How to specify a property as null or a reference?

Question

I have a json document in which a part can be either null or a subobject, like this:

[{
    \"owner\":null    
},
{
    \"owner\":{
        \"id\":1
    }   
}]
         


        

Answer 1

nullable field will be supported in OpenApi (aka Swagger) Specification v3.0.0

So with this new spec your definition would look like:

"properties":{
    "owner":{
        "nullable": true,
         ...
    }
},