What is AWS Lambda?
AWS Lambda is a serverless compute service that runs code in response to events. No servers to manage, automatic scaling, and you pay only for compute time used (down to the millisecond).
AWS Lambda Video
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How AWS Lambda Works
- Upload code: Deploy your code as a Lambda function
- Set triggers: Configure events to trigger your code (AWS services, HTTP requests, schedules)
- Code runs when triggered: Lambda executes and scales automatically when triggered
- Pay only for compute time: Charged based on execution time and memory used
Analogy: Like a car, you only use fuel when driving. Lambda only runs (and charges) when your code executes.
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Lambda Features
Use Cases
- Image processing: Resize images when uploaded
- Real-time processing: Handle streaming data or in-game events
- API backends: Run backend code for web and mobile apps
Supported Languages
Python, Node.js, Java, C#, Go, Ruby, plus custom runtimes for other languages.
Learn more: AWS Lambda
