findOne returns null but it should not (mongoDB)

Question

I'm just asking myself why my template returns null when it shouldn't.

This is my findOne :

await this.findOne({name}, async (template) => {
    console.log(template);
    if (template) return cb(new Error('Template already exists'));

And I'm sure that it should returns me the error Template already exists, because the document with this name exists in my DB.

Someone know why?

Answer 1

Just call .exec() at the end to get the promise and use await to get the value like this

const template = await this.findOne({name}).exec();
// do something here with template