General Notes

[Mu7ammadAbed]

1. WHERE IS THE README ?
2. .env shouldn't be on Github.
3. Why did you install axios and used it instead of `node-fetch?
4. Why there are empty files?
5. test.test.js should be called maybe index.test.js and should be in a separate folder on the root not in src.
6. There's no need to handle the index.html for '/' route, it's handled by default with express.static.
7. You can create a file and called it errors and export both clientError and serverError from it.
8. Your list of requires needs edits in order 1. core 2. 3rd party modules 3. your own modules.
9. You didn't use the router.
10. You should edit your file structure and split app.js into index.js which contain the initial server listening and create a controller folder and a router.
11. Why didn't you bring your API_KEY from the environment variables?
12. Since you know how to destructure variables, why didn't you destructure the other one?

  const labelValue = req.params.label;
  const { option } = req.params;

13. Your design needs a little fixation.