PingFederate REST API for /sp/adapter not working - pingfederate

Question

PingFederate 8.2.2 is used for our systems.All the REST APIs to create PF objects are automated but /sp/adapter(https://pfhost:9999/pf-admin-api/v1/sp/adapters) is not working using the below JSON .Manually If I create the same configuration it works.The below mentioned JSON is retrieved from already manually created /sp/adapter.But when I use the same JSON in API call which says error as below, please help to solve this problem.
ERROR:
{
"resultId": "validation_error",
"message": "Validation error(s) occurred. Please review the error(s) and address accordingly.",
"validationErrors": [
{
"message": "'' is not a valid selection for 'Send Extended Attributes'",
"fieldPath": "configuration.fields[21].value",
"errorId": "plugin_validation_error"
}
]
}
JSON:
{
"id": "opentokenadapt1",
"name": "opentokenadapt1",
"pluginDescriptorRef": {
"id": "com.pingidentity.adapters.opentoken.SpAuthnAdapter"
},
"configuration": {
"tables": [],
"fields": [
{
"name": "Password",
"value": "Password123"
},
{
"name": "Confirm Password",
"value": "Password123"
},
{
"name": "Transport Mode",
"value": "2"
},
{
"name": "Token Name",
"value": "opentoken"
},
{
"name": "Cipher Suite",
"value": "2"
},
{
"name": "Authentication Service",
"value": ""
},
{
"name": "Account Link Service",
"value": ""
},
{
"name": "Logout Service",
"value": ""
},
{
"name": "Cookie Domain",
"value": ""
},
{
"name": "Cookie Path",
"value": "/"
},
{
"name": "Token Lifetime",
"value": "300"
},
{
"name": "Session Lifetime",
"value": "43200"
},
{
"name": "Not Before Tolerance",
"value": "0"
},
{
"name": "Force SunJCE Provider",
"value": "false"
},
{
"name": "Use Verbose Error Messages",
"value": "false"
},
{
"name": "Obfuscate Password",
"value": "true"
},
{
"name": "Session Cookie",
"value": "false"
},
{
"name": "Secure Cookie",
"value": "false"
},
{
"name": "HTTP Only Flag",
"value": "true"
},
{
"name": "Send Subject as Query Parameter",
"value": ""
},
{
"name": "Subject Query Parameter ",
"value": ""
},
{
"name": "Send Extended Attributes",
"value": ""
},
{
"name": "Skip Trimming of Trailing Backslashes",
"value": "false"
}
]
},
"attributeContract": {
"coreAttributes": [
{
"name": "subject"
}
],
"extendedAttributes": [
{
"name": "nsroles"
}
]
}
}

Answer 1

"Send Extended Attributes" needs a valid value (not the empty string you've given it). The possible values are "0" (None), "1" (Cookies) or "2" (Query Parameters).
One tip in trying to narrow these issues down: try building the SP adapter instance in the PingFederate administrative console (UI) then compare it with the JSON model you GET from the API.