Google Tracks API“Bad Request”使用PHP

Question

我正在使用Google Tracks API构建一个简单的基于Web的程序来跟踪具有发送纬度和经度坐标的跟踪设备的车辆。 我使用PHP和OAuth2 PHP library进行授权连接。

授权并获取访问令牌后，我正在发出创建实体的请求。虽然我似乎无法得到这个工作，并不断收到“400错误请求”响应。遵循documentation中显示的所有步骤。

这里是我的代码：

$url = 'https://www.googleapis.com/tracks/v1/entities/create/?access_token='.$parsedAuth['access_token']; 

$data = array('entities' => array("name"=> "Chevrolet")); 
$json_data = json_encode($data); 
$data_length = http_build_query($data); 

$options = array(
    'http' => array(
      'header' => "Content-type: application/json\r\n". "Content-Length: " . strlen($data_length) . "\r\n", 
      'method' => 'POST', 
      'content' => $json_data 
     ), 
    ); 

    $context = stream_context_create($options); 
    $response = file_get_contents($url, false, $context); 

    var_dump($response); 

确切的错误是： “未能打开流：HTTP请求失败，HTTP/1.0 400错误的请求”

为什么我会得到一个错误的请求？什么是一个很好的请求，将注册这些实体并返回id的？ 谢谢

Answer 1

这里给出的答案是错误的。该文档声明它必须是POST see here我的问题不是Auth，而是跟踪API本身。我最终移动到使用CURL创建请求，它工作得很好。

Answer 2

请。这是PHP和CURL。它工作100％。

//Google maps tracks connection 
//Get Files From PHP Library 
require_once 'google-api-php-client/src/Google/autoload.php'; 
require_once 'google-api-php-client/src/Google/Service/MapsEngine.php'; 

//Set Client Credentials 
$client_id = '*************.apps.googleusercontent.com'; //Client ID 
$service_account_name = '************@developer.gserviceaccount.com'; //Email Address 
$client_email = '*************@developer.gserviceaccount.com'; 
$private_key = file_get_contents('************.p12'); 
$scopes = array('https://www.googleapis.com/auth/tracks'); 

//Create Client 
$client = new Google_Client(); 

$client->setApplicationName("Client_Library_Examples"); 

//Send Credentials 
$credentials = new Google_Auth_AssertionCredentials(
    $client_email, 
    $scopes, 
    $private_key 
); 
$client->setAssertionCredentials($credentials); 

if ($client->getAuth()->isAccessTokenExpired()) { 
    $client->getAuth()->refreshTokenWithAssertion($credentials); 
} 

if (isset($_SESSION['service_token'])) { 
    $client->setAccessToken($_SESSION['service_token']); 
} 

$client->setAssertionCredentials($credentials); 

$_SESSION['service_token'] = $client->getAccessToken(); 
foreach ($_SESSION as $key=> $value) { 
    $vars = json_decode($value); 
} 
$parsedAuth = (array) $vars; 
$token = $parsedAuth['access_token']; 
//all functions in the program use this auth token- It should be global for easy accesses. 
global $token; 


function createEntities(){ 
    global $token; 
    $url = 'https://www.googleapis.com/tracks/v1/entities/create/?access_token='.$token; 

    //FIX ME: fields is temporarily hard coded- should be brought from DB 
    $fields = array(
       'entities' => array(
        'name' => "DemoTruck", 
        'type' => "AUTOMOBILE" 
        ), 
     ); 

    //json string the data for the POST 
    $query_string = ''; 
    foreach($fields as $key => $array) { 
     $query_string .= '{"' . urlencode($key).'":[{'; 
     foreach($array as $k => $v) { 
      $query_string .= '"' . urlencode($k) . '":"' . urlencode($v) . '",'; 
     } 
    } 
    $str = rtrim($query_string , ','); 
    $fstr = $str.'}]}'; 

    $length = strlen($fstr); 
    //open connection 
    $ch = curl_init(); 
    //test connection 
    if (FALSE === $ch) 
    throw new Exception('failed to initialize'); 

    //set options 
    $header = array('Content-type: application/json'); 
    curl_setopt($ch,CURLOPT_URL, $url); 
    curl_setopt($ch,CURLOPT_HTTPHEADER, $header); 
    curl_setopt($ch,CURLOPT_POSTFIELDS, $fstr); 

    $result = curl_exec($ch); 

    //dump in case of error 
    if (FALSE === $result){ 
     var_dump(curl_error($ch)); 
     var_dump(curl_getinfo($ch)); 
    } 

    //close connection 
    curl_close($ch); 
}