Parallel report download

  • This example demonstrates how to download reports from multiple Google Ads accounts concurrently.

  • The example provides code implementations in Java, C#, Python, and Ruby.

  • It includes predefined Google Ads Query Language (GAQL) strings for campaign and ad group reports.

  • The code handles potential errors during report downloads and reports success or failure for each customer ID and query combination.

  • Note that parallelizing requests to the same customer ID is not recommended due to rate limits.

Java

// Copyright 2020 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 com.google.ads.googleads.examples.reporting;

import com.beust.jcommander.Parameter;
import com.google.ads.googleads.examples.utils.ArgumentNames;
import com.google.ads.googleads.examples.utils.CodeSampleParams;
import com.google.ads.googleads.lib.GoogleAdsClient;
import com.google.ads.googleads.v25.errors.GoogleAdsError;
import com.google.ads.googleads.v25.errors.GoogleAdsException;
import com.google.ads.googleads.v25.services.GoogleAdsServiceClient;
import com.google.ads.googleads.v25.services.SearchGoogleAdsStreamRequest;
import com.google.ads.googleads.v25.services.SearchGoogleAdsStreamResponse;
import com.google.api.gax.rpc.ResponseObserver;
import com.google.api.gax.rpc.StreamController;
import com.google.common.collect.ImmutableList;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.SettableFuture;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicLong;

/**
 * Shows how to download a set of reports from a list of accounts in parallel.
 *
 * <p>If you need to obtain a list of accounts, please see the {@link
 * com.google.ads.googleads.examples.accountmanagement.GetAccountHierarchy} or {@link
 * com.google.ads.googleads.examples.accountmanagement.ListAccessibleCustomers} examples.
 */
public class ParallelReportDownload {

  // Adjust as required.
  /** Defines the Google Ads Query Language (GAQL) query strings to run for each customer ID. */
  private static final List<String> GAQL_QUERY_STRINGS =
      ImmutableList.of(
          "SELECT campaign.id, metrics.impressions, metrics.clicks"
              + " FROM campaign"
              + " WHERE segments.date DURING LAST_30_DAYS",
          "SELECT campaign.id, ad_group.id, metrics.impressions, metrics.clicks"
              + " FROM ad_group"
              + " WHERE segments.date DURING LAST_30_DAYS");

  private static class ParallelReportDownloadParams extends CodeSampleParams {

    @Parameter(
        names = ArgumentNames.CUSTOMER_IDS,
        required = true,
        description = "Specify a comma-separated list of customer IDs to downloads reports from.")
    List<Long> customerIds;

    @Parameter(
        names = ArgumentNames.LOGIN_CUSTOMER_ID,
        description =
            "Optionally specify the manager account ID which provides access to the customer IDs")
    Long loginCustomerId;
  }

  public static void main(String[] args) throws InterruptedException {
    ParallelReportDownloadParams params = new ParallelReportDownloadParams();
    if (!params.parseArguments(args)) {
      // Either pass the required parameters for this example on the command line, or insert them
      // into the code here. See the parameter class definition above for descriptions.
      params.customerIds = ImmutableList.of(Long.valueOf("INSERT CUSTOMER IDS"));
      // Optionally specify the login customer ID if your access to the CIDs is via a manager
      // account.
      // params.loginCustomerId = Long.parseLong("INSERT_LOGIN_CUSTOMER_ID");
    }

    GoogleAdsClient googleAdsClient = null;
    try {
      GoogleAdsClient.Builder builder = GoogleAdsClient.newBuilder().fromPropertiesFile();
      if (params.loginCustomerId != null) {
        builder.setLoginCustomerId(params.loginCustomerId);
      }
      googleAdsClient = builder.build();
    } catch (FileNotFoundException fnfe) {
      System.err.printf(
          "Failed to load GoogleAdsClient configuration from file. Exception: %s%n", fnfe);
      return;
    } catch (IOException ioe) {
      System.err.printf("Failed to create GoogleAdsClient. Exception: %s%n", ioe);
      return;
    }

    try {
      new ParallelReportDownload().runExample(googleAdsClient, params.customerIds);
    } catch (GoogleAdsException gae) {
      // GoogleAdsException is the base class for most exceptions thrown by an API request.
      // Instances of this exception have a message and a GoogleAdsFailure that contains a
      // collection of GoogleAdsErrors that indicate the underlying causes of the
      // GoogleAdsException.
      System.err.printf(
          "Request ID %s failed due to GoogleAdsException. Underlying errors:%n",
          gae.getRequestId());
      int i = 0;
      for (GoogleAdsError googleAdsError : gae.getGoogleAdsFailure().getErrorsList()) {
        System.err.printf("  Error %d: %s%n", i++, googleAdsError);
      }
    }
  }

