How to use dependentRequired with relative reference in JSON schema - json

Question

I have below JSON schema in my app, and i am using NewtonSoft JSON schema validation library to validate user JSON against my schema.
The rules that i need to set are -
if user sets property2 in the JSON then property3 should also exist and subProperty2 should also exist underneath property3.
if user does not set property2 then property3 is not required.
I used dependentRequired for this with relative reference using period(.) but that did not work with NewtonSoft package. I tried in 2 different ways, both without expected result.
{
"type": "object",
"additionalProperties": false,
"properties": {
"property1": {
...
},
"property2": {
...
},
"property3": {
"type": "object",
"additionalProperties": false,
"properties": {
"subProperty1": {
...
},
"subProperty2": {
...
},
}
}
},
"required": [
"property1"
]
}
//try 1
"dependentRequired": {
"property2": [ "property3.subProperty2" ]
},
//try 2
"dependentRequired": {
"property2": {
"required": [ "property3" ],
"property3": {
"required": [ "subProperty2" ]
}
}
}
Can someone help me with this?

Answer 1

The dot notation used in the first try is not supported in JSON Schema.
The second try is the right idea, but since you are using a schema, you need to use dependentSchemas instead of dependentRequired. Also, you are missing the properties keyword to make that a valid schema.
"dependentSchemas": {
"property2": {
"required": [ "property3" ],
"properties": {
"property3": {
"required": [ "subProperty2" ]
}
}
}
},