Full-Stack React Projects - Second Edition

The yearly expenses API

We will add an API to the backend that will return the total monthly expenses incurred over a given year in the data format needed to render the bar chart in the frontend.

To implement this API, we will first declare a GET route, as shown in the following code.

mern-expense-tracker/server/routes/expense.routes.js:

router.route('/api/expenses/yearly')  .get(authCtrl.requireSignin, expenseCtrl.yearlyExpenses)

A GET request to this route at '/api/expenses/yearly' will first ensure that the requesting client is a signed-in user, and then it will invoke the yearlyExpenses controller method. The request will also take the value of the given year in a URL query parameter, which will be used in the yearlyExpenses method to ...