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Cloud Functions is a serverless execution environment for building and connecting cloud services. With Cloud Functions you write simple, single-purpose functions that are attached to events emitted from your cloud infrastructure and services. Your Cloud Function is triggered when an event being watched is fired. Your code executes in a fully managed environment. There is no need to provision any infrastructure or worry about managing any servers.
Cloud Functions are written in Javascript and execute in a Node.js environment on Google Cloud. You can take your Cloud Function and run it in any standard Node.js runtime which makes both portability and local testing a breeze.
- Cloud Functions is a serverless execution environment for building and connecting cloud services.
- The code executes in a fully managed environment and it's no need to provision any infrastructure.
- Cloud Functions triggered by the Cloud Events (things that happen in the cloud environment).
- e.g. changes to data in a database
- e.g. files added to a storage system
- e.g. a new virtual machine instance being created
- Use Cases
- e.g. Data Processing / ETL
- e.g. Webhooks
- e.g. Lightweight APIs
- e.g. Mobile Backend
- e.g. IoT
- In the console, click the Navigation Menu > Cloud Functions.
- Click CREATE FUNCTION.
- In the Create Function dialog, fill up the fields.
- Click DEPLOY.
After you click DEPLOY, the console redirects to the Cloud Functions Overview page. While the function is being deployed, the icon next to it is a small spinner. When it's deployed, the spinner is a green check mark.
- [Test Functions] In the Cloud Functions Overview page, display the menu for your function, and click Test function.
- [View Logs] In the Cloud Functions Overview page, display the menu for your function, and click View logs.