-->
Page 1 of 1

HTTP POST with two variables

PostPosted: Wed Mar 08, 2017 3:20 pm
by gbafamily1
Code: Select all/**
 * BasicHTTPClientPost.ino
 *
 * See http://posttestserver.com/ for the HTTP server details.
 */

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

#include <ESP8266HTTPClient.h>

#define USE_SERIAL Serial

ESP8266WiFiMulti WiFiMulti;

void setup() {

    USE_SERIAL.begin(115200);
   // USE_SERIAL.setDebugOutput(true);

    USE_SERIAL.println();
    USE_SERIAL.println();
    USE_SERIAL.println();

    for(uint8_t t = 4; t > 0; t--) {
        USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
        USE_SERIAL.flush();
        delay(1000);
    }

    WiFiMulti.addAP("SSID", "password");
}

void loop() {
    // wait for WiFi connection
    if((WiFiMulti.run() == WL_CONNECTED)) {

        HTTPClient http;

        USE_SERIAL.print("[HTTP] begin...\n");
        // Use posttestserver.com
        http.begin("http://posttestserver.com/post.php");
        http.addHeader("Content-Type", "application/x-www-form-urlencoded", false, true);
       
        USE_SERIAL.print("[HTTP] POST...\n");
        // start connection and send HTTP header
        int httpCode = http.POST("arg1=value1&arg2=value2");

        // httpCode will be negative on error
        if(httpCode > 0) {
            // HTTP header has been send and Server response header has been handled
            USE_SERIAL.printf("[HTTP] POST... code: %d\n", httpCode);

            // file found at server
            if(httpCode == HTTP_CODE_OK) {
                String payload = http.getString();
                USE_SERIAL.println(payload);
            }
        } else {
            USE_SERIAL.printf("[HTTP] POST... failed, error: %s\n", http.errorToString(httpCode).c_str());
        }

        http.end();
    }

    delay(10000);
}

Re: HTTP POST with two variables

PostPosted: Sun Jul 02, 2017 2:23 pm
by sophi
Thanks!
I want to POST the analog value from A0 to the server, then read it back using GET.
Do you know what the syntax is to do that?