devfake
Show proper message if api request is forbidden (403 status)
It could be the case, that the API volume of Google Books is exhausted. The response will return a 403 status code.
I updated the backend and return this status to the client (https://github.com/devfake/years-to-read/commit/0d6591402df4ccc14155bcb9f14a0ccec1509423).
What we need now is to display a message in the frontend. The best thing we can do is create a new variable, and set it to true if the response is a 403. And show a proper message in the template, similiar to the Nothing found :( span.
To test this, you can replace the line 24 in express.js instead of res.json(formattedData) with res.json(forbiddenResponse()).
Bonus point: Move the hardcodet status codes (404 for example) to own constants on top of the script (:
