Lambda and serverless development

Follow a first Lambda function through local development, testing, and application integration. The sections separate setup from workflow design and production troubleshooting, so you can go directly to the task you are working on. For questions about the networks or security around these applications, continue to the networking and security topic guides.

Start here: AWS Lambda Getting Started: Deploy Your First Function

Build and test a function

Start with a first function, then choose a SAM guide for your local development task. The unit-testing articles focus on application behavior; the pipeline guide covers the publishing workflow rather than local invocation.

Connect services and manage state

Use the comparison and pattern guides when your problem involves routing events, coordinating steps, or maintaining application state. The BFF guide addresses an application interface, while the saga and integration articles cover workflows spanning multiple operations.

Observe performance and control cost

Move from metric definitions to a focused troubleshooting or alerting task. Cold starts, error monitoring, and cost allocation are separate concerns; choose the guide that matches the symptom or operational decision you need to investigate.

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