Hosting,Functions,Cookie

gistfile1.txt

import * as functions from 'firebase-functions'
import * as cookie from 'cookie'

// // Start writing Firebase Functions
// // https://firebase.google.com/docs/functions/typescript
//
export const addCookie = functions.https.onRequest((request, response) => {
  response.setHeader('Cache-Control', 'private') // Hosting経由だと、これがないとset cookieが削除される
  _addCookie(response, 'key', 'value')
  response.send('Hello from Firebase!')
})

export const getCookie = functions.https.onRequest((request, response) => {
  //   response.setHeader('Cache-Control', 'private')
  const cookies = cookie.parse(request.headers.cookie || '')
  const sessionState = cookies.state
  response.send(sessionState)
})

function _addCookie (res, key, value) {
  const expiresIn = 60 * 60 * 24
  const options = { maxAge: expiresIn, httpOnly: true }
  // const options = { maxAge: expiresIn, httpOnly: true, secure: true }
  res.setHeader('Set-Cookie', cookie.serialize(key, value, options))
}

// $ curl http://localhost:5000/addCookie -i
// HTTP/1.1 200 OK
// x-powered-by: Express
// cache-control: private
// pragma: no-cache
// expires: 0
// set-cookie: a=b; Max-Age=86400; HttpOnly
// content-type: text/html; charset=utf-8
// content-length: 20
// etag: W/"14-z3iZXchEt5DVWZKsMncy8Wl4KSQ"
// date: Sun, 10 Mar 2019 00:46:45 GMT
// connection: close
// vary: Accept-Encoding, Authorization, Cookie

// Hello from Firebase!

// $ curl http://localhost:5000/getCookie -H 'Cookie: state=6; bar=28; baz=496'
// 6

// $