  /**
   * Runs the example.
   *
   * @param googleAdsClient the client library instance for API access.
   * @param customerIds the customer IDs to run against.
   */
  private void runExample(GoogleAdsClient googleAdsClient, List<Long> customerIds)
      throws InterruptedException {
    // Creates a single client which can be shared by all threads.
    // gRPC handles multiplexing parallel requests to the underlying API connection.
    try (GoogleAdsServiceClient serviceClient =
        googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
      // IMPORTANT: You should avoid hitting the same customer ID in parallel. There are rate limits
      // at the customer ID level which are much stricter than limits at the developer token level.
      // Hitting these limits frequently enough will significantly reduce throughput as the client
      // library will automatically retry with exponential back-off before failing the request.
      for (String gaqlQuery : GAQL_QUERY_STRINGS) {
        // Uses a list of futures to make sure that we wait for this report to complete on all
        // customer IDs before proceeding. The Future data type here is just for demonstration.
        List<ListenableFuture<ReportSummary>> futures = new ArrayList<>();

        // Uses the API to retrieve the report for each customer ID.
        for (Long customerId : customerIds) {
          // Uses the gRPC asynchronous API to download the reports in parallel. This saves having
          // to create/manage our own thread pool.
          ResponseCountingObserver responseObserver = new ResponseCountingObserver(customerId);

          // Starts the report download in a background thread.
          serviceClient
              .searchStreamCallable()
              .call(
                  SearchGoogleAdsStreamRequest.newBuilder()
                      .setCustomerId(customerId.toString())
                      .setQuery(gaqlQuery)
                      .build(),
                  responseObserver);

          // Stores a future to retrieve the results.
          futures.add(responseObserver.asFuture());
        }

        // Waits for all pending requests to the current set of customer IDs to complete.
        //
        // This is a naive implementation for illustrative purposes. It is possible to optimize the
        // utilization of each customer ID by providing a queue of work (or similar). However, this
        // would complicate the example code and so is omitted here.
        List<ReportSummary> results = Futures.allAsList(futures).get();

        System.out.println("Report results for query: " + gaqlQuery);
        results.forEach(System.out::println);
      }
    } catch (ExecutionException e) {
      throw new RuntimeException(e);
    }
  }

  /** An observer which records a simple count of the result rows received. */
  private static class ResponseCountingObserver
      implements ResponseObserver<SearchGoogleAdsStreamResponse> {

    private final long customerId;
    private final SettableFuture<ReportSummary> future = SettableFuture.create();
    private final AtomicLong numResponses = new AtomicLong(0);

    ResponseCountingObserver(long customerId) {
      this.customerId = customerId;
    }

    @Override
    public void onStart(StreamController controller) {
      // Nothing to do here.
    }

    @Override
    public void onResponse(SearchGoogleAdsStreamResponse response) {
      // Does something useful with the response. In this case we just count the responses, but
      // could also write the response to a database/file, pass the response on to another method
      // for further processing, etc.
      numResponses.incrementAndGet();
      // Note: this method may be called from multiple threads, though responses will always arrive
      // in the same order as returned by the API.
    }

    @Override
    public void onError(Throwable t) {
      // Notify that this report failed.
      notifyResultReady(new ReportSummary(customerId, numResponses.get(), t));
    }

    @Override
    public void onComplete() {
      // Notify that this report succeeded.
      notifyResultReady(new ReportSummary(customerId, numResponses.get()));
    }

    /** Sets the value on the future and unblocks any threads waiting for result. */
    private void notifyResultReady(ReportSummary summary) {
      future.set(summary);
    }

    /** Gets a {@link ListenableFuture} which represents the result of this stream. */
    ListenableFuture<ReportSummary> asFuture() {
      return future;
    }
  }

  /** Summarizes the result of a reporting API call. */
  private static class ReportSummary {

    private final Long customerId;
    private final long numResponses;
    private final Throwable throwable;

    ReportSummary(Long customerId, long numResponses, Throwable throwable) {
      this.customerId = customerId;
      this.throwable = throwable;
      this.numResponses = numResponses;
    }

    ReportSummary(Long customerId, long numResponses) {
      this(customerId, numResponses, null);
    }

    boolean isSuccess() {
      return throwable == null;
    }

    @Override
    public String toString() {
      return "Customer ID '"
          + customerId
          + "' Number of responses: "
          + numResponses
          + " IsSuccess? "
          + (isSuccess() ? "Yes!" : "No :-( Why? " + throwable.getMessage());
    }
  }
}

