How to resolve UnhandledPromiseRejectionWarning in mongoose?

Question

I\'m trying to fetch data using mongoose.

So everytime i got to fetch the posts from the api -- localhost:3000/api/posts -- i get the foll error that i am unable to

Answer 1

You need some reject handler for your code, for example:

 router.get('/posts', function(req, res) {
    console.log('Requesting posts');
    post.find({})
        .exec()
        .then(function(posts) {
            res.json(posts);
            console.log(posts);
        })
        .catch(function(error){
            console.log('Error getting the posts');
        });
});

Or don't use promise chaining use just callback function:

router.get('/posts', function(req, res) {
    console.log('Requesting posts');
    post.find({}, function(err, posts){
        if (err) {
            console.log('Error getting the posts');
        } else {
            res.json(posts);
            console.log(posts);
        }
    })
});