Arduino UNO WiFi Rev2 - Post Request take 5 secs to response

[victorcbar]

Hi guys!

I am using an Arduino UNO WiFi R2 and the library <ArduinoHttpClient.h>. On this one I am making a POST request, which is taking about 5 seconds to respond. Obviously the POST request should take time, however if I send the request from Postman, the response is fast.

Does anyone have any idea how to make the response on the Arduino faster?

void loop() {
 
    sendCardUID();

}

int sendCardUID(){
    
    String path = ENDPOINT_URL_SENDUID;    
    String contentType = CONTENT_TYPE_APPJSON;
    String postData = "data";
        
    Serial.println("Making POST request...");
    
    client.post(path, contentType, postData);
    
    int statusCode = client.responseStatusCode();
    String response = client.responseBody();

    Serial.print("Status code: ");
    Serial.println(statusCode);
    Serial.print("Response: ");
    Serial.println(response);
    
}

[lastchancename]

If that’s your code, you’re possibly swamping the web server with too many requests.

[victorcbar]

I'm actually making a single request, the response status code is 200, but that response delays. For now that's all my code is doing.

void loop() {
  if(nRequest == 0){  
    sendCardUID();
    nRequest = 1;
  }
}

int sendCardUID(){
    

  String path = ENDPOINT_URL_SENDUID;    
  String contentType = CONTENT_TYPE_APPJSON;
  String postData = "data";
        
  Serial.println("Making POST request...");
    
  client.post(path, contentType, postData);
    
  int statusCode = client.responseStatusCode();
  String response = client.responseBody();

  Serial.print("Status code: ");
  Serial.println(statusCode);
  Serial.print("Response: ");
  Serial.println(response);
  
  return statusCode;
}

Additionally, is it possible that while the POST request is responding, other functions can be executed inside the code? Something asynchronous or using threads?