Creating the API endpoint for GPT Answers

When our app is complete, we'll have a fully functional API endpoint that can return answers generated by the OpenAI API. But for now, we'll just create an endpoint that returns a placeholder response. Then, we'll test the endpoint using Postman and we'll come back later and finish coding it up.

Creating the API endpoint

To create the API endpoint, do the following:

1. Open the app.js file that was created by express-generator. The file should look like the following screenshot:

   Figure 9.4 – Default app.js created by express-generator

2. Edit line 7 and change var usersRouter = require('./routes/users') to the following:

   var answerRouter = require('./routes/answer');

3. Edit line 18 and change app.use('/users', usersRouter); to the following:

   app.use('/answer', answerRouter);

   After editing lines 7 and 18, the app.js file should...