When you code your next service, will you provide a RESTful API, a message queue or something like GraphQL? Did you ask yourself, what are the benefits or drawbacks for you? With which approach will you to code less, but still have a stable interface?

In the first part we will compare different approaches for writing APIs. The second part is about one approach called GraphQL, which is a query language for the database of a service. In last part you can lean back and I will provide you a SOFA to a small service. This will then create a RESTful API on top of the current GraphQL server.