aws/aws-lambda-web-adapter resource

Health v2 · maintenance only

Adoption not part of the score

2741 stars · 159 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

AWS Lambda Web Adapter is a Rust-based Lambda extension that lets any web application speaking HTTP 1.1/1.0 run on AWS Lambda without code changes. It translates Lambda events (API Gateway, Function URLs, ALB) into HTTP requests forwarded to the app's local web server.

Use cases

• run an express.js app on aws lambda
• deploy flask app to lambda without rewriting
• serve spring boot on lambda function urls
• use the same docker image on lambda and fargate
• stream responses from a web app through lambda
• migrate a monolith web api to serverless

When to choose

• you want to run an existing HTTP web app on Lambda with zero code changes
• you need portability of one container image across Lambda, Fargate, and EC2
• you use a framework or language without a native Lambda runtime handler

When to avoid

• you need fine-grained control over Lambda handlers and cold starts better served by native runtimes
• your workload is not HTTP/event-driven
• you want to avoid the extra latency of a local HTTP hop inside the sandbox

Facets

infra-config · maturity active

http-server middleware deployment serverless cloud-computing backend web-development apis serverless cloud rust aws-lambda lambda-extension web-adapter api-gateway fargate http-proxy serverless-deployment devops docker linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="aws/aws-lambda-web-adapter")