Merchant API code sample to insert merchant reviews asynchronously.
Java
// Copyright 2025 Google LLC
//
// 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
//
// https://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.
package
shopping.merchant.samples.reviews.v1beta
;
import
com.google.api.core.ApiFuture
;
import
com.google.api.core.ApiFutureCallback
;
import
com.google.api.core.ApiFutures
;
import
com.google.api.gax.core.FixedCredentialsProvider
;
import
com.google.auth.oauth2.GoogleCredentials
;
import
com.google.common.util.concurrent.MoreExecutors
;
import
com.google.protobuf.Timestamp
;
import
com.google.shopping.merchant.reviews.v1beta.InsertMerchantReviewRequest
;
import
com.google.shopping.merchant.reviews.v1beta.MerchantReview
;
import
com.google.shopping.merchant.reviews.v1beta.MerchantReviewAttributes
;
import
com.google.shopping.merchant.reviews.v1beta.MerchantReviewsServiceClient
;
import
com.google.shopping.merchant.reviews.v1beta.MerchantReviewsServiceSettings
;
import
java.util.ArrayList
;
import
java.util.List
;
import
java.util.Random
;
import
java.util.stream.Collectors
;
import
shopping.merchant.samples.utils.Authenticator
;
import
shopping.merchant.samples.utils.Config
;
/** This class demonstrates how to insert multiple merchant reviews asynchronously. */
public
class
InsertMerchantReviewsAsyncSample
{
private
static
String
generateRandomString
()
{
String
characters
=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
;
Random
random
=
new
Random
();
StringBuilder
sb
=
new
StringBuilder
(
8
);
for
(
int
i
=
0
;
i
<
8
;
i
++
)
{
sb
.
append
(
characters
.
charAt
(
random
.
nextInt
(
characters
.
length
())));
}
return
sb
.
toString
();
}
// Returns a merchant review with a random ID.
private
static
MerchantReview
createMerchantReview
(
String
accountId
)
{
String
merchantReviewId
=
generateRandomString
();
MerchantReviewAttributes
attributes
=
MerchantReviewAttributes
.
newBuilder
()
.
setTitle
(
"Great Merchant!"
)
.
setContent
(
"Would buy there again."
)
.
setMinRating
(
1
)
.
setMaxRating
(
5
)
.
setRating
(
4
)
.
setReviewTime
(
Timestamp
.
newBuilder
().
setSeconds
(
1731165684
).
build
())
.
setReviewLanguage
(
"en-US"
)
.
build
();
return
MerchantReview
.
newBuilder
()
.
setMerchantReviewId
(
merchantReviewId
)
.
setMerchantReviewAttributes
(
attributes
)
.
build
();
}
public
static
void
asyncInsertMerchantReviews
(
String
accountId
,
String
dataSourceId
)
throws
Exception
{
GoogleCredentials
credential
=
new
Authenticator
().
authenticate
();
MerchantReviewsServiceSettings
merchantReviewsServiceSettings
=
MerchantReviewsServiceSettings
.
newBuilder
()
.
setCredentialsProvider
(
FixedCredentialsProvider
.
create
(
credential
))
.
build
();
try
(
MerchantReviewsServiceClient
merchantReviewsServiceClient
=
MerchantReviewsServiceClient
.
create
(
merchantReviewsServiceSettings
))
{
// Arbitrarily creates five merchant reviews with random IDs.
List<InsertMerchantReviewRequest>
requests
=
new
ArrayList
<> ();
for
(
int
i
=
0
;
i
<
5
;
i
++
)
{
InsertMerchantReviewRequest
request
=
InsertMerchantReviewRequest
.
newBuilder
()
.
setParent
(
String
.
format
(
"accounts/%s"
,
accountId
))
.
setMerchantReview
(
createMerchantReview
(
accountId
))
// Must be a merchant reviews data source. In other words, a data source whose
// "type"
// is MerchantReviewDataSource.
.
setDataSource
(
String
.
format
(
"accounts/%s/dataSources/%s"
,
accountId
,
dataSourceId
))
.
build
();
requests
.
add
(
request
);
}
// Inserts the merchant reviews.
List<ApiFuture<MerchantReview>
>
futures
=
requests
.
stream
()
.
map
(
request
-
>
merchantReviewsServiceClient
.
insertMerchantReviewCallable
()
.
futureCall
(
request
))
.
collect
(
Collectors
.
toList
());
// Creates callback to handle the responses when all are ready.
ApiFuture<List<MerchantReview>
>
responses
=
ApiFutures
.
allAsList
(
futures
);
ApiFutures
.
addCallback
(
responses
,
new
ApiFutureCallback<List<MerchantReview>
> ()
{
@Override
public
void
onSuccess
(
List<MerchantReview>
results
)
{
System
.
out
.
println
(
"Inserted merchant reviews below:"
);
System
.
out
.
println
(
results
);
}
@Override
public
void
onFailure
(
Throwable
throwable
)
{
System
.
out
.
println
(
throwable
);
}
},
MoreExecutors
.
directExecutor
());
}
catch
(
Exception
e
)
{
System
.
out
.
println
(
e
);
}
}
public
static
void
main
(
String
[]
args
)
throws
Exception
{
Config
config
=
Config
.
load
();
asyncInsertMerchantReviews
(
config
.
getAccountId
().
toString
(),
"YOUR_DATA_SOURCE_ID"
);
}
}
PHP
< ?php
/**
* Copyright 2025 Google LLC
*
* 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
*
* https://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.
