Individual skill
aws-lambda-web-functions
Creates and deploys Node.js HTTP web applications on AWS Lambda Web Functions. Guides users through building web apps and APIs with Express, Fastify, or Hono, packaging, deploying via the aws lambda-web CLI, and iterating. Triggers when user wants to deploy a website or web app to AWS as serverless, deploy a Node.js HTTP server to AWS, build a serverless website or API with Node.js, deploy Express/Hono/Fastify apps, set up multi-region HTTP endpoints, connect a Node.js web app to private VPC resources, or explicitly mentions Lambda Web Functions. Does NOT trigger for non-Node.js runtimes or frameworks such as Flask or Django, event-driven patterns (SQS, Kinesis, S3 events), or container deployments.
skills/specialized-skills/serverless-skills/aws-lambda-web-functions/SKILL.md
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- Last checked
- Nov 3, 2026
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- Repository last updated
- Nov 7, 2026
- License
- Apache-2.0
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- engineering Derived category
- devops Derived category
- devops-containers Derived category
- engineering-web Derived category
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SKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesSKILL.mdcore · 31,322 bytesreferences/architecture-patterns.mddoc · 7,034 bytesreferences/deployment.mddoc · 17,193 bytesreferences/domains-and-routing.mddoc · 10,029 bytesreferences/frameworks.mddoc · 3,951 bytesreferences/getting-started.mddoc · 6,612 bytesreferences/iam-and-security.mddoc · 5,099 bytesreferences/infrastructure-as-code.mddoc · 12,690 bytesreferences/migration.mddoc · 13,933 bytesreferences/networking.mddoc · 13,753 bytesreferences/observability.mddoc · 7,560 bytesreferences/scaling-and-concurrency.mddoc · 4,902 bytesreferences/static-assets.mddoc · 1,758 bytesreferences/troubleshooting.mddoc · 9,856 bytes
Read excerpt
# AWS Lambda Web Functions
> The AWS MCP server is recommended for sandboxed execution and audit logging.
>
> **If `aws lambda-web` is not recognized, update the AWS CLI (see [references/deployment.md](references/deployment.md)).** A missing command means an outdated CLI, not an unavailable feature.
Help users build and deploy Node.js HTTP applications on AWS Lambda Web Functions. Your app listens on a port, handles HTTP natively, and gets a global HTTPS URL. Develop locally with `node index.js`, deploy the same code to AWS.
## When to Use Web Functions
- Interactive HTTP traffic someone is waiting on: web app, HTTP API, or SSR site.
- The app is already a port-listening HTTP server (Express, Fastify, Hono) and should stay one — no handler rewrite, no adapter library.
- Handlers are I/O-bound (database, cache, another API, a model endpoint), so many requests share one execution environment and time spent waiting on I/O is not billed as CPU.
- Response streaming matters: SSE, chunked transfer, or proxying LLM tokens as they are produced.