The description of the problem is here.
The documentation about the api is here. There you can find examples of requests in each endpoint.
First clone this repository
$ git clone https://github.com/moacirguedes/ZSSN-api
$ cd zssn-api
Then install the dependencies and run the migrations
$ bundle install
$ rails db:migrate
And now you can run the application with
$ bin/rails s
For testing, run one of the following commands
$ bin/rspec
$ bundle exec rspec