Document build_full_result contract and log dropped members - #3767
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jonathan343 wants to merge 1 commit into
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Document build_full_result contract and log dropped members#3767jonathan343 wants to merge 1 commit into
jonathan343 wants to merge 1 commit into
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build_full_result only aggregates result_keys and non_aggregate_keys; other top-level output members are silently dropped. Document this and emit a DEBUG log naming dropped members so callers can spot missing fields instead of debugging a mystery.
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Summary
PageIterator.build_full_result()silently drops any top-level output member that isn't aresult_keyornon_aggregate_key. This PR adds a docstring describing the aggregation contract and a DEBUG log naming dropped members, so users who hit a missing field get a breadcrumb instead of debugging a silent omission.Background
build_full_result()collapses a paginated response into a single dict, aggregating onlyresult_keyvalues (summed across pages) and members listed innon_aggregate_keys(supplied per-service viapaginators-1.sdk-extras.jsonoverlays). Everything else is dropped from the final response. We maintained those overlays strictly because AWS CLI v1 shared our release stack and enforced pagination validation due to it's auto-pagination requirements. CLI v1 now vendors its own botocore, so this improves the experience for the remaining directbuild_full_result()callers without requiring per-service customizations.Customer experience
No behavior change. A user hitting a missing field in the future now gets a DEBUG breadcrumb (visible under
boto3.set_stream_logger('')) naming the dropped members.By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.