#include "mbed.h"
#include "EthernetNetIf.h"
#include "SuperTweetV1XML.h"

#define YOUR_ACCOUNT    "EuiSeokHong"
#define YOUR_PASSWORD   "110787"

extern "C" void mbed_reset();

EthernetNetIf net;
SuperTweetV1XML st(YOUR_ACCOUNT, YOUR_PASSWORD);

/**
 * Callback function for postStatusesUpdate.
 *
 * @param buf A pointer to a buffer.
 * @param siz A size of the buffer.
 */
void func(char *buf, size_t siz) {
#if 0
    /*
     * This is for checking a response.
     */
    for (int i = 0; i < siz; i++) {
        printf("%c", buf[i]);
    }
#endif
}

/**
 * Entry point.
 */
int main() {
    char text[BUFSIZ];
    int cnt = 0;

    EthernetErr err = net.setup();
    if (err) {
        error("Network setup failed.\n");
    }

    while (1) {
        snprintf(text, sizeof(text), "Hi! I'm mbed from ARM. Message number is %d", cnt++);
        HTTPResult r = st.postStatusesUpdate(std::string(text), func);
        printf("r=%d\n", (int)r);

        /*
         * Note:
         * I don't know why sometime it get a error.
         * I think it a bug in a mbed library.
         */
        if (r != 0) {
            printf("Resetting...\n");
            mbed_reset();
        }

        wait(5);
    }
}

#include "EthernetNetIf.h"
#include "HTTPClient.h"

EthernetNetIf eth; 

int main() {

  printf("Init\n");

  printf("\r\nSetting up...\r\n");
  EthernetErr ethErr = eth.setup();
  if(ethErr)
  {
    printf("Error %d in setup.\n", ethErr);
    return -1;
  }
  printf("\r\nSetup OK\r\n");

  HTTPClient twitter;
  
  HTTPMap msg;
  msg["status"] = "I am tweeting from my mbed!"; //A good example of Key/Value pair use with Web APIs

  twitter.basicAuth("EuiSeokHong", "110787"); //We use basic authentication, replace with you account's parameters
  
  //No need to retieve data sent back by the server
  HTTPResult r = twitter.post("http://api.supertweet.net/1/statuses/update.xml", msg, NULL); 
  if( r == HTTP_OK )
  {
    printf("Tweet sent with success!\n");
  }
  else
  {
    printf("Problem during tweeting, return code %d\n", r);
  }
  
  return 0;

}

main.cpp

// RFID Tweeter

#include "mbed.h"
#include "ID12RFID.h"
#include "EthernetNetIf.h"
#include "HTTPClient.h"

#define TWITTER_USER "donatiengarnier"
#define TWITTER_PASSWORD "myverysecurepassword"

#define IDS_COUNT 3
const int ids_list[IDS_COUNT] = {89481809, 89481810, 89481811};
const char* names_list[IDS_COUNT] = {"Donatien", "Simon", "Dan"};

EthernetNetIf ethernet;
HTTPClient twitter;

ID12RFID rfid(p14);
DigitalOut tag_present(LED1);
DigitalOut tweet_ok(LED4);

int main() {
  ethernet.setup();
  twitter.basicAuth(TWITTER_USER, TWITTER_PASSWORD);

  while(true) {
    int id = rfid.read();
    tag_present = 1;
    for(int i = 0; i < IDS_COUNT; i++) {
      if (ids_list[i] == id) {
        HTTPMap msg;
        msg["status"] = names_list[i];
        msg["status"] += " just arrived home!";
        HTTPResult r = twitter.post("http://api.supertweet.net/1/statuses/update.xml", msg, NULL);
        tweet_ok = !r;
      }
    }
    tag_present = 0;
  }
}