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Title: perf: Replace MessageToDict with optimized custom dict builder by abhijeet-dhumal · Pull Request #6015 · feast-dev/feast · GitHub

Open Graph Title: perf: Replace MessageToDict with optimized custom dict builder by abhijeet-dhumal · Pull Request #6015 · feast-dev/feast

X Title: perf: Replace MessageToDict with optimized custom dict builder by abhijeet-dhumal · Pull Request #6015 · feast-dev/feast

Description: Summary Fixes #6013 The feature server uses google.protobuf.json_format.MessageToDict for converting GetOnlineFeaturesResponse to JSON, but this generic converter is slow due to reflection-based field introspection. Changes Add feature_server_utils.py with convert_response_to_dict() function Custom dict builder optimized for GetOnlineFeaturesResponse structure Direct field access instead of reflection Efficient type-specific value extraction Serialize top-level status bool field (omitted when false, matching proto3 default behavior) Add comprehensive unit tests for the new serialization Performance Impact ~4x faster serialization, saving 5-15ms per request for typical feature responses with 50-200 features. Test Plan Added unit tests in test_feature_server_utils.py Tests verify output matches MessageToDict + proto_json.patch() format Tests cover all Value types, timestamps, metadata, status codes, top-level status field Performance test validates speedup Passes make lint-python

Open Graph Description: Summary Fixes #6013 The feature server uses google.protobuf.json_format.MessageToDict for converting GetOnlineFeaturesResponse to JSON, but this generic converter is slow due to reflection-based fi...

X Description: Summary Fixes #6013 The feature server uses google.protobuf.json_format.MessageToDict for converting GetOnlineFeaturesResponse to JSON, but this generic converter is slow due to reflection-based fi...

Opengraph URL: https://github.com/feast-dev/feast/pull/6015

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b28ddf9 perf: Replace MessageToDict with optimized custom dict builder abhijeet-dhumal Feb 25, 2026 https://github.com/feast-dev/feast/pull/6015/commits/b28ddf9bd362a6636621ac0244b28cd7d71a2cd2
40846ad Fix test: Use GetOnlineFeaturesResponseMetadata instead of non-existe… abhijeet-dhumal Mar 2, 2026 https://github.com/feast-dev/feast/pull/6015/commits/40846ad545f5b133b4702a57939fae248af42767
ad4882b fix: Rename to convert_response_to_dict, fix timestamp float-rounding… abhijeet-dhumal Mar 10, 2026 https://github.com/feast-dev/feast/pull/6015/commits/ad4882b51659b0b29c508efcf4ed480f6fcf93c3
698d0a1 fix: Return raw bytes to match proto_json.patch() behavior abhijeet-dhumal Mar 10, 2026 https://github.com/feast-dev/feast/pull/6015/commits/698d0a17cb2c6c79cc1364f1985f5fb5552abeb4
0c0637b fix: serialize top-level status field in convert_response_to_dict abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/0c0637b14b25fe4bfcb9d6314f6a2f3fbe90c461
3ac1755 fix: replace deprecated ORJSONResponse with JSONResponse abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/3ac17556ef181c8dc3a366c94aa7d6fd022243e2
5fff274 fix: handle set, list, and map Value types in _value_to_native abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/5fff274a0f9181e8d01c386da9c05e0f135d7414
b2f2909 fix: warn on scalar_map_val; fix test_unix_timestamp_list_val; docume… abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/b2f29090b9d36be92e0a1f1b98cb4fefe2c99652
c559ac5 docs: document float_precision=18 trade-off; add double_val round-tri… abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/c559ac5e09345abaaea5d73acef05f3e8c8244c2
388f89b fix: remove leftover orjson dead code causing mypy no-redef error abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/388f89b48897d615614ba2db515369fbc0f84bf4
ecce3cf fix: base64-encode bytes_val and bytes_list_val for JSON serialization abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/ecce3cf709e688db5b0fe680cd53bf7ee3101414
25e99b1 style: remove extra blank line in feature_server_utils.py abhijeet-dhumal May 27, 2026 https://github.com/feast-dev/feast/pull/6015/commits/25e99b15c85632c1342b12ae719b16769b06a281
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