HomeDynamicv3/hardware/hds_5-way-switch/firmware/5xswitches/target.ino

void resolveTargetRelayIP(){
  //Resolve the target relay module IP from mDNS broadcast
   if(resolveMdnsService("http", "tcp", TARGET_DEVICE, &target_ip, &target_port)) {
    Serial.printf("got an answer for %s.local!\n", TARGET_DEVICE);
    Serial.println(target_ip);
    Serial.println(target_port);
  } else {
    Serial.printf("Sorry, %s.local not found\n", TARGET_DEVICE);
  }
}

void GetRequest(String url) {
  WiFiClient client;  // Create a WiFiClient object

  HTTPClient http;
  http.begin(client, url);  // Pass the WiFiClient object and the URL to begin()

  int httpCode = http.GET();  // Make the GET request

  if (httpCode > 0) {
    String payload = http.getString();  // Get the response payload
    Serial.println("HTTP Response Code: " + String(httpCode));
    Serial.println("Response Payload: " + payload);
  } else {
    Serial.println("Error on HTTP request");
  }

  http.end();  // Close connection
}