Url https://cosmoport.herokuapp.com/

Implemented:

1. get a list of all existing ships;
2. create a new ship;
3. edit the characteristics of an existing vehicle;
4. remove the ship;
5. receive ship by id; 6.receive a filtered list of ships according to passed filters;
6. get the number of ships that match the filters.

Business logic is also present: Before saving the ship to the database (when adding a new or when updating the characteristics of an existing one), is calculated the ship's rating is saved in the database.