      

C#

// Copyright 2020 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.

using CommandLine;
using Google.Ads.Gax.Examples;
using Google.Ads.GoogleAds.Lib;
using Google.Ads.GoogleAds.V25.Errors;
using Google.Ads.GoogleAds.V25.Services;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Google.Ads.GoogleAds.Examples.V25
{
    /// <summary>
    /// Shows how to download a set of reports from a list of accounts in parallel. If you need
    /// to obtain a list of accounts, please see the GetAccountHierarchy or
    /// ListAccessibleCustomers examples.";
    /// </summary>
    public class ParallelReportDownload : ExampleBase
    {
        /// <summary>
        /// Command line options for running the <see cref="ParallelReportDownload"/> example.
        /// </summary>
        public class Options : OptionsBase
        {
            /// <summary>
            /// The Google Ads customer Id.
            /// </summary>
            [Option("customerIds", Required = true, HelpText =
                "The Google Ads customer IDs for which the call is made.")]
            public IEnumerable<long> CustomerIds { get; set; }

            /// <summary>
            /// Optional login customer ID if your access to the CIDs is via a manager account.
            /// </summary>
            [Option("loginCustomerId", Required = false, HelpText =
                "Optional login customer ID if your access to the CIDs is via a manager account.")]
            public long? LoginCustomerId { get; set; }
        }

        /// <summary>
        /// Main method, to run this code example as a standalone application.
        /// </summary>
        /// <param name="args">The command line arguments.</param>
        public static void Main(string[] args)
        {
            Options options = ExampleUtilities.ParseCommandLine<Options>(args);

            ParallelReportDownload codeExample = new ParallelReportDownload();
            Console.WriteLine(codeExample.Description);
            codeExample.Run(new GoogleAdsClient(), options.CustomerIds.ToArray(),
                options.LoginCustomerId);
        }

        // Defines the Google Ads Query Language (GAQL) query strings to run for each customer ID.
        private readonly Dictionary<string, string> GAQL_QUERY_STRINGS =
            new Dictionary<string, string>()
            {
                {
                    "Campaign Query",
                    @"SELECT campaign.id, metrics.impressions, metrics.clicks
                    FROM campaign
                    WHERE segments.date DURING LAST_30_DAYS"
                },
                {
                    "Ad Group Query",
                    @"SELECT campaign.id, ad_group.id, metrics.impressions, metrics.clicks
                    FROM ad_group
                    WHERE segments.date DURING LAST_30_DAYS"
                }
            };

        /// <summary>
        /// Returns a description about the code example.
        /// </summary>
        public override string Description =>
            "Shows how to download a set of reports from a list of accounts in parallel. If you " +
            "need to obtain a list of accounts, please see the GetAccountHierarchy or " +
            "ListAccessibleCustomers examples.";

        /// <summary>
        /// Runs the code example.
        /// </summary>
        /// <param name="client">The Google Ads client.</param>
        /// <param name="customerIds">The Google Ads customer Id.</param>
        /// <param name="loginCustomerId">Optional login customer ID if your access to the CIDs
        ///     is via a manager account.</param>
        public void Run(GoogleAdsClient client, long[] customerIds, long? loginCustomerId)
        {
            // If a manager ID is supplied, update the login credentials.
            if (loginCustomerId.HasValue)
            {
                client.Config.LoginCustomerId = loginCustomerId.ToString();
            }

            // Get the GoogleAdsService. A single client can be shared by all threads.
            GoogleAdsServiceClient googleAdsService = client.GetService(
                Services.V25.GoogleAdsService);

            try
            {
                // Begin downloading reports and block program termination until complete.
                Task task = RunDownloadParallelAsync(googleAdsService, customerIds);
                task.Wait();
            }
            catch (GoogleAdsException e)
            {
                Console.WriteLine("Failure:");
                Console.WriteLine($"Message: {e.Message}");
                Console.WriteLine($"Failure: {e.Failure}");
                Console.WriteLine($"Request ID: {e.RequestId}");
                throw;
            }
        }

        /// <summary>
        /// Initiate all download requests, wait for their completion, and report the results.
        /// </summary>
        /// <param name="googleAdsService">The Google Ads service.</param>
        /// <param name="customerIds">The list of customer IDs from which to request data.</param>
        /// <returns>The asynchronous operation.</returns>
        private async Task RunDownloadParallelAsync(
            GoogleAdsServiceClient googleAdsService, long[] customerIds)
        {
            // List of all requests to ensure that we wait for the reports to complete on all
            // customer IDs before proceeding.
            ConcurrentBag<Task<bool>> tasks =
                new ConcurrentBag<Task<bool>>();

