I am running into an issue I cannot seem to resolve for the past few hours. Let's get to it.

Currently using the most recent version of express and mongoose

I have the following route with the query in my route.js:

Note
    .findOne({"user": req.body.user, "title": req.body.title, "subtitle": 
     req.body.subtitle})
    .exec(function (err, note) {
       if (err) {handleError(err)};
       console.log(note._id);
    })
    //same implementation as the in the mongoose docs

Then, I have a client side script with the following ajax request:

let settings = {
        type: 'GET',
        url: 'http://localhost:8080/note',
        data: {
            "user": userId,
            "title": noteTitle,
            "subtitle": noteSubtitle
        },
        dataType: "json",
        success: renderGetNoteTemplate
    }
    return $.ajax(settings);

Now the problem is that, even when a document does exist in the database and right collection, the query result is null. And after hours of reading threads on this site and also logging to the console, I decided to log the query to the console and saw this!

_conditions: { subtitle: null, title: null, user: null }

So the condition being passed is null, which obviously will return null. Now, here is the catch. The queries work with conditions such as:

Note.findById(req.cookies.note).exec()

The difference that I could see there is, that the request is not coming from the body. So above I sent the conditions in via the ajax request with something like

{"title": req.body.title}

Lastly, when I just print the req.body.title, etc to the console without passing it to the query, the values come up. So for example, I pass in Romeo And Juliet as the noteTitle, when I print it on the server console, I get the value Romeo And Juliet. It's as soon as I pass it into the query as a condition that the problem arises.

Have literally looked everywhere, especially the way I named my models, etc. Again when I pass req.body argument into the condition then I get the null result.

Also for the sake of brevity, I did not include in the code that I have required bodyParser and so again, the values do show up when it is not going into the query condition.

Any ideas what makes these arguments become null?

Thanks