The first screen you're probably going to show a user is a list of all of their Todos. This is the route you would use to get that information. It's going to be a GET request so I'm going to use app.get to register the route handler, and the URL itself is going to match the URL we have, /todos, because we want to get all of the Todos. Later on when we get an individual Todo, the URL will look something like /todos/123, but for now we're going to match it with the POST URL. Next up, we can add our callback right above app.listen in server.js; this is going to give us our request and response objects:
app.get('/todos', (req, res) => {
});
All we need to do is get all of the Todos in the collection, which we've ...
