Why is my Model.find returning nothing? - node.js

Question

I'm very new to node and sequelize and I'm trying to follow this short introduction.
I've worked through the parts to connect to my database (postgres). I've also defined a model:
var User = sequelize.define('User', {
username: Sequelize.STRING,
password: Sequelize.STRING
});
I have succesfully synchronized the scheme and created instances. But when I attempt to read from the database using this:
User
.find({ where: { username: 'john-doe' } })
.then(function(err, johnDoe) {
if (!johnDoe) {
console.log('No user with the username "john-doe" has been found.');
} else {
console.log('Hello ' + johnDoe.username + '!');
console.log('All attributes of john:', johnDoe.get());
}
});
That instance does exist, but I only ever see the 'No user with...' message. The query it generates seems correct and when I try it manually, the returned results are what I would expect to see.
Using the same query I can do this, which also works:
sequelize.query("SELECT * FROM my_user_table where username='john-doe'", { type: sequelize.QueryTypes.SELECT})
.then(function(items) {
// We don't need spread here, since only the results will be returned for select queries
console.log(items);
});
What am I missing here?

Answer 1

You're mixing up promises and node-style callbacks. Typically you only expect (err, results) when you pass a callback to the original function. If you call then, you are working with promises and should only expect results. You should call catch to get any errors.
User
.find({ where: { username: 'john-doe' } })
.then(function(johnDoe) {
if (!johnDoe) {
console.log('No user with the username "john-doe" has been found.');
} else {
console.log('Hello ' + johnDoe.username + '!');
console.log('All attributes of john:', johnDoe.get());
}
})
.catch(function(err) {
// Error handling here
});

Answer 2

Actually, you was too close. But you must not use an argument for error handling on then method.
So you must use like the following;
User
.findOne({ where: { username: 'john-doe' } })
.then(function(johnDoe) {
if (!johnDoe) {
console.log('No user with the username "john-doe" has been found.');
} else {
console.log('Hello ' + johnDoe.username + '!');
console.log('All attributes of john:', johnDoe.get());
}
});