Why you should use OpenAPI for your API design | Nick Van Hoof

API First development – should you practise it? Of course. In this lightning talk, I’ll show you how OpenAPI can make your life easier in a serverless world:

Creating the contract with your consumers is the first thing you do
You can automatically create your API from this OpenAPI definitions (e.g. skip the whole configuration of your API Gateway on AWS by using OpenAPI)
You’ll have a beautiful visual overview of your API
Generate your class definitions based on this OpenAPI definitions
Validate incoming and outgoing requests with the OpenAPI definition
Did you notice that I just gave you five advantages of using OpenAPI? It’s only the beginning. And that’s why you should practice API First development with OpenAPI.

[PaulSebastianM]

Why do you need getters on simple DTO objects?