Discussion on: Build a Node.js/Express API with MongoDB

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Hello Edin!

Thank you so much for the tutorial. I ran into an error and would be obliged if you could help me.
I got TypeError: Book is not a constructor in this piece of code (pls see screenshot - dev-to-uploads.s3.amazonaws.com/i/...) and cannot move further with the tutorial.
Thanks in advance.

Edin • Sep 23 '20 • Edited

Add the line

module.exports = mongoose.model("Book", BookSchema);

to book.model.js

I fixed it above, sorry for that.

Sophie • Sep 23 '20

Thanks for your prompt reply Edin! I appreciate that.

One more thing, Edin, would you pls fix this part of code, otherwise someone will run into a ReferenceError: next is not defined :-) Thanks again!


book.save((next, err) => {
        if (err) {
            return next(err);
        }
        res.send('Book created successfully!');
    });