You can run the app using docker compose, in the app dir just run the command:

docker-compose up

to change the port of the app, please edit it in docker-compose.yml then run again.

You can run the tests using another docker compose config file, just run:

docker-compose -f ./docker-compose.test.yml up

The API is still missing the support for different responses like in the case when the input parameters or the headers are not valid (I was picking up my battles here)