Integrating with Lambda
~8 min read
How API Gateway turns a Lambda function into a real HTTP endpoint.
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Key points
- •Lambda Proxy integration passes the full request as an event and expects a specific {statusCode, headers, body} response shape
- •Returning a plain object instead of this expected shape causes a confusing 500 error
- •Non-proxy integrations allow custom request/response transformation but require much more configuration
- •Proxy integration is the default, recommended choice for the vast majority of Lambda-backed APIs