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Response Headers

Learn to handle HTTP response headers in AWS API Gateway, including built-in and custom headers. Understand how to map data like client IP addresses into headers to improve traceability and debugging in serverless API applications, using practical examples and mock integrations.

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HTTP Response headers

An API response can have custom headers containing information useful for processing the response. To get a feel, invoke any API from Postman, and then look at the headers in the response section. It looks like this:

Response headers
Response headers

Each value contains information that can provide vital insights into API processing. We might not directly use each field in ...