feat: Add OnlineStore for MongoDB#6025

Merged

ntkathole merged 47 commits intofeast-dev:masterfrom

caseyclements:INTPYTHON-297-MongoDB-Feast-Integration

Mar 10, 2026

Commits on Mar 10, 2026

Initial commit on INTPYTHON-297-MongoDB-Feast-Integration
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Added mongodb to project.optional-dependencies in pyproject.toml. Now pymongo is found as extra
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Checkpoint. Passing tests.unit.online_store.test_online_writes.TestOnlineWrites with default args of MongoDBOnlineStoreConfig. Lots to do.
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Handle Nan in dfs for test_online_writes.py. Now all tests in the module pass
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Removed suffix of implementation: mongodb_openai -> mongodb
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Moved MongoDBOnlineStore to feast.infra.online_store.contrib
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Formatting
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Refactor online_read that converts bson to proto. Left two methods for now. simply and transformming
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Remove file added early during discovery
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Formatting
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Added version of test that uses testcontainers mongodb instead of assuming one is running
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Create Make target for universal tests
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Cleanup
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Removed temporary integration tests requiring one to spin up own mongodb server.
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Format
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Typing
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Implemented ASync API and Tests
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Removed offline store stubs. The first PR will only contain the OnlineStore
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Moved mongodb_online_store out of cobtrib package.
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Add documentation.
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Cleanups and docstrings
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Fixed another reference to contrib dir
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Typos
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Made _convert_raw_docs_to_proto staticmethods private
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After benchmarking two alogithm for conevrting read results from bson to proto, removed the naive one. It was outcompeted 3X across dimensions
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Add extra unit tests
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Formatting
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Fixes in pyproject.toml
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Fixed Detect secrets false positives.
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Update sdk/python/feast/infra/online_stores/mongodb_online_store/mongodb.py

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devin-ai-integration[bot]
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Fix CI: guard pymongo imports and skip test module when pymongo unavailable
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Fix: return (None, None) when entity doc exists but feature view was never written
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Update pixi.lock after adding mongodb optional dependency to pyproject.toml
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fix: catch FeastExtrasDependencyImportError in doctest runner
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fix: update PYTEST_PLUGINS path for mongodb online store tests
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fix: broaden import exception handling in doctest runner to catch TypeError and other third-party import errors
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fix: pass onerror to pkgutil.walk_packages to suppress non-ImportError package import failures
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fix: update stale tests.integration.feature_repos imports to tests.universal.feature_repos
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feat: add mongodb to ValidOnlineStoreDBStorePersistenceTypes in feast-operator
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feat: add Feast driver metadata to MongoDB client instantiations
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docs: update MongoDB online store status from alpha to preview
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fix: add mongodb to kubebuilder Enum annotations for OnlineStoreDBStorePersistence
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Update +GOLANGCI_LINT_VERSION to fix upstream issue golang/go#74462
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fix: raise ValueError in _get_client_async for invalid config type, consistent with sync counterpart
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fix: Added mongodb to operator yamls

ntkathole
authored and
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Small change suggested by ntkathole
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Factor out write logic into utility function making sync/async essentially identical.
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