Basic calculator service in Go

To build service run make build.
calc binary will be created in ./build/calc. To launch service run ./build/calc.

To build and start service in a container, run the following commands:

$ make services-build # build service docker image
$ make services-up    # launch service container
$ make services-down  # stop service container

Under the hood all service-* commands use docker-compose commands, so could be replaced with:

$ docker-compose build
$ docker-compose up
$ docker-compose down

To execute unit-tests run make test

To execute integration tests run:

$ make services-build
$ make services-up
$ cd test
$ npm t
or
$ newman run postman_collection.json