README.md

Google Cloud Common Promisify: Node.js Client

A simple utility for promisifying functions and classes.

• Google Cloud Common Promisify Node.js Client API Reference

• github.com/googleapis/nodejs-promisify

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:

• Quickstart

  • Installing the client library
  • Using the client library

• Samples

• Versioning

• Contributing

• License

Quickstart

Installing the client library

npm install @google-cloud/promisify

Using the client library

const {promisify} = require('@google-cloud/promisify');

/**
 * This is a very basic example function that accepts a callback.
 */
function someCallbackFunction(name, callback) {
  if (!name) {
    callback(new Error('Name is required!'));
  } else {
    callback(null, `Well hello there, ${name}!`);
  }
}

// let's promisify it!
const somePromiseFunction = promisify(someCallbackFunction);

async function quickstart() {
  // now we can just `await` the function to use it like a promisified method
  const [result] = await somePromiseFunction('nodestronaut');
  console.log(result);
}
quickstart();

It's unlikely you will need to install this package directly, as it will be installed as a dependency when you install other @google-cloud packages.

Samples

Samples are in the samples/ directory. The samples' README.md has instructions for running the samples.

Sample	Source Code	Try it
Quickstart	source code

The Google Cloud Common Promisify Node.js Client API Reference documentation also contains samples.

Versioning

This library follows Semantic Versioning.

This library is considered to be General Availability (GA). This means it is stable; the code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against GA libraries are addressed with the highest priority.

More Information: Google Cloud Platform Launch Stages

Contributing

Contributions welcome! See the Contributing Guide.

License

Apache Version 2.0

See LICENSE