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Showing content from https://cloud.google.com/cpp/docs/reference/datastream/2.12.0/datastream-override-retry below:

C++ Client Libraries | Google Cloud

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An idiomatic C++ client library for the Datastream API, a serverless and easy-to-use change data capture (CDC) and replication service. It allows you to synchronize data across heterogeneous databases and applications reliably, and with minimal latency and downtime.

While this library is GA, please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.

The following shows the code that you'll run in the google/cloud/datastream/quickstart/ directory, which should give you a taste of the Datastream API C++ client library API.

#include "google/cloud/datastream/v1/datastream_client.h"
#include "google/cloud/project.h"
#include <iostream>

int main(int argc, char* argv[]) try {
  if (argc != 3) {
    std::cerr << "Usage: " << argv[0] << " project-id location-id\n";
    return 1;
  }

  namespace datastream = ::google::cloud::datastream_v1;
  auto client =
      datastream::DatastreamClient(datastream::MakeDatastreamConnection());

  auto const parent =
      std::string{"projects/"} + argv[1] + "/locations/" + argv[2];
  for (auto r : client.ListStreams(parent)) {
    if (!r) throw std::move(r).status();
    std::cout << r->DebugString() << "\n";
  }

  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

The main class in this library is datastream_v1::DatastreamClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock datastream_v1::DatastreamClient when testing your application.

The library automatically retries requests that fail with transient errors, and uses exponential backoff to backoff between retries. Application developers can override the default policies.

• Error Handling - describes how the library reports errors.
• How to Override the Default Endpoint - describes how to override the default endpoint.
• How to Override the Authentication Credentials - describes how to change the authentication credentials used by the library.
• Environment Variables - describes environment variables that can configure the behavior of the library.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-14 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This webpage provides documentation for the Datastream API C++ Client Library, which facilitates synchronizing data across databases and applications with minimal latency and downtime."],["The latest release candidate is version 2.37.0-rc, with multiple previous versions available, up to 2.11.0."],["The primary class within this library is `datastream_v1::DatastreamClient`, which exposes all RPCs as member functions and is used in the quickstart example provided."],["The library includes automatic retries with exponential backoff for transient errors, and provides several override options for error handling, endpoints, and authentication credentials."],["The google cloud c++ client libraries does not follow semantic versioning."]]],[]]

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