AWS Lambda Function URLs: API Gateway Alternative

Lambda Function URLs provide a built-in HTTPS endpoint without API Gateway. This simplifies architectures and reduces cost for simple use cases.

aws lambda create-function-url-config \
  --function-name my-function \
  --auth-type AWS_IAM

When to Use

• Use Function URLs: Webhooks, internal services, simple APIs.
• Use API Gateway: Rate limiting, API keys, request validation, caching.