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fastify-cookiepublic

fastify-cookie

A plugin for Fastify that adds support for reading and setting cookies.

This plugin's cookie parsing works via Fastify's preHandler hook. Therefore, you should register it prior to any other preHandler hooks that will depend upon this plugin's actions.

Example

const fastify = require('fastify')()
 
fastify.register(require('fastify-cookie'), (err) => {
  if (err) throw err
})
 
fastify.get('/', (req, reply) => {
  const aCookieValue = req.cookies.cookieName
  reply
    .setCookie('foo', 'foo', {
      domain: 'example.com',
      path: '/'
    })
    .send({hello: 'world'})
})

API

Parsing

Cookies are parsed in the preHandler Fastify hook and attached to the request as an object named cookies. Thus, if a request contains the header Cookie: foo=foo then, within your handler, req.cookies.foo would equal 'foo'.

Sending

The method setCookie(name, value, options) is added to the reply object via the Fastify decorateReply API. Thus, in a request handler, reply.setCookie('foo', 'foo', {path: '/'}) will set a cookie named foo with a value of 'foo' on the cookie path /.

name: a string name for the cookie to be set
value: a string value for the cookie
options: an options object as described in the cookie serialize documentation