Error when I insert a new Calendar event using PHP + CURL

[nigarjaGC]

Hello everyone,

I'm using PHP + curl to do GET querys against Google Calendar API and everything works as intended, I get a list of events depending of what parameters I use.
The problem is when I'm trying to do create a POST to insert a new event on the calendar, curl always returns error and no event is created in the Calendar.

I have been tried a lot of times with examples I found browsing the web without luck. Basically I tried these 2 ways:
- Creating the JSON code with the parameters I want to use to create the event.
- Writing in the URL all the parameters I have to use.

If I'm doing something wrong please tell me because I have little experience with Google Calendar.

The first code example I tried is:

// Create the JSON code for the event I want insert
function createPostArgsJSON($date, $startTime, $endTime, $title, $description)
{
    $arg_list = func_get_args();
    foreach($arg_list as $key => $arg){
        $arg_list[$key] = urlencode($arg);
    }
   
    $postargs = <<<JSON
{
 "start": {
  "dateTime": "{$date}T{$startTime}:00Z"
 },
 "end": {
  "dateTime": "{$date}T{$endTime}:00Z"
 },
 "summary": "$title",
 "description": "$description"
}
JSON;
    return $postargs;
}

$json_postArgs = createPostArgsJSON("2012-07-07", "01:30", "02:30", "aaa", "bbb");
/*
$json_postArgs will receive:
{ "start": { "dateTime": "2012-07-07T03:30:00.000Z" }, "end": { "dateTime": "2012-07-07T08:30:00.000Z" }, "summary": "aaa", "description": "bbb" }
*/

function sendPostRequest($postArgs, $aToken, $calendar_id)
{
    global $api_key;
   
    $request = "https://www.googleapis.com/calendar/v3/calendars/".$calendar_id."/events?key=".$api_key;

    $session = curl_init();
    curl_setopt($session, CURLOPT_URL, $request);
    curl_setopt($session, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($session, CURLOPT_HEADER, true);
    curl_setopt($session, CURLOPT_HTTPHEADER, array('Content-Type:  application/json','Authorization:  Bearer ' . $aToken));
    curl_setopt($session, CURLOPT_POSTFIELDS, $postArgs);

    $response = curl_exec($session);
// var_dump(curl_getinfo($session));
    curl_close($session);

    return $response;
}
/*
Returns if I execute it with:
var_dump(sendPostRequest($json_postArgs, $accessToken, $book_calendar_id));

/*
// Output:

string 'HTTP/1.1 403 Forbidden

Content-Type: application/json; charset=UTF-8

Date: Thu, 05 Jul 2012 17:05:32 GMT

Expires: Thu, 05 Jul 2012 17:05:32 GMT

Cache-Control: private, max-age=0

X-Content-Type-Options: nosniff

X-Frame-Options: SAMEORIGIN

X-XSS-Protection: 1; mode=block

Server: GSE

Transfer-Encoding: chunked



{
 "error": {
  "errors": [
   {
    "domain": "usageLimits",
    "reason": "accessNotConfigured",
    "message": "Access Not Configured"
   }
  ],
  "code": 403,
  "message": "Access Not Con'... (length=526)

*/


$accessToken, $api_key, $book_calendar_id have valid values I have been using for the GET queries.

If I uncomment the "var_dump(curl_getinfo($session));" line in the sendPostRequest function I get:

array
  'url' => string 'https://www.googleapis.com/calendar/v3/calendars/XXXXXXXXXXXXXXXXX
/events?key=YYYYYYYYYYY' (length=152)
  'content_type' => string 'application/json; charset=UTF-8' (length=31)
  'http_code' => int 403
  'header_size' => int 321
  'request_size' => int 470
  'filetime' => int -1
  'ssl_verify_result' => int 20
  'redirect_count' => int 0
  'total_time' => float 0.281
  'namelookup_time' => float 0
  'connect_time' => float 0.062
  'pretransfer_time' => float 0.203
  'size_upload' => float 148
  'size_download' => float 205
  'speed_download' => float 729
  'speed_upload' => float 526
  'download_content_length' => float -1
  'upload_content_length' => float 148
  'starttransfer_time' => float 0.281
  'redirect_time' => float 0
  'certinfo' => 
    array
      empty
  'redirect_url' => string '' (length=0)

A lot of unitialized values as you can see.
*/

The second code example I tried is:

function book_new()
{
    global $api_key;
    global $accessToken;
    global $book_calendar_id;

    $bookNewQuery = "https://www.googleapis.com/calendar/v3/calendars/$book_calendar_id/events?summary=aaaa&description=bbbbb&start.dateTime=2012-07-06T01:30:00.000Z&end.dateTime=2012-07-06T02:30:00.000ZsendNotifications=false&key=$api_key";
   
    return send_post($bookNewQuery);
}

function send_post($query)
{
    global $api_key;
    global $accessToken;
   
    $curl = curl_init($query);
    curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HEADER, true);
    $curlheader[0] = "Authorization: Bearer ".$accessToken;
    curl_setopt($curl, CURLOPT_HTTPHEADER, $curlheader);
        ////curl_setopt($session, CURLOPT_POSTFIELDS, $postArgs); // No works when I put here all the parameters

    $response = curl_exec($curl);
    //var_dump(curl_getinfo($curl));
    curl_close($curl);
   
    return $response;
}

Calling "var_dump(book_new());" I get this error;

string 'HTTP/1.0 400 Bad Request

Content-Type: text/html; charset=UTF-8

Content-Length: 925

Date: Thu, 05 Jul 2012 17:08:34 GMT

Server: GFE/2.0



<!DOCTYPE html>
<html lang=en>
  <meta charset=utf-8>
  <meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width">
  <title>Error 400 (Bad Request)!!1</title>
  <style>
    *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:'... (length=1068)

If I uncomment the "var_dump(curl_getinfo($curl));" line in the send_post function I get:

array
  'url' => string 'https://www.googleapis.com/calendar/v3/calendars/XXXXXXXXXXXXXXXXX/events?summary=aaaa&description=bbbbb&start.dateTime=2012-07-06T01:30:00.000Z&end.dateTime=2012-07-06T02:30:00.000ZsendNotifications=false&key=YYYYYYYYYYYYY' (length=284)
  'content_type' => string 'text/html; charset=UTF-8' (length=24)
  'http_code' => int 400
  'header_size' => int 143
  'request_size' => int 490
  'filetime' => int -1
  'ssl_verify_result' => int 20
  'redirect_count' => int 0
  'total_time' => float 0.25
  'namelookup_time' => float 0
  'connect_time' => float 0.063
  'pretransfer_time' => float 0.188
  'size_upload' => float 0
  'size_download' => float 925
  'speed_download' => float 3700
  'speed_upload' => float 0
  'download_content_length' => float 925
  'upload_content_length' => float -1
  'starttransfer_time' => float 0.25
  'redirect_time' => float 0
  'certinfo' => 
    array
      empty
  'redirect_url' => string '' (length=0)

I'm completly lost at this point, I can't replicate my successful inserts from the OAuth 2.0 Playground or from the query builder at https://developers.google.com/google-apps/calendar/v3/reference/events/insert and I can't use the Google API client for PHP.

Please, can someone explain me what I'm doing wrong in these examples? I strongly believe that must be a very insignificant detail I forgot but after dozens of examples I'm lost & frustrated.