Common use cases
Serverless application back ends
Trigger your code from Google Cloud services or call it directly from any web, mobile, or backend application. Cloud Functions provides a connective layer of logic that lets you integrate and extend Google Cloud and third-party services, making it possible to rapidly build serverless applications that are highly available, secure, and cost-effective.
Integration with third-party services and APIs
Use Cloud Functions to surface your own microservices via HTTP APIs or integrate with third-party services that offer webhook integrations to quickly extend your application with powerful capabilities such as sending a confirmation email after a successful Stripe payment or responding to Twilio text message events.
Serverless mobile back ends
Use Cloud Functions directly from Firebase to extend your application functionality without spinning up a server. Run your code in response to user actions, analytics, and authentication events to keep your users engaged with event-based notifications and offload CPU- and networking-intensive tasks to Google Cloud.
Serverless IoT back ends
Use Cloud Functions with Cloud IoT Core and other fully managed services to build back ends for Internet of Things (IoT) device telemetry data collection, real-time processing, and analysis. Cloud Functions allows you to apply custom logic to each event as it arrives.
Real-time data processing systems
Execute your code in response to changes in data. Cloud Functions can respond to events from Google Cloud services such as Cloud Storage, Pub/Sub, and Stackdriver Logging, allowing you to power a variety of serverless real-time data processing systems.
Real-time file processing
Use Cloud Functions to respond to events from Cloud Storage or Firebase Storage to process files immediately after upload to generate thumbnails from image uploads, process logs, validate content, transcode videos, validate, aggregate, and filter data in real time.
Real-time stream processing
Use Cloud Functions to respond to events from Pub/Sub to process, transform, and enrich streaming data in transaction processing, click-stream analysis, application activity tracking, IoT device telemetry, social media analysis, and other types of applications.
Easily inject artificial intelligence into your applications.
Virtual assistants and conversational experiences
Use Cloud Functions with Cloud Speech API and Dialogflow to extend your products and services with voice- and text-based natural conversational experiences that help users get things done. Connect with users on Google Assistant, Amazon Alexa, Facebook Messenger, and other popular platforms and devices.
Video and image analysis
Use Cloud Functions with Video Intelligence API and Cloud Vision API to retrieve relevant information from videos and images, enabling you to search, discover, and derive insight from your media content.
|Connects and extends services to build complex applications||Cloud Functions lets you treat all Google Cloud, Firebase, Google Assistant, and third-party cloud services as building blocks, connect and extend them with code, and rapidly move from concept to production. Develop end-to-end solutions and complex workflows using Cloud Functions and other Google Cloud services such as Pub/Sub, Cloud Tasks, Cloud Scheduler, Firestore, Cloud ML, Vision API, and BigQuery. Further, integrate with third-party services that offer webhook integrations to quickly extend your application with powerful capabilities.|
|End-to-end development and diagnosability||Go from code to deploy, with integrated monitoring. Get full observability and diagnosability for your application with Stackdriver. Additionally, get support for local and disconnected development/debugging using open sourced functions framework.|
|Scales automatically||Serve users from zero to planet-scale without even thinking about any infrastructure. Cloud Functions automatically manages and scales underlying infrastructure with the size of workload.|
|No server management||Deploy your code and let Google run and scale it for you. Cloud Functions abstracts away all the underlying infrastructure, so that you can focus on your code and build applications faster than ever before.|
|Runs code in response to events||Cloud Functions allows you to trigger your code from Google Cloud, Firebase, and Google Assistant, or call it directly from any web, mobile, or backend application via HTTP.|
|Pay only for what you use||You are only billed for your function’s execution time, metered to the nearest 100 milliseconds. You pay nothing when your function is idle. Cloud Functions automatically spins up and backs down in response to events.|
|Avoid lock-in with open technology||Use open source FaaS (function as a service) framework to run functions across multiple environments and prevent lock-in. Supported environments include Cloud Functions, local development environment, on-premises, Cloud Run, Cloud Run for Anthos, and other Knative-based serverless environments.|
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