added map port response as JSON output

client/MAPPort.go

@@ -6,10 +6,14 @@ import (
 	"net/http"
 )
 
-func MAPPort(port string, domainName string) (string, error) {
+type ResponseMAPPort struct {
+	IPAddress string
+}
+
+func MAPPort(port string, domainName string) (*ResponseMAPPort, error) {
 	Config, err := config.ConfigInit(nil, nil)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
 	//if version == "version 6" {
@@ -19,14 +23,17 @@ func MAPPort(port string, domainName string) (string, error) {
 	//}
 	resp, err := http.Get(URL)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
 	// Convert response to byte value
 	byteValue, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
-	return string(byteValue), nil
+	var response ResponseMAPPort
+	response.IPAddress = string(byteValue)
+
+	return &response, nil
 }