CODEWITHSUNDEEP
javascriptmongodbexpressmongooseerror-handling
Hunter
Hunter

Reputation: 1601

Result null jump to catch block in mongoose

I need to add new object in mongodb.

step 1 - checking if user already exist

step 2 - if result is empty then then creating new user

Problem I am using try catch syntax so if user doesn't then it jumping to catch block, because await result is null, so that can we prevent result null is jumping to catch block ?

exports.create = async (req, res, next) => {
try {
   // collection 
   user = await User.findOne({ name: name });

   if (user.name) {
     return res.json({ status: 500, message: "already exist"});
   }


   // adding new user 
   let newUser = await User.create({ newUserObject }, { new: true });
   if(newUser) {
    return res.json({ message: "Your account was successfully created! ", status: 200 
    });
   }



} catch(err) {
 res.json({ status: 500, message: err.message || err.toString() });
}
});

Upvotes: 0

Views: 71

Answers (1)

Cuong Le Ngoc
Cuong Le Ngoc

Reputation: 11975

Your code doesn't enter catch block because .findOne() return null. It's because you called user.name when user is null. Just change your condition to user && user.name then it will work as expected.

Upvotes: 3

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