How to merge (and not replace) different Json::Value objects in jsoncpp

[ashishsingh5]

I have JSON config in Json::Value json_config of following format:

{
   "configuration":{
      "services":{
         "analytics":{
            "export-profile":[
               {
                  "name":"export_1000",
                  "transport":"grpc"
               }
            ],
            "sensor":[
               {
                  "name":"sensor_1000",
                  "export-name":"export_1000",
               }
            ]
         }
      }
   }
} 

How can I merge multiple similar above mentioned Json::Value such as below

{
   "configuration":{
      "services":{
         "analytics":{
            "export-profile":[
               {
                  "name":"export_1001",
                  "transport":"grpc"
               }
            ],
            "sensor":[
               {
                  "name":"sensor_1001",
                  "export-name":"export_1001",
               }
            ]
         }
      }
   }
} 

into one so that the final config looks something like below:

{
   "configuration":{
      "services":{
         "analytics":{
            "export-profile":[
               {
                  "name":"export_1000",
                  "transport":"grpc"
               },
               {
                  "name":"export_1001",
                  "transport":"grpc"
               },

               ...
            ],
            "sensor":[
               {
                  "name":"sensor_1000",
                  "export-name":"export_1000",
               },
               {
                  "name":"sensor_1001",
                  "export-name":"export_1001",
               },

               ...
            ]
         }
      }
   }
} 

I tried below, but it ends up replacing the previous config, and at the end only the last one remains.

void merge_json_objs (Json::Value& super, Json::Value& sub)
{
    // Merge all members of sub into super
    for (const auto& key : sub.getMemberNames()) {
        if (super[key].type() == Json::objectValue &&
            sub[key].type() == Json::objectValue) {
            merge_json_objects(super[key], sub[key]);
        } else {
            super[key] = sub[key];
        }
    }
}

OS: FreeBSD11,
compiler: gcc 4.2
JsonCpp version: 1.7.4

[nlohmann]

This is the wrong repository - this is "JSON for Modern C++", not JsonCpp.