            // Collection of downloaded responses.
            ConcurrentBag<ReportDownload> responses = new ConcurrentBag<ReportDownload>();

            // IMPORTANT: You should avoid hitting the same customer ID in parallel. There are rate
            // limits at the customer ID level which are much stricter than limits at the developer
            // token level. Hitting these limits frequently enough will significantly reduce
            // throughput as the client library will automatically retry with exponential back-off
            // before failing the request.
            Parallel.ForEach(GAQL_QUERY_STRINGS, query =>
                {
                    Parallel.ForEach(customerIds, customerId =>
                    {
                        Console.WriteLine($"Requesting {query.Key} for CID {customerId}.");

                        // Issue an asynchronous search request and add it to the list of requests
                        // in progress.
                        tasks.Add(DownloadReportAsync(googleAdsService, customerId, query.Key,
                            query.Value, responses));
                    });
                }
            );

            Console.WriteLine($"Awaiting results from {tasks.Count} requests...\n");

            // Proceed only when all requests have completed.
            await Task.WhenAll(tasks);

            // Give a summary report for each successful download.
            foreach (ReportDownload reportDownload in responses)
            {
                Console.WriteLine(reportDownload);
            }
        }

        /// <summary>
        /// Initiates one asynchronous report download.
        /// </summary>
        /// <param name="googleAdsService">The Google Ads service client.</param>
        /// <param name="customerId">The customer ID from which data is requested.</param>
        /// <param name="queryKey">The name of the query to be downloaded.</param>
        /// <param name="queryValue">The query for the download request.</param>
        /// <param name="responses">Collection of all successful report downloads.</param>
        /// <returns>The asynchronous operation.</returns>
        /// <exception cref="GoogleAdsException">Thrown if errors encountered in the execution of
        ///     the request.</exception>
        private Task<bool> DownloadReportAsync(
            GoogleAdsServiceClient googleAdsService, long customerId, string queryKey,
            string queryValue, ConcurrentBag<ReportDownload> responses)
        {
            try
            {
                // Issue an asynchronous download request.
                googleAdsService.SearchStream(
                    customerId.ToString(), queryValue,
                    delegate (SearchGoogleAdsStreamResponse resp)
                    {
                        // Store the results.
                        responses.Add(new ReportDownload()
                        {
                            CustomerId = customerId,
                            QueryKey = queryKey,
                            Response = resp
                        });
                    }
                );
                return Task.FromResult(true);
            }
            catch (AggregateException ae)
            {
                Console.WriteLine($"Download failed for {queryKey} and CID {customerId}!");

                GoogleAdsException gae = GoogleAdsException.FromTaskException(ae);

                var download = new ReportDownload()
                {
                    CustomerId = customerId,
                    QueryKey = queryKey,
                    Exception = gae
                };
                if (gae != null)
                {
                    Console.WriteLine($"Message: {gae.Message}");
                    Console.WriteLine($"Failure: {gae.Failure}");
                    Console.WriteLine($"Request ID: {gae.RequestId}");
                    download.Exception = gae;
                }
                else
                {
                    download.Exception = ae;
                }

                responses.Add(download);
                return Task.FromResult(false);
            }
        }

        /// <summary>
        /// Stores a result from a reporting API call. In this case we simply report a count of
        /// the responses, but one could also write the response to a database/file, pass the
        /// response on to another method for further processing, etc.
        /// </summary>
        private class ReportDownload
        {
            internal long CustomerId { get; set; }
            internal string QueryKey { get; set; }
            internal SearchGoogleAdsStreamResponse Response { get; set; }
            internal Exception Exception { get; set; }

            public override string ToString()
            {
                if (Exception != null)
                {
                    return $"Download failed for {QueryKey} and CID {CustomerId}. " +
                        $"Exception: {Exception}";
                }
                else
                {
                    return $"{QueryKey} downloaded for CID {CustomerId}: " +
                        $"{Response.Results.Count} rows returned.";
                }
            }
        }
    }
}

      

PHP

This is not applicable to PHP because multi-threading cannot be used in a web server environment.
    

Python

#!/usr/bin/env python
# Copyright 2020 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.
"""Shows how to download in parallel a set of reports from a list of accounts.

