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An idiomatic C++ client library for the Cloud Translation API, a service to integrate text translation into your website or application.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
QuickstartThe following shows the code that you'll run in the google/cloud/translate/quickstart/
directory, which should give you a taste of the Cloud Translation API C++ client library API.
#include "google/cloud/translate/v3/translation_client.h"
#include "google/cloud/project.h"
#include <iostream>
auto constexpr kText = R"""(
Four score and seven years ago our fathers brought forth on this
continent, a new nation, conceived in Liberty, and dedicated to
the proposition that all men are created equal.)""";
int main(int argc, char* argv[]) try {
if (argc < 2 || argc > 3) {
std::cerr << "Usage: " << argv[0] << " project-id "
<< "[target-language (default: es-419)]\n";
return 1;
}
namespace translate = ::google::cloud::translate_v3;
auto client = translate::TranslationServiceClient(
translate::MakeTranslationServiceConnection());
auto const project = google::cloud::Project(argv[1]);
auto const target = std::string{argc >= 3 ? argv[2] : "es-419"};
auto response =
client.TranslateText(project.FullName(), target, {std::string{kText}});
if (!response) throw std::move(response).status();
for (auto const& translation : response->translations()) {
std::cout << translation.translated_text() << "\n";
}
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
Main classes
The main class in this library is translate_v3::TranslationServiceClient
. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock translate_v3::TranslationServiceClient
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.
More InformationExcept 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 Cloud Translation API C++ Client Library, which allows integration of text translation into websites or applications."],["The latest version available is 2.37.0-rc, with a comprehensive list of past versions including 2.36.0, 2.35.0 and down to 2.11.0 also listed for reference and access."],["The library's primary class is `translate_v3::TranslationServiceClient`, which exposes all Remote Procedure Calls (RPCs) as member functions, and the library automatically handles retries and exponential backoff for requests that encounter transient errors."],["While the library is in GA, it does not adhere to Semantic Versioning, and the documentation provides resources for error handling, overriding endpoints and authentication credentials, and environment variable configuration."]]],[]]
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