
    }
  }
}

If you want to override the default ajv configuration, you can do that by using the ajv option:

// Default configuration:
//    coerceTypes: false
//    useDefaults: true
//    removeAdditional: true
//    allErrors: true

import responseValidator from '@fastify/response-validation'

// ... App setup

await fastify.register(responseValidator, {
  ajv: {
    coerceTypes: true
  }
})

You can also pass in an instance of ajv

// Default configuration:
//    coerceTypes: false
//    useDefaults: true
//    removeAdditional: true
//    allErrors: true

import responseValidator from '@fastify/response-validation'
import Ajv from 'ajv'

// ... App setup

const ajv = new Ajv()
await fastify.register(responseValidator, { ajv })

By default the response validation is enabled on every route that has a response schema defined. If needed you can disable it all together with responseValidation: false:

import responseValidator from '@fastify/response-validation'

// ... App setup
await fastify.register(responseValidator, {
  responseValidation: false
})

Alternatively, you can disable a specific route with the same option:

fastify.route({
  method: 'GET',
  path: '/',
  responseValidation: false,
  schema: {
    response: {
      '2xx': {
        type: 'object',
        properties: {
          answer: { type: 'number' }
        }
      }
    }
  },
  handler: async (req, reply) => {
    return { answer: '42' }
  }
})

Plugins

You can also extend the functionalities of the ajv instance embedded in this validator by adding new ajv plugins.

fastify.register(require('fastify-response-validation'), {
  ajv: {
    plugins: [
      require('ajv-formats'),
      [require('ajv-errors'), { singleError: false }]
      // Usage: [plugin, pluginOptions] - Plugin with options
      // Usage: plugin - Plugin without options
    ]
  }
})

License

MIT