Empty batch encountered error in DoubleClick Search API using google-api-php-client

Question

While uploading offline conversion to DoubleClick Search by using google-api-php-client library i encountered following error.

Fatal error: Uncaught exception 'Google_Service_Exception' with message '{ "error": { "errors": [ { "domain": "global", "reason": "requestValidation", "message": "The request was not valid. Details: [Empty batch encountered.]" } ], "code": 400, "message": "The request was not valid. Details: [Empty batch encountered.]" } } ' in /var/www/ds3/vendor/google/apiclient/src/Google/Http/REST.php:118 Stack trace: #0 /var/www/ds3/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 /var/www/ds3/vendor/google/apiclient/src/Google/Task/Runner.php(176): call_user_func_array(Array, Array) #3 /var/www/ds3/vendor/google/apiclient/src/Google/Http/REST.php(58): Google_Task_Runner->run() #4 /var/www/ds3/vendor/google/apiclient/src/Google/Client.php(788) in /var/www/ds3/vendor/google/apiclient/src/Google/Http/REST.php on line 118

Using following code to insert new conversion

putenv('GOOGLE_APPLICATION_CREDENTIALS=PATH_TO_SERVICE_ACCOUNT_JSONFILE.json');

$Client = new Google_Client();
$Client->useApplicationDefaultCredentials();
$Client->addScope(Google_Service_Doubleclicksearch::DOUBLECLICKSEARCH);

$DS3 = new Google_Service_Doubleclicksearch($Client);

$Conversion = new Google_Service_Doubleclicksearch_Conversion();
$Conversion->setClickId('MY_GCLID');
$Conversion->setConversionId('MY_CONV_ID');
$Conversion->setConversionTimestamp('MY_CONV_TIMESTAMP');
$Conversion->setSegmentationType('FLOODLIGHT');
$Conversion->setSegmentationName('MY_FLOODLIGHT_ACTIVITY_NAME');
$Conversion->setSegmentationType('ACTION');

$ConversionList = new Google_Service_Doubleclicksearch_ConversionList();
$ConversionList->setConversion($Conversion);

$Response = $DS3->conversion->insert($ConversionList);
print_r($Response);

LInks back to github.com/google/google-api-php-client/issues/1213 — DaImTo

Kyle Wiering Kyle Wiering · Accepted Answer · 2017-09-28T17:27:28

Took me a while today - but I think I was able to recreate your issue AND find a solution. The trouble lies in the way the conversion list is built.

With your current approach, you'll get an object that looks something like:

{
    {
        "clickId": "MY_GCLID",
        "segmentationName": "MY_SEGMENTATION_NAME",
       .
       .
       .
    }
}

What you want, is something like this:

{
    "conversion": [{
        "clickId": "MY_CLICK",
        "conversionId": "MY_CONV",
        "conversionTimestamp": "MY_TIME",
        "currencyCode": "USD",
        "revenueMicros": "SOMEMONEY",
        "type": "TRANSACTION"
    }],
    "kind": "doubleclicksearch#conversionList"
}

The alteration to your code would be around the list itself:

$ConversionList = new Google_Service_Doubleclicksearch_ConversionList();
$ConversionList->setKind('doubleclicksearch#conversionList');
$ConversionList['conversion'] = [$Conversion]; // iterator magic

charles proxy documented in the google docs was quite useful in identifying the payload issue.
The Google developr api's helped with the rest

Empty batch encountered error in DoubleClick Search API using google-api-php-client

1 Answers