Full-Stack React Projects - Second Edition

Sign-in

The API endpoint to sign-in a user is declared in the following route.

mern-skeleton/server/routes/auth.routes.js:

router.route('/auth/signin').post(authCtrl.signin)

When the Express app gets a POST request at '/auth/signin', it executes the signin controller function.

mern-skeleton/server/controllers/auth.controller.js:

const signin = async (req, res) => {  try {    let user = await User.findOne({ "email": req.body.email })    if (!user)      return res.status('401').json({ error: "User not found" })    if (!user.authenticate(req.body.password)) {      return res.status('401').send({ error: "Email and           password don't match." })    }    const token = jwt.sign({ _id: user._id }, config.jwtSecret)    res.cookie('t', token, { expire: new Date() + 9999 }) return res.json({ ...