Full-Stack React Projects - Second Edition

Updating

The API endpoint to update a single user is declared in the following route.

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

router.route('/api/users/:userId').put(userCtrl.update)

When the Express app gets a PUT request at '/api/users/:userId', similar to read, it loads the user with the :userId parameter value before executing the update controller function.

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

const update = async (req, res) => {  try {    let user = req.profile    user = extend(user, req.body)    user.updated = Date.now()    await user.save()    user.hashed_password = undefined    user.salt = undefined    res.json(user)  } catch (err) {    return res.status(400).json({      error: errorHandler.getErrorMessage(err)    })  }}

The update function retrieves ...