The command line interface is provided via Makefile targets. To view all the available command line options run make help in the root of the repo.

• For some reason the APIs started returning a 404. This is a result of some sort of initialisation order being wrong. I spent a bit of time trying to fix it but I ran out of time. The tests pass and the command line client works so it must be something to do with how I spin up the main Flask app.

The install the application run:

make build

You will then need to enter an API key attained from your fixer.io api account. Add this api key into the .env file into the variable

FIXERIO_API_KEY=<YOUR-API-KEY>

Once you have done this you will be able to run the application using

make start

You can print the latest exchange rates to the screen by running

make get_latest_rates

You can get a historic rate by curling the api like this

curl 0.0.0.0:5000/rates/2020-01-10

You can save a historic rate to the database by curling the api like this;

curl -X POST 0.0.0.0:5000/rates/2020-01-10

To deploy the application in the foreground run

make start

This will also print logging from all services to the blocking terminal. Logs are not saved to a file currently. A future action would be to integrate a logging service which would push application logs to a decoupled application such as Splunk or Grafana.