How to customize swagger codegen to generate models that ignore null values

Question

I'm using swagger-codgen to generate java model classes for my spring boot application and serialize them as json. By default these models would all include optional properties with null values.

I would like to configure the swagger-codgen for spring to include this annotation on top of all classes: @JsonInclude(Include.NON_NULL) so that null valued properties are not included in the serialized json.

How can i achieve this? Is there a configuration option or do i have to extend the spring codegen manually?

Answer 1

You can configure that in your application.yaml :

spring:
   jackson:
      default-property-inclusion: NON_NULL

Answer 2

One way of achieving that would be modifying the pojo template for Java Spring by adding the annotation. This template is used to generate the models.