merging container arrays

[Vino]

Hi All,

    Request your help on the below code, the requirement is that 
result's are stored in one single container.

Code:
import asdf;
import std.algorithm: map;
import std.container.array;
import std.stdio: writeln;
import std.typecons: Tuple, tuple;
import std.range: lockstep;

auto api1()
{
  string apidata1 = `{"items": [
         {"name":"T01","hostname":"test01","pool":"Development"},
         {"name":"T02","hostname":"test02","pool":"Quality"},
         {"name":"T03","hostname":"test03","pool":"Production"}
   ]}`;

  Array!(Tuple!(string, string, string)) data1 = 
parseJson(apidata1)["items"].byElement
                              .map!(item => tuple(
                                                  
item["name"].get!string("default"),
                                                  
item["hostname"].get!string("default"),
                                                  
item["pool"].get!string("default")
                                                  ));
  return data1[];
}

auto api2()
{
  string apidata2 = `{"items": [
     {"hostname":"test01","type":"Development"},
     {"hostname":"test02","type":"Quality"},
     {"hostname":"test03","type":"Production"}
   ]}`;

  Array!(Tuple!(string, string)) data2 = 
parseJson(apidata2)["items"].byElement
                              .map!(item => tuple(
                                                  
item["hostname"].get!string("default"),
                                                  
item["type"].get!string("default")
                                          ));
  return data2[];
}

auto api3()
{
  string apidata3 = `{"items": [
     {"type":"Development","location":"L1"},
     {"type":"Quality","location":"L2"},
     {"type":"Production","location":"L3"}
   ]}`;

  Array!(Tuple!(string, string)) data3 = 
parseJson(apidata3)["items"].byElement
                                 .map!(item => tuple(
                                                     
item["type"].get!string("default"),
                                                     
item["location"].get!string("default")
                                          ));
  return data3[];
}



void main()
{
  auto apidata1 = api1;
  auto apidata2 = api2;
  auto apidata3 = api3;
  if(!apidata1.empty) {
     foreach(ref x , y; lockstep(apidata1[], apidata2[])) {
        if(x[1] == y[0]){
           writeln(y[1]);  // the output needs to be merged with 
apidata1
        }
     }
  }
  if(!apidata2.empty) {
     foreach(ref x, y; lockstep(apidata2[], apidata3[])) {
        if(x[1] == y[0]) {
           writeln(y[1]); // the output needs to be merged with 
apidata1
        }
     }
  }
  writeln(apidata1[]); // Should 
contain(name,hostname,pool,type,location)
}

From,
Vino.B