Post request

Info kan ook verzonden worden via een post request. Voorbeeld:

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>

void setup() {
  Serial.begin(115200);                  //Serial connection
  WiFi.begin("SSID", "PASSWORD");   //WiFi connection
  while (WiFi.status() != WL_CONNECTED) {  //Wait for the WiFI connection completion
    delay(500);
    Serial.println("Waiting for connection");
  }
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
    WiFiClient client;
    HTTPClient http;    //Declare object of class HTTPClient
    http.begin(client,"http://sensor-cube.be/opleidingiot/formpost.php");
    http.addHeader("Content-Type", "application/x-www-form-urlencoded");  //Specify content-type header
    int httpCode = http.POST("name=Message from ESP8266");   //Send the request
    String payload = http.getString();                  //Get the response payload
    Serial.println(httpCode);   //Print HTTP return code
    Serial.println(payload);    //Print request response payload
    http.end();  //Close connection
  }
  else {
    Serial.println("Error in WiFi connection");
  }
  delay(30000);  //Send a request every 30 seconds
}