HTTPClient.Post returns HTTPC_ERROR_SEND_PAYLOAD_FAILED #2815
Description
I'm doing a post call from my esp8266 to a dotnetcore rest api.
I (sometimes) get HTTPCode -3 when posting to the rest api.
The issue is resolved when I delay the rest call (server side) with 1000ms. The lower I set this delay the more likely it is I get this error. When the response time is <1ms I always get the error.
I'm using this board: https://www.olimex.com/Products/IoT/ESP8266-EVB/open-source-hardware
if((WiFiMulti.run() == WL_CONNECTED)) {
HTTPClient http;
http.begin("http://192.168.178.27:5102/api/Doorbell/Ring");
int httpCode = http.POST("{}");
Serial.println(httpCode);
String payload = http.getString();
Serial.println(payload);
http.end();
}