If you need to obtain a list of accounts, please see the
account_management/get_account_hierarchy.py or
account_management/list_accessible_customers.py examples.
"""

import argparse
from itertools import product
import logging
import multiprocessing
import sys
import time
from typing import Any, Dict, Iterable, List, Tuple

from google.ads.googleads.client import GoogleAdsClient
from google.ads.googleads.errors import GoogleAdsException
from google.ads.googleads.v24.errors.types import (
    ErrorLocation,
    GoogleAdsError,
)
from google.ads.googleads.v24.services.services.google_ads_service import (
    GoogleAdsServiceClient,
)
from google.ads.googleads.v24.services.types import (
    GoogleAdsRow,
    SearchGoogleAdsStreamResponse,
)

logger = logging.getLogger("google.ads.googleads.client")
logger.addHandler(logging.StreamHandler(sys.stdout))


# Maximum number of processes to spawn.
MAX_PROCESSES: int = multiprocessing.cpu_count()
# Timeout between retries in seconds.
BACKOFF_FACTOR: int = 5
# Maximum number of retries for errors.
MAX_RETRIES: int = 5


def main(client: GoogleAdsClient, customer_ids: List[str]) -> None:
    """The main method that creates all necessary entities for the example.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_ids: an array of client customer IDs.
    """

    # Define the GAQL query strings to run for each customer ID.
    campaign_query: str = """
        SELECT campaign.id, metrics.impressions, metrics.clicks
        FROM campaign
        WHERE segments.date DURING LAST_30_DAYS"""
    ad_group_query: str = """
        SELECT campaign.id, ad_group.id, metrics.impressions, metrics.clicks
        FROM ad_group
        WHERE segments.date DURING LAST_30_DAYS"""

    inputs: Iterable[Tuple[GoogleAdsClient, str, str]] = generate_inputs(
        client, customer_ids, [campaign_query, ad_group_query]
    )
    with multiprocessing.Pool(MAX_PROCESSES) as pool:
        # Call issue_search_request on each input, parallelizing the work
        # across processes in the pool.
        results: List[Tuple[bool, Dict[str, Any]]] = pool.starmap(
            issue_search_request, inputs
        )

        # Partition our results into successful and failed results.
        successes: List[Dict[str, Any]] = []
        failures: List[Dict[str, Any]] = []
        res: Tuple[bool, Dict[str, Any]]
        for res in results:
            if res[0]:
                successes.append(res[1])
            else:
                failures.append(res[1])

        # Output results.
        print(
            f"Total successful results: {len(successes)}\n"
            f"Total failed results: {len(failures)}\n"
        )

        print("Successes:") if len(successes) else None
        success: Dict[str, Any]
        for success in successes:
            # success["results"] represents an array of result strings for one
            # customer ID / query combination.
            result_str: str = "\n".join(success["results"])
            print(result_str)

        print("Failures:") if len(failures) else None
        failure: Dict[str, Any]
        for failure in failures:
            ex: GoogleAdsException = failure["exception"]
            print(
                f'Request with ID "{ex.request_id}" failed with status '
                f'"{ex.error.code().name}" for customer_id '
                f'{failure["customer_id"]} and query "{failure["query"]}" and '
                "includes the following errors:"
            )
            error: GoogleAdsError
            for error in ex.failure.errors:
                print(f'\tError with message "{error.message}".')
                if error.location:
                    field_path_element: ErrorLocation.FieldPathElement
                    for (
                        field_path_element
                    ) in error.location.field_path_elements:
                        print(f"\t\tOn field: {field_path_element.field_name}")


def issue_search_request(
    client: GoogleAdsClient, customer_id: str, query: str
) -> Tuple[bool, Dict[str, Any]]:
    """Issues a search request using streaming.

    Retries if a GoogleAdsException is caught, until MAX_RETRIES is reached.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID str.
        query: a GAQL query str.
    """
    ga_service: GoogleAdsServiceClient = client.get_service("GoogleAdsService")
    retry_count: int = 0
    # Retry until we've reached MAX_RETRIES or have successfully received a
    # response.
    while True:
        try:
            stream: Iterable[SearchGoogleAdsStreamResponse] = (
                ga_service.search_stream(customer_id=customer_id, query=query)
            )
            # Returning a list of GoogleAdsRows will result in a
            # PicklingError, so instead we put the GoogleAdsRow data
            # into a list of str results and return that.
            result_strings: List[str] = []
            batch: SearchGoogleAdsStreamResponse
            for batch in stream:
                row: GoogleAdsRow
                for row in batch.results:
                    ad_group_id: str = (
                        f"Ad Group ID {row.ad_group.id} in "
                        if "ad_group.id" in query
                        else ""
                    )
                    result_string: str = (
                        f"{ad_group_id}"
                        f"Campaign ID {row.campaign.id} "
                        f"had {row.metrics.impressions} impressions "
                        f"and {row.metrics.clicks} clicks."
                    )
                    result_strings.append(result_string)
            return (True, {"results": result_strings})
        except GoogleAdsException as ex:
            # This example retries on all GoogleAdsExceptions. In practice,
            # developers might want to limit retries to only those error codes
            # they deem retriable.
            if retry_count < MAX_RETRIES:
                retry_count += 1
                time.sleep(retry_count * BACKOFF_FACTOR)
            else:
                return (
                    False,
                    {
                        "exception": ex,
                        "customer_id": customer_id,
                        "query": query,
                    },
                )


