feat: use reasoning field in StreamingChunk for Bedrock#2901
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julian-risch merged 1 commit intodeepset-ai:mainfrom Mar 7, 2026
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Populate StreamingChunk.reasoning with ReasoningContent instead of storing reasoning content deltas in meta["reasoning_contents"]. Update _process_reasoning_contents to read from chunk.reasoning.extra instead of chunk.meta.
julian-risch
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Mar 7, 2026
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julian-risch
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Looks good to me! Thank you for your contribution @Br1an67 . I am sorry that it took a bit longer than usual to review your pull request.
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Related Issues
reasoningfield inStreamingChunkhaystack#10480Proposed Changes:
Populate
StreamingChunk.reasoningwithReasoningContentinstead of storing reasoning content deltas inmeta["reasoning_contents"]. This aligns the Bedrock integration with the standardStreamingChunk.reasoningfield, consistent with other integrations (Ollama in #2850, Google GenAI in #2900).Changes:
_process_streaming_event(): CreateReasoningContentwith reasoning text and Bedrock-specific block data inextra, pass viareasoningkwarg instead ofmeta["reasoning_contents"]_process_reasoning_contents(): Read fromchunk.reasoning.extra["reasoning_contents"]instead ofchunk.meta["reasoning_contents"]How did you test it?
test_process_streaming_response_one_tool_call_with_thinkingverifying streaming chunks carry reasoning inchunk.reasoningand not inchunk.metaNotes for the reviewer
The
extrafield onReasoningContentpreserves the Bedrock-specific structure (block indices, signatures, redacted content) needed for round-tripping with the Bedrock API.Checklist
fix:,feat:,build:,chore:,ci:,docs:,style:,refactor:,perf:,test:.