Dialogflow CX API C++ Client Library

Table of Contents

• Quickstart
• Main classes
• More Information

An idiomatic C++ client library for the Dialogflow CX API, a service to build conversational interfaces (for example, chatbots, and voice-powered apps and devices). There are two editions of Dialogflow, this library supports the CX edition.

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

Quickstart

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

#include "google/cloud/dialogflow_cx/agents_client.h"
#include <iostream>
 
int main(int argc, char* argv[]) try {
  if (argc != 3) {
    std::cerr << "Usage: " << argv[0] << " project-id region-id\n";
    return 1;
  }
  auto const project = std::string{argv[1]};
  auto const region = std::string{argv[2]};
 
  namespace dialogflow_cx = ::google::cloud::dialogflow_cx;
  auto client =
      dialogflow_cx::AgentsClient(dialogflow_cx::MakeAgentsConnection(region));
 
  auto const location = "projects/" + project + "/locations/" + region;
  for (auto a : client.ListAgents(location)) {
    if (!a) throw std::move(a).status();
    std::cout << a->DebugString() << "\n";
  }
 
  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

Main classes

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.

• dialogflow_cx::AgentsClient
• dialogflow_cx::ChangelogsClient
• dialogflow_cx::DeploymentsClient
• dialogflow_cx::EntityTypesClient
• dialogflow_cx::EnvironmentsClient
• dialogflow_cx::ExperimentsClient
• dialogflow_cx::FlowsClient
• dialogflow_cx::IntentsClient
• dialogflow_cx::PagesClient
• dialogflow_cx::SecuritySettingsServiceClient
• dialogflow_cx::SessionEntityTypesClient
• dialogflow_cx::SessionsClient
• dialogflow_cx::TestCasesClient
• dialogflow_cx::TransitionRouteGroupsClient
• dialogflow_cx::VersionsClient
• dialogflow_cx::WebhooksClient

More Information

• 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.
• Override Retry, Backoff, and Idempotency Policies - describes how to change the default retry policies.
• Environment Variables - describes environment variables that can configure the behavior of the library.