def generate_inputs(
    client: GoogleAdsClient,
    customer_ids: List[str],
    queries: List[str],
) -> Iterable[Tuple[GoogleAdsClient, str, str]]:
    """Generates all inputs to feed into search requests.

    A GoogleAdsService instance cannot be serialized with pickle for parallel
    processing, but a GoogleAdsClient can be, so we pass the client to the
    pool task which will then get the GoogleAdsService instance.

    Args:
        client: An initialized GoogleAdsClient instance.
        customer_ids: A list of str client customer IDs.
        queries: A list of str GAQL queries.
    """
    return product([client], customer_ids, queries)


if __name__ == "__main__":
    parser: argparse.ArgumentParser = argparse.ArgumentParser(
        description="Download a set of reports in parallel from a list of "
        "accounts."
    )
    # The following argument(s) should be provided to run the example.
    parser.add_argument(
        "-c",
        "--customer_ids",
        nargs="+",
        type=str,
        required=True,
        help="The Google Ads customer IDs.",
    )
    parser.add_argument(
        "-l",
        "--login_customer_id",
        type=str,
        help="The login customer ID (optional).",
    )
    args: argparse.Namespace = parser.parse_args()

    # GoogleAdsClient will read the google-ads.yaml configuration file in the
    # home directory if none is specified.
    googleads_client: GoogleAdsClient = GoogleAdsClient.load_from_storage(
        version="v24"
    )
    # Override the login_customer_id on the GoogleAdsClient, if specified.
    if args.login_customer_id is not None:
        googleads_client.login_customer_id = args.login_customer_id

    main(googleads_client, args.customer_ids)

      

Ruby

#!/usr/bin/ruby
# Encoding: utf-8
#
# Copyright:: Copyright 2020 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.
#
# Shows how to download a set of reports from a list of accounts in parallel.
# If you need to obtain a list of accounts, please see get_account_hierarchy.rb
# or list_accessible_customers.rb examples.

require 'optparse'
require 'google/ads/google_ads'
require 'thread'

def parallel_report_download(customer_ids, login_customer_id)
  # GoogleAdsClient will read a config file from
  # ENV['HOME']/google_ads_config.rb when called without parameters
  client = Google::Ads::GoogleAds::GoogleAdsClient.new

  # Optional login customer ID if your access to the CIDs is
  # via a manager account.
  client.configure do |config|
    if login_customer_id
      config.login_customer_id = login_customer_id.tr("-", "").to_i
    end
  end

  ga_service = client.service.google_ads

  query_list = [
    [
      "Campaign Query",
      <<~QUERY
        SELECT campaign.id, metrics.impressions, metrics.clicks
        FROM campaign
        WHERE segments.date DURING LAST_30_DAYS
      QUERY
    ],
    [
      "Ad Group Query",
      <<~QUERY
        SELECT campaign.id, ad_group.id, metrics.impressions, metrics.clicks
        FROM ad_group
        WHERE segments.date DURING LAST_30_DAYS
      QUERY
    ]
  ]

  # Use Queue instead of array, to ensure thread safety.
  # (Array in Ruby is not thread safe.)
  reports_succeeded = Queue.new()
  reports_failed = Queue.new()

  # Start all the threads.
  # This is a naive implementation for illustrative purposes. It is possible to
  # optimize the utilization of each customer ID by providing a queue of work
  # (or similar). However, this would complicate the example code and so is
  # omitted here.
  threads = []
  query_list.each do |query_key, query|
    customer_ids.each do |cid|
      cid = cid.tr("-", "")
      # Starts the report download in a background thread.
      threads << Thread.new do
        begin
          puts "Requesting #{query_key} for CID #{cid}"
          responses = ga_service.search_stream(
            customer_id: cid.tr("-", ""),
            query: query,
          )
          # Stores the number of rows for each report for illustrative purposes.
          # Users of this code example can implement other logic here such as
          # storing response to a database/file, pass the response on to
          # another method for further processing, etc.
          num_rows = 0
          responses.each do |response|
            response.results.each do |row|
              num_rows += 1
            end
          end
          reports_succeeded << {
            :cid => cid,
            :query_key => query_key,
            :num_rows => num_rows,
          }
        rescue Google::Ads::GoogleAds::Errors::GoogleAdsError => e
          error_messages = ""
          e.failure.errors.each do |error|
            error_messages += error.message
          end
          reports_failed << {
            :cid => cid,
            :query_key => query_key,
            :error_messages => error_messages,
          }
        end
      end
    end
  end

  puts "Awaiting results from #{threads.size} report download requests..."

