REST API object conversion in java - web-services

Question

I have request body of supplier in below format :
{
"supplier": {
"supplierData": {
"supplierAddress": {
"street": "abc",
"postCode": "1234",
"city1": "abcd",
"country": "DE",
"region": "BW"
},
"location": {
"locationID": "1234",
"locationName": "South Africa "
},
"lastUpdatedDateTime": "2022-06-28T10:07:37.000Z"
}
}
}
able to consume it and need to know how to consume the below body request for Location object as null instead of string :
{
"supplier": {
"supplierData": {
"supplierAddress": {
"street": "abc",
"postCode": "1234",
"city1": "abcd",
"country": "DE",
"region": "BW"
},
"location": "null",
"lastUpdatedDateTime": "2022-06-28T10:07:37.000Z"
}
}
}
Any idea how we would do it.

Answer 1

I'm assuming you want to parse this into a defined POJO. And also assuming that Location must be an Object, otherwise (a string), it is null, then you can try parse it:
JSONObject jo = new JSONObject(jsonString); //use your parser library method
Location location = null;
try{
JSONObject jo2 = jo.getJsonObject(location);
//parse jo2 into location
}
catch(JSONException e){
//if exception is throw, it would mean the location data is a string, which can only be "null"
}