[core] Implement Lambda streaming with custom HTTP headers #521
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Pull Request Overview
This PR implements Lambda streaming functionality with custom HTTP headers, allowing developers to set HTTP status codes and headers before streaming response bodies. This addresses the need for more control over HTTP response metadata in streaming Lambda functions.
- Adds
StreamingLambdaStatusAndHeadersResponsestruct for configuring HTTP status and headers - Implements
writeStatusAndHeadersextension method onLambdaResponseStreamWriter - Updates documentation and examples to demonstrate the new streaming capabilities
Reviewed Changes
Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| readme.md | Adds documentation and examples for streaming with HTTP headers |
| Sources/AWSLambdaRuntime/LambdaResponseStreamWriter+Headers.swift | Core implementation of headers functionality with response struct and extension methods |
| Tests/AWSLambdaRuntimeTests/LambdaResponseStreamWriter+HeadersTests.swift | Comprehensive test suite covering functionality, error handling, and integration scenarios |
| Examples/Streaming/Sources/main.swift | Updated streaming examples demonstrating headers usage and conditional responses |
| Examples/Streaming/README.md | Enhanced documentation explaining header usage and streaming patterns |
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Fix #520