Define Kubernetes Custom Resource requiring one of the following fields or no fields
OpenAPI 3.1
You can use 'null' (with quotes).
oneOf: - type: 'null'Or an object with a property of type null.
oneOf: - NullObjectExample: type: object properties: prop1: type: 'null'OpenAPI 3.0
There is no null type, but you can use a nullable string. You may want to add a description stating this is expected to be null at all times.
oneOf: - type: string nullable: trueOr again, an object with a nullable string property.
oneOf: - NullObjectExample: type: object properties: prop1: type: string nullable: trueWhy No Empty Object
In addition to not making intent clear, this presents a possible security vulnerability. See this page for an explanation. In short:
If you do not clearly define the schema and you leave properties of a JSON payload empty, you effectively allow attackers to pass in any data. This means that you are opening your backend to various attacks, such as SQL injection.