  # Waits for all pending requests to the current set of customer IDs
  # to complete.
  threads.each { |thread|  thread.join }

  puts 'Download completed, results:'
  puts 'Successful reports:'
  while !reports_succeeded.empty? do
    result = reports_succeeded.pop()
    puts "Customer ID: #{result[:cid]}, Query Key: #{result[:query_key]}, " \
      "Total rows retrieved: #{result[:num_rows]}"
  end
  puts 'Failed reports:'
  while !reports_failed.empty? do
    result = reports_failed.pop()
    puts "Customer ID: #{result[:cid]}, Query Key: #{result[:query_key]}, " \
      "Error Messages: #{result[:error_messages]}"
  end
  puts 'End of results.'
end

if __FILE__ == $PROGRAM_NAME
  options = {}

  # The following parameter(s) should be provided to run the example. You can
  # either specify these by changing the INSERT_XXX_ID_HERE values below, or on
  # the command line.
  #
  # Parameters passed on the command line will override any parameters set in
  # code.
  #
  # Running the example with -h will print the command line usage.
  options[:customer_ids] = [
    'INSERT_CUSTOMER_ID_1_HERE',
    'INSERT_CUSTOMER_ID_2_HERE',
  ]

  OptionParser.new do |opts|
    opts.banner = sprintf('Usage: ruby %s [options]', File.basename(__FILE__))

    opts.separator ''
    opts.separator 'Options:'

    opts.on('-C', '--customer-ids CUSTOMER-IDS', String,
      'A comma-separated list of Customer IDs to downloads reports in parallel.') do |v|
      options[:customer_ids] = v.split(',')
    end

    opts.on('-L', '--login-customer-id LOGIN-CUSTOMER-ID', String,
      'Optionally specify the manager account ID which provides access to the Customer IDs.') do |v|
      options[:login_customer_id] = v
    end

    opts.separator ''
    opts.separator 'Help:'

    opts.on_tail('-h', '--help', 'Show this message') do
      puts opts
      exit
    end
  end.parse!

  begin
    parallel_report_download(
      options.fetch(:customer_ids),
      options[:login_customer_id],
    )
  rescue Google::Ads::GoogleAds::Errors::GoogleAdsError => e
    e.failure.errors.each do |error|
      STDERR.printf("Error with message: %s\n", error.message)
      if error.location
        error.location.field_path_elements.each do |field_path_element|
          STDERR.printf("\tOn field: %s\n", field_path_element.field_name)
        end
      end
      error.error_code.to_h.each do |k, v|
        next if v == :UNSPECIFIED
        STDERR.printf("\tType: %s\n\tCode: %s\n", k, v)
      end
    end
    raise
  end
end

      

Perl

#!/usr/bin/perl -w
#
# Copyright 2020, 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.
#
# Shows how to download a set of reports from a list of accounts in parallel.
#
# If you need to obtain a list of accounts, please see the get_account_hierarchy.pl
# or list_accessible_customers.pl examples.

use strict;
use warnings;
use utf8;

use FindBin qw($Bin);
use lib "$Bin/../../lib";
use Google::Ads::GoogleAds::Client;
use Google::Ads::GoogleAds::Utils::GoogleAdsHelper;
use Google::Ads::GoogleAds::Utils::SearchGoogleAdsIterator;
use
  Google::Ads::GoogleAds::V25::Services::GoogleAdsService::SearchGoogleAdsRequest;

use Getopt::Long qw(:config auto_help);
use Pod::Usage;
use Cwd qw(abs_path);
use threads;

