我正在尝试使用Google Analytics Reporting API V4，并且按此链接中所述进行了所有操作：reporting api v4
现在我收到此错误：
Fatal error: Uncaught exception 'Google_Service_Exception' with message '{ "error": "invalid_grant", "error_description": "Invalid JWT Signature." } ' in C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Http\REST.php:118 Stack trace: #0 C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Http\REST.php(94): Google_Http_REST::decodeHttpResponse(Object(GuzzleHttp\Psr7\Response), Object(GuzzleHttp\Psr7\Request), 'Google_Service_...') #1 [internal function]: Google_Http_REST::doExecute(Object(GuzzleHttp\Client), Object(GuzzleHttp\Psr7\Request), 'Google_Service_...') #2 C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Task\Runner.php(181): call_user_func_array(Array, Array) #3 C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Http\REST.php(58): Google_Task_Runner->run() #4 C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Client.php(779): Google_Http_REST::execute(Object(GuzzleHttp\Client), Object(GuzzleHttp\Psr7\Request), 'Google_Service_...', Array) #5 C:\xampp\htdocs\gaapi\vendor\google\a in C:\xampp\htdocs\gaapi\vendor\google\apiclient\src\Google\Http\REST.php on line 118
这是rest.php，我从以下位置得到此错误：
<?php
/*
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
use Google\Auth\HttpHandler\HttpHandlerFactory;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\Response;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* This class implements the RESTful transport of apiServiceRequest()'s
*/
class Google_Http_REST
{
/**
* Executes a Psr\Http\Message\RequestInterface and (if applicable) automatically retries
* when errors occur.
*
* @param Google_Client $client
* @param Psr\Http\Message\RequestInterface $req
* @return array decoded result
* @throws Google_Service_Exception on server side error (ie: not authenticated,
* invalid or malformed post body, invalid url)
*/
public static function execute(
ClientInterface $client,
RequestInterface $request,
$expectedClass = null,
$config = array(),
$retryMap = null
) {
$runner = new Google_Task_Runner(
$config,
sprintf('%s %s', $request->getMethod(), (string) $request->getUri()),
array(get_class(), 'doExecute'),
array($client, $request, $expectedClass)
);
if (!is_null($retryMap)) {
$runner->setRetryMap($retryMap);
}
return $runner->run();
}
/**
* Executes a Psr\Http\Message\RequestInterface
*
* @param Google_Client $client
* @param Psr\Http\Message\RequestInterface $request
* @return array decoded result
* @throws Google_Service_Exception on server side error (ie: not authenticated,
* invalid or malformed post body, invalid url)
*/
public static function doExecute(ClientInterface $client, RequestInterface $request, $expectedClass = null)
{
try {
$httpHandler = HttpHandlerFactory::build($client);
$response = $httpHandler($request);
} catch (RequestException $e) {
// if Guzzle throws an exception, catch it and handle the response
if (!$e->hasResponse()) {
throw $e;
}
$response = $e->getResponse();
// specific checking for Guzzle 5: convert to PSR7 response
if ($response instanceof \GuzzleHttp\Message\ResponseInterface) {
$response = new Response(
$response->getStatusCode(),
$response->getHeaders() ?: [],
$response->getBody(),
$response->getProtocolVersion(),
$response->getReasonPhrase()
);
}
}
return self::decodeHttpResponse($response, $request, $expectedClass);
}
/**
* Decode an HTTP Response.
* @static
* @throws Google_Service_Exception
* @param Psr\Http\Message\RequestInterface $response The http response to be decoded.
