Cloud Functions

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.

Connect and extend Cloud Services

Cloud Functions provides a connective layer of logic that lets you write code to connect and extend cloud services. Listen and respond to a file upload to Cloud Storage, a log change, or an incoming message on a Cloud Pub/Sub topic.

Cloud Functions augment existing cloud services and allows you to address an increasing number of use cases with arbitrary programming logic.

Cloud Functions have access to the Google Service Account credential and are thus seamlessly authenticated with the majority of Google Cloud services such as Datastore, Cloud Spanner, Cloud Translation API, Cloud Vision API, as well as many others. In addition, Cloud Functions are supported by numerous Node.js client libraries, which further simplify these integrations.

Events and triggers

Cloud events are things that happen in your cloud environment. These might be things like changes to data in a database, files added to a storage system, or a new…