Sequelize how to check if entry exists in database

Question

I need to check if entry with specific ID exists in the database using Sequelize in Node.js

  function isIdUnique (id) {
    db.Profile.count({ where: { id:          


        

Answer 1

Update: see the answer which suggests using findOne() below. I personally prefer; this answer though describes an alternative approach.

You are not returning from the isIdUnique function:

function isIdUnique (id) {
    return db.Profile.count({ where: { id: id } })
      .then(count => {
        if (count != 0) {
          return false;
        }
        return true;
    });
}

isIdUnique(id).then(isUnique => {
    if (isUnique) {
        // ...
    }
});