* @param Psr\Http\Message\ResponseInterface $response
* @return mixed|null
*/
public static function decodeHttpResponse(
ResponseInterface $response,
RequestInterface $request = null,
$expectedClass = null
) {
$code = $response->getStatusCode();
// retry strategy
if ((intVal($code)) >= 400) {
// if we errored out, it should be safe to grab the response body
$body = (string) $response->getBody();
// Check if we received errors, and add those to the Exception for convenience
throw new Google_Service_Exception($body, $code, null, self::getResponseErrors($body));
}
// Ensure we only pull the entire body into memory if the request is not
// of media type
$body = self::decodeBody($response, $request);
if ($expectedClass = self::determineExpectedClass($expectedClass, $request)) {
$json = json_decode($body, true);
return new $expectedClass($json);
}
return $response;
}
private static function decodeBody(ResponseInterface $response, RequestInterface $request = null)
{
if (self::isAltMedia($request)) {
// don't decode the body, it's probably a really long string
return '';
}
return (string) $response->getBody();
}
private static function determineExpectedClass($expectedClass, RequestInterface $request = null)
{
// "false" is used to explicitly prevent an expected class from being returned
if (false === $expectedClass) {
return null;
}
// if we don't have a request, we just use what's passed in
if (is_null($request)) {
return $expectedClass;
}
// return what we have in the request header if one was not supplied
return $expectedClass ?: $request->getHeaderLine('X-Php-Expected-Class');
}
private static function getResponseErrors($body)
{
$json = json_decode($body, true);
if (isset($json['error']['errors'])) {
return $json['error']['errors'];
}
return null;
}
private static function isAltMedia(RequestInterface $request = null)
{
if ($request && $qs = $request->getUri()->getQuery()) {
parse_str($qs, $query);
if (isset($query['alt']) && $query['alt'] == 'media') {
return true;
}
}
return false;
}
}
这是调用API的php文件：
<?php
// Load the Google API PHP Client Library.
require_once __DIR__ . '/vendor/autoload.php';
$analytics = initializeAnalytics();
$response = getReport($analytics);
printResults($response);
function initializeAnalytics()
{
// Creates and returns the Analytics Reporting service object.
// Use the developers console and download your service account
// credentials in JSON format. Place them in this directory or
// change the key file location if necessary.
$KEY_FILE_LOCATION = __DIR__ . '/DMCwizard-90f81ab1b049.json';
// Create and configure a new client object.
$client = new Google_Client();
$client->setApplicationName("Hello Analytics Reporting");
$client->setAuthConfig($KEY_FILE_LOCATION);
$client->setScopes(['https://www.googleapis.com/auth/analytics.readonly']);
$analytics = new Google_Service_AnalyticsReporting($client);
return $analytics;
}
function getReport(&$analytics) {
// Replace with your view ID, for example XXXX.
$VIEW_ID = "123747116";
// Create the DateRange object.
$dateRange = new Google_Service_AnalyticsReporting_DateRange();
$dateRange->setStartDate("7daysAgo");
$dateRange->setEndDate("today");
// Create the Metrics object.
$sessions = new Google_Service_AnalyticsReporting_Metric();
$sessions->setExpression("ga:sessions");
$sessions->setAlias("sessions");
// Create the ReportRequest object.
$request = new Google_Service_AnalyticsReporting_ReportRequest();
$request->setViewId($VIEW_ID);
$request->setDateRanges($dateRange);
$request->setMetrics(array($sessions));
$body = new Google_Service_AnalyticsReporting_GetReportsRequest();
$body->setReportRequests( array( $request) );
return $analytics->reports->batchGet( $body );
}
function printResults(&$reports) {
for ( $reportIndex = 0; $reportIndex < count( $reports ); $reportIndex++ ) {
$report = $reports[ $reportIndex ];
$header = $report->getColumnHeader();
$dimensionHeaders = $header->getDimensions();
$metricHeaders = $header->getMetricHeader()->getMetricHeaderEntries();
$rows = $report->getData()->getRows();
for ( $rowIndex = 0; $rowIndex < count($rows); $rowIndex++) {
$row = $rows[ $rowIndex ];
$dimensions = $row->getDimensions();
$metrics = $row->getMetrics();
for ($i = 0; $i < count($dimensionHeaders) && $i < count($dimensions); $i++) {
print($dimensionHeaders[$i] . ": " . $dimensions[$i] . "\n");
}
for ($j = 0; $j < count( $metricHeaders ) && $j < count( $metrics ); $j++) {
$entry = $metricHeaders[$j];
$values = $metrics[$j];
print("Metric type: " . $entry->getType() . "\n" );
for ( $valueIndex = 0; $valueIndex < count( $values->getValues() ); $valueIndex++ ) {
$value = $values->getValues()[ $valueIndex ];
print($entry->getName() . ": " . $value . "\n");
}
}
}
}
}
如果您需要我为您上传其他文件，请告诉我。
参考方案
我应该只将导致异常的部分代码放入try catch块中。而且工作正常。因此，如果您想使用GA report API版本4，则只需添加此try catch，其他所有事情都必须与document完全一样，然后就可以完成。
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