How to use express-async-router

router.post(
 "/login", 
 [...loginValidators, handleValidationErrors],
 async (req, res) => {
  const user = await User.findOne({email: req.body.email});

  if(!user || !user.comparePassword(req.body.password))
   return res.status(400).send("Invalid login information");
   
  const token = jwt.sign({
   _id: user._id,
  }, "CHANGEME!");

  res.send({token});
 }
);

router.get("/profile", [jwtMiddleware], async (req, res) => {
 const user = await User.findOne({_id: req.user._id});

 res.send(user);
});

router.post(
 "/sign-up", 
 [...signUpValidators, handleValidationErrors], 
 async (req, res) => {
  const userExists = await User.findOne({email: req.body.email});

  if(userExists)
   return res.status(400).send("E-mail already exists");
  if(req.body.password !== req.body.passwordConfirm)
   return res.status(400).send("Passwords do not match");

  const user = await User.signUp(req.body.email, req.body.password);
  res.status(201).send(user.sanitize());
 }
);

router.post(
 "/sign-up", 
 [...signUpValidators, handleValidationErrors], 
 async (req, res) => {
  const userExists = await User.findOne({email: req.body.email});

  if(userExists)
   return res.status(400).send("E-mail already exists");
  if(req.body.password !== req.body.passwordConfirm)
   return res.status(400).send("Passwords do not match");

  const user = await User.signUp(req.body.email, req.body.password);
  res.status(201).send(user.sanitize());
 }
);

router.post(
 "/login", 
 [...loginValidators, handleValidationErrors],
 async (req, res) => {
  const user = await User.findOne({email: req.body.email});

  if(!user || !user.comparePassword(req.body.password))
   return res.status(400).send("Invalid login information");
   
  const token = jwt.sign({
   _id: user._id,
  }, "CHANGEME!");

  res.send({token});
 }
);

router.get("/profile", [jwtMiddleware], async (req, res) => {
 const user = await User.findOne({_id: req.user._id});

 res.send(user);
});