# Defines the Google Ads Query Language (GAQL) query strings to run for each
# customer ID.
use constant GAQL_QUERY_STRINGS => [
  "SELECT campaign.id, metrics.impressions, metrics.clicks " .
    "FROM campaign WHERE segments.date DURING LAST_30_DAYS",
  "SELECT campaign.id, ad_group.id, metrics.impressions, metrics.clicks" .
    " FROM ad_group WHERE segments.date DURING LAST_30_DAYS"
];
# The following parameter(s) should be provided to run the example. You can
# either specify these by changing the INSERT_XXX_ID_HERE values below, or on
# the command line.
#
# Parameters passed on the command line will override any parameters set in
# code.
#
# Running the example with -h will print the command line usage.
my $customer_id_1     = "INSERT_CUSTOMER_ID_1_HERE";
my $customer_id_2     = "INSERT_CUSTOMER_ID_2_HERE";
my $customer_ids      = [];
my $login_customer_id = undef;

sub parallel_report_download {
  my ($api_client, $customer_ids) = @_;

  # Create a single google ads service which can be shared by all threads.
  my $google_ads_service = $api_client->GoogleAdsService();

  # IMPORTANT: You should avoid hitting the same customer ID in parallel. There
  # are rate limits at the customer ID level which are much stricter than limits
  # at the developer token level.
  foreach my $search_query (@{+GAQL_QUERY_STRINGS}) {
    # Use a list of threads to make sure that we wait for this report to complete
    # on all customer IDs before proceeding.
    my $threads = [];

    # Use the API to retrieve the report for each customer ID.
    foreach my $customer_id (@$customer_ids) {
      # Start the report download in a background thread.
      my $thread =
        threads->create(\&download_report, $google_ads_service, $customer_id,
        $search_query);

      # Store a thread to retrieve the results.
      push @$threads, $thread;
    }

    # Wait for all pending requests to the current set of customer IDs to complete.
    my $results = [map { $_->join() } @$threads];

    print "Report results for query: $search_query\n";
    foreach my $result (@$results) {
      printf "Customer ID '%d' Number of results: %d IsSuccess? %s\n",
        $result->{customerId}, $result->{numResults},
        defined $result->{errorMessage}
        ? "No :-( Why? " . $result->{errorMessage}
        : "Yes!";
    }
  }

  return 1;
}

# Downloads the report from the specified customer ID.
sub download_report {
  my ($google_ads_service, $customer_id, $search_query) = @_;

  my $numResults   = 0;
  my $errorMessage = undef;

  # Ideally we should use the search stream request here. But there's a tricky
  # issue in the JSON::SL module which is a dependency of SearchStreamHandler:
  #
  # This will most likely not work with threads, although one would wonder why
  # you would want to use this module across threads.

  # Create a search Google Ads request that will retrieve the results using pages
  # of the specified page size.
  my $search_request =
    Google::Ads::GoogleAds::V25::Services::GoogleAdsService::SearchGoogleAdsRequest
    ->new({
      customerId => $customer_id,
      query      => $search_query
    });

  eval {
    my $iterator = Google::Ads::GoogleAds::Utils::SearchGoogleAdsIterator->new({
      service => $google_ads_service,
      request => $search_request
    });

    # Iterate over all rows in all pages to count the number or results.
    while ($iterator->has_next) {
      my $google_ads_row = $iterator->next;
      $numResults++;
    }
  };
  if ($@) {
    $errorMessage = $@ =~ /"message": "([^"]+)"/ ? $1 : "";
  }

  return {
    customerId   => $customer_id,
    numResults   => $numResults,
    errorMessage => $errorMessage
  };
}

# Don't run the example if the file is being included.
if (abs_path($0) ne abs_path(__FILE__)) {
  return 1;
}

# Get Google Ads Client, credentials will be read from ~/googleads.properties.
my $api_client = Google::Ads::GoogleAds::Client->new();

# By default examples are set to die on any server returned fault.
$api_client->set_die_on_faults(1);

# Parameters passed on the command line will override any parameters set in code.
GetOptions(
  "customer_ids=s"      => \@$customer_ids,
  "login_customer_id=s" => \$login_customer_id
);
$customer_ids = [$customer_id_1, $customer_id_2] unless @$customer_ids;

# Print the help message if the parameters are not initialized in the code nor
# in the command line.
pod2usage(2) if not check_params($customer_ids);

$api_client->set_login_customer_id($login_customer_id =~ s/-//gr)
  if $login_customer_id;

# Call the example.
parallel_report_download($api_client, [map { $_ =~ s/-//gr } @$customer_ids]);

=pod

=head1 NAME

parallel_report_download

=head1 DESCRIPTION

Shows how to download a set of reports from a list of accounts in parallel.

If you need to obtain a list of accounts, please see the get_account_hierarchy.pl
or list_accessible_customers.pl examples.

=head1 SYNOPSIS

parallel_report_download.pl [options]

    -help                       Show the help message.
    -customer_ids               The Google Ads customer IDs.
    -login_customer_id          [optional] The login customer ID.

=cut

      

curl