*/
require_once __DIR__ . '/../../../vendor/autoload.php';
require_once __DIR__ . '/../../Authentication/Authentication.php';
require_once __DIR__ . '/../../Authentication/Config.php';
use GuzzleHttp\Promise\Utils;
use Google\Protobuf\Timestamp;
use Google\Shopping\Merchant\Reviews\V1beta\Client\MerchantReviewsServiceClient;
use Google\Shopping\Merchant\Reviews\V1beta\InsertMerchantReviewRequest;
use Google\Shopping\Merchant\Reviews\V1beta\MerchantReview;
use Google\Shopping\Merchant\Reviews\V1beta\MerchantReviewAttributes;
/**
* This class demonstrates how to insert multiple merchant reviews asynchronously.
*/
class InsertMerchantReviewsAsyncSample
{
private const DATA_SOURCE_ID = '<DATA_SOURCE_ID>';
/**
* Generates a random string of 8 alphanumeric characters.
* @return string A random string.
*/
private static function generateRandomString(): string
{
$characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$randomString = '';
$length = 8;
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[random_int(0, strlen($characters) - 1)];
}
return $randomString;
}
/**
* Creates a sample MerchantReview object with a random ID.
* @return MerchantReview A sample MerchantReview object.
*/
private static function createMerchantReview(): MerchantReview
{
$merchantReviewId = self::generateRandomString();
$attributes = (new MerchantReviewAttributes())
->setTitle('Great Merchant!')
->setContent('Would buy there again.')
->setMinRating(1)
->setMaxRating(5)
->setRating(4)
->setReviewTime(new Timestamp(['seconds' => 1731165684]))
->setReviewLanguage('en-US');
return (new MerchantReview())
->setMerchantReviewId($merchantReviewId)
->setAttributes($attributes);
}
/**
* Inserts multiple merchant reviews into your Merchant Center account asynchronously.
*
* @param array $config The configuration data for authentication and account ID.
* @param string $dataSourceId The ID of the data source for the reviews.
*/
public static function asyncInsertMerchantReviewsSample(array $config, string $dataSourceId): void
{
// Gets the OAuth credentials to make the request.
$credentials = Authentication::useServiceAccountOrTokenFile();
// Creates options config containing credentials for the client to use.
$options = ['credentials' => $credentials];
// Creates a client.
$merchantReviewsServiceClient = new MerchantReviewsServiceClient($options);
$parent = sprintf('accounts/%s', $config['accountId']);
$dataSource = sprintf('accounts/%s/dataSources/%s', $config['accountId'], $dataSourceId);
$insertedReviews = [];
$errors = [];
$promises = [];
// Inserts 5 merchant reviews
for ($i = 0; $i < 5; $i++) {
try {
$merchantReview = self::createMerchantReview();
$merchantReviewId = $merchantReview->getMerchantReviewId();
$request = (new InsertMerchantReviewRequest())
->setParent($parent)
->setMerchantReview($merchantReview)
->setDataSource($dataSource);
printf("Dispatching insert request for Merchant Review ID: %s%s", $merchantReviewId, PHP_EOL);
// Store the promise, keyed by a unique identifier for this review
// This helps match responses/errors back to the original request.
$promises[$merchantReviewId] = $merchantReviewsServiceClient->insertMerchantReviewAsync($request);
} catch (Exception $e) {
printf(
"Error preparing/dispatching merchant reviews %s",
$e->getMessage(),
PHP_EOL
);
}
}
if (empty($promises)) {
echo "No review insert requests were dispatched." . PHP_EOL;
} else {
echo "All review insert requests dispatched. Waiting for responses..." . PHP_EOL;
// Wait for all the promises to settle (either fulfilled or rejected)
// Utils::settle() returns an array of results, each with 'state' and 'value' or 'reason'
$results = Utils::settle($promises)->wait();
$insertedReviewsResponses = [];
$errors = [];
foreach ($results as $merchantReviewId => $result) {
if ($result['state'] === 'fulfilled') {
$response = $result['value']; // This is the actual response object from the API
printf("Successfully inserted merchant review ID: %s%s", $merchantReviewId, PHP_EOL);
$insertedReviewsResponses[] = $response;
} elseif ($result['state'] === 'rejected') {
$reason = $result['reason']; // This is the exception object
printf(
"Error inserting merchant review Id: %s. %s",
$merchantReviewId,
$reason->getMessage(),
PHP_EOL
);
$errors[] = ['reviewId' => $merchantReviewId, 'reason' => $reason];
}
}
// Now $insertedReviewsResponses contains actual successful response objects
// And $errors contains details about the failed requests.
printf("Processing complete. Successful inserts: %d, Errors: %d%s", count($insertedReviewsResponses), count($errors), PHP_EOL);
}
}
/**
* Helper to execute the sample.
*/
public function callSample(): void
{
$config = Config::generateConfig();
self::asyncInsertMerchantReviewsSample($config, self::DATA_SOURCE_ID);
}
}
$sample = new InsertMerchantReviewsAsyncSample();
$sample->callSample();
