Making a http POST request using Arduino

Question

I am trying to post information to an API on a web project that I have created and hosted. I am not sure what the exact format is for the HTTP POST request. Every time I t

Answer 1

Another option is using the HTTPClient.h (for the arduino IDE on adafruit's ESP32 feather), which handles https with no effort it seems. I'm including JSON payload also and can successfully send an IFTTT webhook.

  HTTPClient http;
  String url="https:///testurl";
  String jsondata=();

  http.begin(url); 
  http.addHeader("Content-Type", "Content-Type: application/json"); 

  int httpResponseCode = http.POST(jsondata); //Send the actual POST request

  if(httpResponseCode>0){
    String response = http.getString();  //Get the response to the request
    Serial.println(httpResponseCode);   //Print return code
    Serial.println(response);           //Print request answer
  } else {
    Serial.print("Error on sending POST: ");
    Serial.println(httpResponseCode);

    http.end();

 }