商家 API 程式碼範例，用於列出資料來源。
AppsScript
// 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.
/**
* Lists all data sources for a given Merchant Center account.
*/
function listDataSources() {
// IMPORTANT:
// Enable the Merchant API DataSources sub-API Advanced Service and call it
// "MerchantApiDataSources"
// Replace this with your Merchant Center ID.
const accountId = '<MERCHANT_CENTER_ID>';
// Construct the parent name
const parent = 'accounts/' + accountId;
let dataSources = [];
let primaryDataSources = [];
try {
console.log('Sending list DataSources request');
let pageToken;
let pageSize = 10;
// Call the DataSources.list API method. Use the pageToken to iterate through
// all pages of results.
do {
response =
MerchantApiDataSources.Accounts.DataSources.list(parent, {pageSize, pageToken});
for (const datasource of response.dataSources) {
dataSources.push(datasource);
if (datasource.primaryProductDataSource) {
primaryDataSources.push(datasource);
}
}
pageToken = response.nextPageToken;
} while (pageToken); // Exits when there is no next page token.
console.log('Retrieved ' + dataSources.length + ' data sources.');
console.log(
'There were ' + primaryDataSources.length +
' primary product data sources.');
} catch (e) {
console.log('ERROR!');
console.log(e);
}
}
Java
// Copyright 2024 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.datasources.v1;
import com.google.api.gax.core.FixedCredentialsProvider;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.shopping.merchant.datasources.v1.DataSource;
import com.google.shopping.merchant.datasources.v1.DataSourcesServiceClient;
import com.google.shopping.merchant.datasources.v1.DataSourcesServiceClient.ListDataSourcesPagedResponse;
import com.google.shopping.merchant.datasources.v1.DataSourcesServiceSettings;
import com.google.shopping.merchant.datasources.v1.ListDataSourcesRequest;
import java.util.ArrayList;
import shopping.merchant.samples.utils.Authenticator;
import shopping.merchant.samples.utils.Config;
/** This class demonstrates how to list all the datasources for a given Merchant Center account */
public class ListDataSourcesSample {
private static String getParent(String accountId) {
return String.format("accounts/%s", accountId);
}
public static ArrayList<DataSource> listDataSources(Config config) throws Exception {
// Obtains OAuth token based on the user's configuration.
GoogleCredentials credential = new Authenticator().authenticate();
// Creates service settings using the credentials retrieved above.
DataSourcesServiceSettings dataSourcesServiceSettings =
DataSourcesServiceSettings.newBuilder()
.setCredentialsProvider(FixedCredentialsProvider.create(credential))
.build();
// Creates parent to identify the account from which to list all the datasources.
String parent = getParent(config.getAccountId().toString());
// Calls the API and catches and prints any network failures/errors.
try (DataSourcesServiceClient dataSourcesServiceClient =
DataSourcesServiceClient.create(dataSourcesServiceSettings)) {
// The parent has the format: accounts/{account}
ListDataSourcesRequest request =
ListDataSourcesRequest.newBuilder().setParent(parent).build();
System.out.println("Sending list datasources request:");
ListDataSourcesPagedResponse response = dataSourcesServiceClient.listDataSources(request);
int count = 0;
ArrayList<DataSource> dataSources = new ArrayList<DataSource>();
ArrayList<DataSource> justPrimaryDataSources = new ArrayList<DataSource>();
// Iterates over all rows in all pages and prints the datasource in each row.
// Automatically uses the `nextPageToken` if returned to fetch all pages of data.
for (DataSource element : response.iterateAll()) {
System.out.println(element);
count++;
dataSources.add(element);
// The below lines show how to filter datasources based on type.
// `element.hasSupplementalProductDataSource()` would give you supplemental
// datasources, etc.
if (element.hasPrimaryProductDataSource()) {
justPrimaryDataSources.add(element);
}
}
System.out.print("The following count of elements were returned: ");
System.out.println(count);
return dataSources;
} catch (Exception e) {
System.out.println(e);
System.exit(1);
return null; // Necessary to satisfy the compiler as we're not returning an
// ArrayList<DataSource> on failure.
}
}
public static void main(String[] args) throws Exception {
Config config = Config.load();
listDataSources(config);
}
}
Node.js
// 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.
'use strict';
const fs = require('fs');
const authUtils = require('../../authentication/authenticate.js'); // Assuming auth utils are in this relative path
const {DataSourcesServiceClient} = require('@google-shopping/datasources').v1; // Use the correct client and version
/**
* This function lists all data sources for a given Merchant Center account.
*/
async function listDataSourcesWrapper() {
// Retrieve configuration settings, including the path to the merchant info file.
const config = authUtils.getConfig();
// Read the merchant ID from the specified JSON file.
const merchantInfo = JSON.parse(fs.readFileSync(config.merchantInfoFile, 'utf8'));
const merchantId = merchantInfo.merchantId;
// Obtain authenticated credentials for the API call.
const authClient = await authUtils.getOrGenerateUserCredentials();
// Configure the client options, including the authentication client.
const clientOptions = {
authClient: authClient,
};
// Create a new instance of the DataSourcesServiceClient using the options.
const dataSourceClient = new DataSourcesServiceClient(clientOptions);
await callListDataSources(dataSourceClient, merchantId);
}
/**
* Calls the listDataSources API and processes the response.
