ESO8266 + Heroku return -11 code

Projects Networking, Protocols, and Devices
1

Good afternoon, I'm creating an application that sends a json to an http post on heroku through an esp8266, but I'm not having much success.
When making the request, the returned code is -11.

Capturar45ertyrty
Capturar45ertyrty651×547 17.6 KB 

void sendToDatabase() {
  if (WiFi.status() == WL_CONNECTED) {
    WiFiClient client;

    HTTPClient http;

    http.begin(client, serverName);

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

    DynamicJsonDocument doc(2048);

    doc["acc_x"] = "TEST";//String(data.x);
    doc["acc_y"] = "TEST";// = String(data.y);
    doc["acc_z"] = "TEST";// = String(data.z);
    doc["batery"] = "TEST";// = String(data.battery);
    doc["current"] = "TEST";// = String(data.current);
    doc["temperature"] = "TEST";// = String(data.temperature);
    doc["key"] = "TEST";// = String(data.key);

    String json;
    serializeJson(doc, json);

    int httpResponseCode = http.POST(json);

    Serial.print("HTTP Response code: ");
    Serial.println(httpResponseCode);
    String payload = http.getString();

    http.end();
  } else {
    Serial.println("WiFi Disconnected");
  }
  Serial.println();
}

I can make this request through postman, but through esp it doesn't work

2

-11 means read timeout. So a connection seems to be possible but the server doesn't react as expected.

My wild guess: You're accessing a TLS service with the WiFiClient class but that's wild guessing without having seen the complete code.

3

I was able to fix it by removing the s from the https.