Mongoose - .create() inserts new entry, but hangs afterwards

I am facing a problem, where Item.create(...) inserts new entry into a document, but hangs afterwards.

Here is my code:

app.get('/api/users/all',(req,res) => {
    User.create({ //inserts new entry
        username : "domen",
        name : "domenk",
        location : "usa",
        rating : 0,
        bio : "Student",
        skills : 'c#',
        projects_completed: 0,
        views : 0
      }), (err,user) => { //from here down nothing is executed
        if(err)
          console.log(err);
        User.find((err,users) => {
          if(err)
            res.send(err);
          res.json(users);
        })
      }
});

I am testing this with /GET method, just for getting new entries to the database. But the page hangs, nothing is returned. Where is the problem?

via user115