Huge News!Announcing our $40M Series B led by Abstract Ventures.Learn More
Socket
Sign inDemoInstall
Socket

fastify

Package Overview
Dependencies
Maintainers
4
Versions
290
Alerts
File Explorer

Advanced tools

Socket logo

Install Socket

Detect and block malicious and high-risk dependencies

Install

fastify

Fast and low overhead web framework, for Node.js

  • 5.1.0
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
2.1M
decreased by-11.33%
Maintainers
4
Weekly downloads
 
Created

What is fastify?

Fastify is a fast and low overhead web framework for Node.js. It is highly performant and provides an extensive plugin architecture, making it suitable for building a wide range of server-side applications and services.

What are fastify's main functionalities?

Web Server

Fastify allows you to create a web server that can handle HTTP requests and send responses. The above code demonstrates setting up a simple server that responds with JSON when the root route is accessed.

const fastify = require('fastify')({ logger: true });

fastify.get('/', async (request, reply) => {
  return { hello: 'world' };
});

fastify.listen(3000, (err, address) => {
  if (err) throw err;
  fastify.log.info(`server listening on ${address}`);
});

Route Shorthand Methods

Fastify provides shorthand methods for different HTTP methods like GET, POST, etc. This makes it easy to define routes for various request types.

fastify.get('/example', (request, reply) => {
  reply.send({ message: 'This is a GET request' });
});

fastify.post('/example', (request, reply) => {
  reply.send({ message: 'This is a POST request' });
});

Schema Validation

Fastify supports schema validation for request payloads, query strings, and parameters using JSON Schema. This ensures that the data received is in the expected format.

const schema = {
  body: {
    type: 'object',
    required: ['name'],
    properties: {
      name: { type: 'string' },
      age: { type: 'number' }
    }
  }
};

fastify.post('/user', { schema }, (request, reply) => {
  // Handle request knowing that the body has been validated against the schema
});

Plugins

Fastify has a powerful plugin system that allows you to extend its core functionality. Plugins can add new features, routes, services, and decorators to the Fastify instance.

const myPlugin = async (fastify, options) => {
  fastify.decorate('utility', () => {
    return 'something useful';
  });
};

fastify.register(myPlugin);

// Now you can use fastify.utility() in your application

Lifecycle Hooks

Fastify provides lifecycle hooks that can be used to execute code at various stages of the request/response cycle, such as onRequest, preHandler, onResponse, etc.

fastify.addHook('onRequest', (request, reply, done) => {
  // Perform some operations before the request handler is executed
  done();
});

Other packages similar to fastify

Keywords

FAQs

Package last updated on 31 Oct 2024

Did you know?

Socket

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap
  • Changelog

Packages

npm

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc