This repository has been archived and is no longer maintained.

We recommend you use:

• Google Cloud Functions: The functions framework which is the same library that powers functions for Node 10+.
• Google Cloud Functions for Firebase: The local emulator with firebase-tools.

Please see Issue #327 for more details.

Disclaimer: This is not an official Google product.

Table of Contents

• What is the Google Cloud Functions Emulator?
• How do I get started?
• Where is the documentation?
  • CLI Docs: functions --help
  • How-To Guides
• Contributing
• License

The Google Cloud Functions Emulator is a Node.js application that implements the Google Cloud Functions API, and includes a CLI with which you can manage the application.

The Emulator allows you to deploy, run, and debug your Cloud Functions on your local machine before deploying them to the production Google Cloud Functions service.

The Emulator only supports Node v6.x.x. It does not support Node v8.x.x or Python.

1. Write a function:

    mkdir helloWorld
    cd helloWorld
    touch index.js
    echo 'exports.helloWorld = (req, res) => res.send("Hello, World!");' > index.js
   

2. Install the Emulator:

   NPM:

    npm install -g @google-cloud/functions-emulator
   

   Yarn:

    yarn global add @google-cloud/functions-emulator
   

   Or read more in the detailed installation instructions.

3. Start the Emulator:

    functions start
   

4. Deploy your function:

    functions deploy helloWorld --trigger-http
   

   Get help deploying a function with functions deploy --help.

5. Call your function:

    functions call helloWorld
   

6. View the logs:

    functions logs read
   

For a quick reference, the Emulator CLI is self-documenting. Run the following to get help with the CLI:

functions --help

For everything else see the How-To Guides.

To give feedback, report a bug, or request a feature, please open an issue.

To contribute a change, check out the contributing guide.

Copyright 2017, Google, Inc.

Licensed under the Apache License, Version 2.0

See the full license.