Advanced Node.js Development

Challenge step 1 - filling the code

The first thing I'm going to do is fill out the code. We're going to validate the ID and we're going to send back a 404 response code if it's not valid. Up at the very top of the file I do not have an ObjectID imported so I'm going to have to go ahead and do that. Just below bodyParser, I can create a variable ObjectID, and set that equal to the return result from require; we're requiring the mongodb library. Now that we have ObjectID in place, we can go ahead and use it. We'll write an if statement, if (ObjectID.isValid()). Now, obviously we only want to run this code if it's not valid, so I'm going to flip the return result using an exclamation mark, and then I'm going to pass id in. Now we have an