* @param {!DataSourcesServiceClient} dataSourceClient The authenticated client.
* @param {string} merchantId The Merchant Center account ID.
*/
async function callListDataSources(dataSourceClient, merchantId) {
// Construct the parent resource name string required by the API.
// Format: accounts/{merchantId}
const parent = `accounts/${merchantId}`;
// Prepare the request object for the listDataSources API call.
const request = {
parent: parent,
};
console.log('Sending list data sources request:');
try {
// Call the API to list data sources. This returns an async iterable.
const iterable = dataSourceClient.listDataSourcesAsync(request);
let count = 0;
const allDataSources = [];
const primaryDataSources = [];
// Iterate asynchronously over all data sources returned by the API.
// The client library handles pagination automatically.
for await (const dataSource of iterable) {
console.log(JSON.stringify(dataSource, null, 2)); // Print the full data source object
count++;
allDataSources.push(dataSource);
// Check if the data source is a primary product data source.
// In Node.js protobufs, check for the presence of the specific oneof field.
if (dataSource.primaryProductDataSource) {
primaryDataSources.push(dataSource);
}
}
// Print the total number of data sources found.
console.log(`The following count of elements were returned: ${count}`);
// You can optionally log the filtered primary data sources
// console.log('Primary Product Data Sources:', primaryDataSources);
} catch (error) {
console.error(`Failed to list data sources: ${error.message}`);
}
}
// Execute the main wrapper function and handle potential promise rejection.
listDataSourcesWrapper().catch(error => {
console.error(error.message);
process.exitCode = 1;
});
PHP
<?php
/**
* Copyright 2024 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 Google\ApiCore\ApiException;
use Google\Shopping\Merchant\DataSources\V1\Client\DataSourcesServiceClient;
use Google\Shopping\Merchant\DataSources\V1\DataSource;
use Google\Shopping\Merchant\DataSources\V1\ListDataSourcesRequest;
/**
* Class to demonstrate listing all the datasources for a given Merchant Center
* account.
*/
class ListDataSourcesSample
{
/**
* Lists all DataSources for the given Merchant Center account.
*
* @param int $merchantId The Merchant Center Account ID.
* @return array An array of DataSources.
*/
public function listDataSources(int $merchantId): array
{
// 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.
$dataSourcesServiceClient = new DataSourcesServiceClient($options);
$parent = sprintf('accounts/%s', $merchantId);
// Creates the request.
$request = (new ListDataSourcesRequest())
->setParent($parent);
print('Sending list datasources request:' . PHP_EOL);
// Calls the API and catches and prints any network failures/errors.
try {
$response = $dataSourcesServiceClient->listDataSources($request);
$dataSources = [];
$justPrimaryDataSources = [];
/** @var DataSource $element */
foreach ($response as $element) {
print($element->serializeToJsonString() . PHP_EOL);
$dataSources[] = $element;
// The below lines show how to filter datasources based on type.
// `element.hasSupplementalProductDataSource()` would give you supplemental
// datasources, etc.
if ($element->hasPrimaryProductDataSource()) {
$justPrimaryDataSources[] = $element;
}
}
print('The following count of datasources were returned: ' . count($dataSources) . PHP_EOL);
print('... of which are primary datasources: ' . count($justPrimaryDataSources) . PHP_EOL);
return $dataSources;
} catch (ApiException $ex) {
print('Call failed with message: ' . $ex->getMessage() . PHP_EOL);
return [];
}
}
// Helper to execute the sample.
public function callSample(): void
{
$config = Config::generateConfig();
// The Merchant Center Account ID.
$merchantId = $config['accountId'];
self::listDataSources($merchantId);
}
}
$sample = new ListDataSourcesSample();
$sample->callSample();
Python
# -*- coding: utf-8 -*-
# Copyright 2024 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
#
# 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.
"""A module to list DataSources."""
from examples.authentication import configuration
from examples.authentication import generate_user_credentials
from google.shopping import merchant_datasources_v1
_ACCOUNT = configuration.Configuration().read_merchant_info()
_PARENT = f"accounts/{_ACCOUNT}"
def list_data_sources():
"""Lists the `DataSource` resources for a given account."""
# Gets OAuth Credentials.
credentials = generate_user_credentials.main()
# Creates a client.
client = merchant_datasources_v1.DataSourcesServiceClient(
credentials=credentials
)
# Creates the request.
request = merchant_datasources_v1.ListDataSourcesRequest(parent=_PARENT)
# Makes the request and catch and print any error messages.
try:
response = client.list_data_sources(request=request)
primary_data_sources = []
for data_source in response.data_sources:
# PrimaryProductDataSource is a oneOf field. If it is set, then this is a
# primary data source.
if data_source.primary_product_data_source:
primary_data_sources.append(data_source)
print(
f"List request successful. You have {len(response.data_sources)} total"
f" data sources, of which {len(primary_data_sources)} are primary data"
" sources"
)
except RuntimeError as e:
print("List request failed")
print(e)
if __name__ == "__main__":
list_data_sources()