Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript

Posted by Rohan Kapoor
Rohan Kapoor
294 Points

How to execute mongoose queries in sync ?

/* POST Register User  */
router.post('/register',function(req,res,next){

    let user = req.body;
    //checking for empty field in a form
    for(let key in user){
        if(user[key] === ""){
            return next(mid.error("All fields are required to fill"));
        }
    }

    User.findOne({username:user.username})
        .exec(function(err,user){
            if(err){
                return next(mid.error("Something went wrong"));
            }
            if(user){
                return next(mid.error("Username already exist"));
            }
    });

    User.findOne({email:user.email})
        .exec(function(err,user){
            if(err){
                return next(mid.error("Something went wrong"));
            }
            if(user){
                return next(mid.error("Email already exist"));
            }
    });

    //matching password 
    if(user.password !== user.confirm){
        return next(mid.error("Password not matched.Try again !"));
    }

    //save data in object
    let userData = {
        username : user.username,
        email    : user.email,
        password : user.password
    };

    //save data in database

    User.create(userData,function(err,user){
        if(err){
            return next(mid.error("Something went wrong.Try again !!!"));
        } else {
            req.session.userID = user._id;
            return res.redirect('/home');
        } 

    });



});