You have been sent this second test because you passed the first test. This is to test your problem solving and logic building skills. Find attached csv file books.csv and a sample response.
In the current Weather API repository, add another API endpoint that will be used to upload the csv file and return in descending order, the types of genres and how many times they appear.
composer require maatwebsite/excel should be a good start for the excel processing. Make good use of laravel collections.