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An idiomatic C++ client library for Workflows API, a service to orchestrate and automate Google Cloud and HTTP-based API services with serverless workflows.
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/workflows/quickstart/ directory, which should give you a taste of the Workflow Executions API C++ client library API.
#include "google/cloud/workflows/v1/workflows_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 workflows = ::google::cloud::workflows_v1;
auto client =
workflows::WorkflowsClient(workflows::MakeWorkflowsConnection());
auto const parent =
std::string{"projects/"} + argv[1] + "/locations/" + argv[2];
for (auto w : client.ListWorkflows(parent)) {
if (!w) throw std::move(w).status();
std::cout << w->DebugString() << "\n";
}
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
This library offers multiple *Client classes, which are listed below. Each one of these classes exposes all the RPCs for a gRPC service as member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.
The library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the *Client classes 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 Workflows API C++ Client Library, which is a tool for orchestrating and automating Google Cloud and HTTP-based API services using serverless workflows."],["The library, though generally available (GA), does not adhere to Semantic Versioning, and offers versioned documentation with the latest version being 2.37.0-rc and version 2.11.0 being the version documented on the current page."],["The library includes multiple client classes, such as `ExecutionsClient` and `WorkflowsClient`, that expose RPCs for gRPC services and facilitate administrative and data plane operations."],["The library automatically handles transient errors with request retries and exponential backoff, with the ability for developers to customize these default policies."],["The Workflows C++ Client Library provides resources for error handling, endpoint customization, authentication credential override, and environment variable configuration, allowing for a high level of control and customization."]]],[]]
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