The application is designed to retrieve and store exchange rates for stored currencies.
Two endpoints are available:
- currency/ (GET)
- currency/<base_currency>/<target_currency>/ (GET).
The first returns a list of currencies stored in the database. The second returns the latest exchange rate for the given currencies presented in the database.
To start application run command: docker compose up. Remember about .env file. In exchange_rates folder there is a env.example file which helps creating own .env file.
There are 4 default currencies (EUR, USD, PLN, JPY), they are added when the container is created and after migrations by the default_currencies command defined in exchange_rates/rates/management/commands. The get_exchange_rates command is then executed to retrieve the rates for all currencies. The app gets exchange rates from open version of ExchangeRate-Api. There can be only one rate for a given currency pair for each day.
If you want to have more currencies and exchange rates for them, you need to add a currency via the admin panel and then you must run the get_exchange_rates command. This can be done by recreating the container or in the container shell using the command: python manage.py get_exchange_rates.
The application also includes unittests for commands and endpoints. These can be run in the container shell with the python manage.py test command.