Getting blank response from Google Talent API - php

Question

I am targeting to load Google Jobs search result in my custom website.
So for that I created account on google and enable Google Talent API. After enable billing on google cloud API account, they allow me request to this API using API Key and Service account credentials.
I am currently using PHP with the use of api-client-php library.
For that I have download .json file for credential (client_secret.json) from google Console Talent Platform.
Here is my sample code in PHP.
require 'vendor/autoload.php';
// Instantiate the client
$client = new Google_Client();
$api_key = 'AdsadsIzaSyBYAMxEPPasdadadw5VHITCdREQW7WYeIGs8jRlUYqlzLM';
$client->setDeveloperKey($api_key);
$client->setAuthConfig(getcwd() . '/client_secret.json');
$client->setScopes(array(
'https://www.googleapis.com/auth/jobs',
'https://www.googleapis.com/auth/cloud-platform'
));
$jobs = new Google_Service_JobService($client);
$location='USA';
// Set the Metadata
$requestMetadata = new Google_Service_JobService_RequestMetadata();
$requestMetadata->setUserId('000aaaa');
$requestMetadata->setSessionId('000aaaa-1212-21212');
$requestMetadata->setDomain('www.google.com');
$jobQuery = new Google_Service_JobService_JobQuery();
$keyword='software OR java';
$jobQuery->setQuery($keyword);
// Search Job Request
$searchRequest = new Google_Service_JobService_SearchJobsRequest();
$searchRequest->setRequestMetadata($requestMetadata);
$searchRequest->setQuery($jobQuery);
$searchRequest->setMode('JOB_SEARCH');
$jobService = new Google_Service_JobService($client);
$response = $jobService->jobs->search($searchRequest);
echo "<pre>";
print_r($response);
print_r($response->matchingJobs);
While sending this request, We are getting matchingjobs blank array but $response have some object array. which is something like not output but just request information.
here is the response which we are getting so far using Talent Search API.
Google_Service_JobService_SearchJobsResponse Object
(
[collection_key:protected] => matchingJobs
[appliedCommuteFilterType:protected] => Google_Service_JobService_CommutePreference
[appliedCommuteFilterDataType:protected] =>
[appliedJobLocationFiltersType:protected] => Google_Service_JobService_JobLocation
[appliedJobLocationFiltersDataType:protected] => array
[estimatedTotalSize] =>
[histogramResultsType:protected] => Google_Service_JobService_HistogramResults
[histogramResultsDataType:protected] =>
[jobView] =>
[matchingJobsType:protected] => Google_Service_JobService_MatchingJob
[matchingJobsDataType:protected] => array
[metadataType:protected] => Google_Service_JobService_ResponseMetadata
[metadataDataType:protected] =>
[nextPageToken] =>
[numJobsFromBroadenedQuery] => 0
[spellResultType:protected] => Google_Service_JobService_SpellingCorrection
[spellResultDataType:protected] =>
[totalSize] =>
[internal_gapi_mappings:protected] => Array
(
)
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
[metadata] => Google_Service_JobService_ResponseMetadata Object
(
[collection_key:protected] => experimentIdList
[experimentIdList] => Array
(
[0] => 11300310
[1] => 11300342
)
[mode] => JOB_SEARCH
[requestId] => f5cacd36-db29-4d65-851f-34a97c98af79:APAb7IRQAVop4QZ6rC2OlKjcEARRJQHI8w==
[internal_gapi_mappings:protected] => Array
(
)
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
)
Array
(
)
I am confuse here, Talent API can search and load google Jobs on our website OR we need to create company and jobs and they just provide Advanced search filter using AI and ML ?
Lets if they provide google Jobs on our website then what is wrong in my code ?
Please suggest me.

Answer 1

Google's Talent API only works with data you provide it, so yes, you should create companies and jobs and then apply the searches to those jobs.
The second step in the checklist they've published for launching apps that use this API is Index companies and jobs, with clear mentions of these being from your own database:
Create at least one Company. We recommend creating Company objects for
all companies in your database with open jobs.
Create Jobs for your Companies. We recommend creating Job objects for
all open jobs in your database.
Additional proof that supports this disappointing reality is an article published by Ivan Davchev after the Google conference where this API was announced:
What Is Google Jobs API?
It is a turn-key solution to searching your jobs. Like most cloud-based search > solutions, you need to feed it documents (jobs) which it indexes and makes searchable.
[...]
It is not an aggregator and does not offer “all jobs in the world” out of the box. > So you can’t build an Indeed competitor in an afternoon with this API. It only searches > what you provide it, which is why it makes sense for job boards and applicant tracking > systems (ATS) to use it — jobs are posted on and managed by those systems.