The Google Cloud Client Library for Node.js is the idiomatic way for Node.js developers to integrate apps with other GCP services.
For a complete list of all of the Node.js libraries for the supported GCP services, see that Node.js APIs & Libraries reference.
Assume that you want to use Cloud Storage.
To install the Node.js client library for Cloud Storage:
Install the client library locally by using a package manager:
npm install --save @google-cloud/storage
yarn add @google-cloud/storage
Use the Node.js client library for Cloud Storage reference to implement support for the Cloud Storage service in your app.