Uploading to Xively using SIM900 and arduino Mega

Projects Programming
1

So here's my code:

#include <String.h>
 
void setup()
{
  Serial1.begin(9600);               // the GPRS baud rate   
  Serial.begin(9600);    // the GPRS baud rate 
  delay(500);
}
 
void loop()
{
  //after start up the program, you can using terminal to connect the serial of gprs shield,
  //if you input 't' in the terminal, the program will execute SendTextMessage(), it will show how to send a sms message,
  //if input 'd' in the terminal, it will execute DialVoiceCall(), etc.
 
  if (Serial.available())
    switch(Serial.read())
   {
     case 't':
       SendTextMessage();
       break;
     case 's':
       Send2Pachube();
       break;
   } 
  if (Serial1.available())
    Serial.write(Serial1.read());
}
 
///SendTextMessage()
///this function is to send a sms message
void SendTextMessage()
{
  Serial1.print("AT+CMGF=1\r");    //Because we want to send the SMS in text mode
  delay(100);
  Serial1.println("AT + CMGS = \"+919003109999  \"");//send sms message, be careful need to add a country code before the cellphone number
  delay(100);
  Serial1.println("A test message!");//the content of the message
  delay(100);
  Serial1.println((char)26);//the ASCII code of the ctrl+z is 26
  delay(100);
  Serial1.println();
}
 
///send2Pachube()///
///this function is to send the sensor data to the pachube, you can see the new value in the pachube after execute this function///
void Send2Pachube()
{
  Serial1.println("AT+CGATT?");
  delay(1000);
 
  ShowSerialData();
 
  Serial1.println("AT+CSTT:\"airtelgprs.com\"");//start task and setting the APN,
  delay(1000);
 
  ShowSerialData();
 
  Serial1.println("AT+CIICR");//bring up wireless connection
  delay(3000);
 
  ShowSerialData();
 
  Serial1.println("AT+CIFSR");//get local IP adress
  delay(2000);
 
  ShowSerialData();
 
  Serial1.println("AT+CIPSPRT=0");
  delay(3000);
 
  ShowSerialData();
 
  Serial1.println("AT+CIPSTART=\"tcp\",\"api.xively.com\",\"8081\"");//start up the connection
  delay(2000);
 
  ShowSerialData();
 
  Serial1.println("AT+CIPSEND");//begin send data to remote server
  delay(4000);
  ShowSerialData();
  String humidity = "1031";//these 4 line code are imitate the real sensor data, because the demo did't add other sensor, so using 4 string variable to replace.
  String moisture = "1242";//you can replace these four variable to the real sensor data in your project
  String temperature = "30";//
  String barometer = "60.56";//
  Serial1.print("{\"method\": \"put\",\"resource\": \"/feeds/FEED_ID/\",\"params\"");//here is the feed you apply from pachube
  delay(500);
  ShowSerialData();
  Serial1.print(": {},\"headers\": {\"X-ApiKey\":");//in here, you should replace your pachubeapikey
  delay(500);
  ShowSerialData();
  Serial1.print("\"API_KEY""},\"body\":");
  delay(500);
  ShowSerialData();
  Serial1.print(" {\"version\": \"1.0.0\",\"datastreams\": ");
  delay(500);
  ShowSerialData();
  Serial1.println("[{\"id\": \"01\",\"current_value\": \"" + barometer + "\"},");
  delay(500);
  ShowSerialData();
  Serial1.println("{\"id\": \"02\",\"current_value\": \"" + humidity + "\"},");
  delay(500);
  ShowSerialData();
  Serial1.println("{\"id\": \"03\",\"current_value\": \"" + moisture + "\"},");
  delay(500);
  ShowSerialData();
  Serial1.println("{\"id\": \"04\",\"current_value\": \"" + temperature + "\"}]}}");
 
 
  delay(500);
  ShowSerialData();
 
  Serial1.println((char)26);//sending
  delay(5000);//waitting for reply, important! the time is base on the condition of internet 
  Serial1.println();
 
  ShowSerialData();
 
  Serial1.println("AT+CIPCLOSE");//close the connection
  delay(100);
  ShowSerialData();
}
 
void ShowSerialData()
{
  while(Serial1.available()!=0)
    Serial.write(Serial1.read());
}

And this is my output, on running the send function
"status":400,"body":"Syntax Error: lexical error

I also get an error message for AT+CSTT:"airtelgprs.com" but i get a response from the server.

The code is from here:
http://www.seeedstudio.com/wiki/GPRS_Shield_V1.0