Eventarc client libraries

This page shows how to get started with the Cloud Client Libraries for the Eventarc API. Client libraries make it easier to access Google Cloud APIs from a supported language. Although you can use Google Cloud APIs directly by making raw requests to the server, client libraries provide simplifications that significantly reduce the amount of code you need to write.

Read more about the Cloud Client Libraries and the older Google API Client Libraries in Client libraries explained.

Install the client library

Install-Package Google.Cloud.Eventarc.V1

go get cloud.google.com/go/eventarc

<dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-eventarc</artifactId>
    <version>1.46.0</version>
</dependency>

compile group: 'com.google.cloud', name: 'google-cloud-eventarc', version: '1.46.0'

npm install @google-cloud/eventarc

composer require google/cloud

pip install --upgrade google-cloud-eventarc

gem install google-cloud-eventarc

Set up authentication

For production environments, the way you set up ADC depends on the service and context. For more information, see Set up Application Default Credentials.

For a local development environment, you can set up ADC with the credentials that are associated with your Google Account:

1. Install the Google Cloud CLI. After installation, initialize the Google Cloud CLI by running the following command:

   gcloud init

   If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

2. If you're using a local shell, then create local authentication credentials for your user account:

   gcloud auth application-default login

   You don't need to do this if you're using Cloud Shell.

   If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

   A sign-in screen appears. After you sign in, your credentials are stored in the local credential file used by ADC.

Use the client library

The following example shows how to use the client library.

#include "google/cloud/eventarc/v1/eventarc_client.h"
#include "google/cloud/location.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;
  }

  auto const location = google::cloud::Location(argv[1], argv[2]);

  namespace eventarc = ::google::cloud::eventarc_v1;
  auto client = eventarc::EventarcClient(eventarc::MakeEventarcConnection());

  for (auto t : client.ListTriggers(location.FullName())) {
    if (!t) throw std::move(t).status();
    std::cout << t->DebugString() << "\n";
  }

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

// Imports the Google Cloud client library

// remove this line after package is released
const {EventarcClient} = require('@google-cloud/eventarc');

// TODO: replace with your prefered project ID.
// const projectId = 'my-project'

// Creates a client
const client = new EventarcClient();

async function doSomething() {
  for await (const trigger of await client.listTriggersAsync({
    parent: client.locationPath(projectId, 'us-central1'),
  })) {
    console.info(trigger.name);
  }
}
doSomething();

Additional resources