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WalkthroughThis change adds an extension registry for trigger providers and connects registered providers to trigger configuration, delivery, ingress, OAuth, and manual-token connection flows. It also adds runtime ingress-origin configuration, provider documentation, and refreshed secret-scan baseline line numbers. ChangesProvider Extensions
Secret Scan Baseline Refresh
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~50 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Ingress as Trigger ingress endpoint
participant Registry as Provider registry
participant Verifier as Provider verifier
participant Ledger as Event ledger
Ingress->>Registry: Resolve provider and verifier
Registry-->>Ingress: Return provider hooks
Ingress->>Verifier: Verify method and payload
Verifier-->>Ingress: Return verification result
Ingress->>Ledger: Record event when no source items are returned
Ingress-->>Ingress: Return verifier-defined response
Merge Risk: 🟡 Moderate · up to
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 30.37% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 135 functions across 36 files. (10 skippe… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
| Test Quality And Coverage | |
The tests use the correct patterns and cover the main push lifecycle, registry ownership, OAuth adapters, and frontend token entry. Coverage is incomplete for several new provider paths. `DatabaseConn… | Add backend pytest coverage for manual-token profile eligibility and deployment/policy filtering; manual-credential validator invocation, missing-validator rejection, and identity/result mutation rejection; provider ingress source-item appe… |
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Check name Status Explanation Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title "feat(triggers): support provider-owned connection and source runtimes" matches the main change. The PR adds a trigger-provider registry, entry-point loading from installed integration bundl… Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Test Coverage For New Implementations The PR includes substantial tests for the new functionality. Backend unit tests cover provider admission, ownership, cache invalidation, fail-closed validation, OAuth adapters, endpoint checks, JSON t… Test File Naming And Structure The changed tests follow the repository patterns. Backend files use test_*.pynames undersrc/backend/tests; frontend usesAddConnectionDialog.slackToken.test.tsxunder `src/frontend/src/__tests…Excessive Mock Usage Warning PASS — The changed tests use mocks at external boundaries, not for the core behavior under test. test_provider_lifecycle.pyexercises real database sessions, trigger services, ingress routes, dispat…Full details: Title check
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Explanation
The title "feat(triggers): support provider-owned connection and source runtimes" matches the main change. The PR adds a trigger-provider registry, entry-point loading from installed integration bundles, and provider hooks for connections, source collection, subscriptions, ingress verification, and OAuth. It is concise, specific, and follows the conventional-commit style. It does not cover every detail, such as the frontend manual-token entry, but that is expected.
Full details: Test Coverage For New Implementations
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Explanation
The PR includes substantial tests for the new functionality. Backend unit tests cover provider admission, ownership, cache invalidation, fail-closed validation, OAuth adapters, endpoint checks, JSON token exchange, refresh, expiry, and tenant validation.
test_provider_lifecycle.pyexercises database and API behavior for reconciliation, activation, signed POST delivery, GET challenges, deduplication, dispatch, polling fallback, policy failures, origin checks, and cleanup. The frontend.test.tsxfile tests provider-validated token entry and submission, while existing Slack token tests remain. All changed test files follow the repository naming conventions.
Full details: Test File Naming And Structure
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Explanation
The changed tests follow the repository patterns. Backend files use
test_*.pynames undersrc/backend/tests; frontend usesAddConnectionDialog.slackToken.test.tsxundersrc/frontend/src/__tests__, which matches JesttestMatch. Pytest tests use fixtures,monkeypatch, async support,pytest.raises, and cleanup through fixture scope. Test names are descriptive. The new tests cover successful provider OAuth and lifecycle flows, registry loading, dispatch, cleanup, and token creation. They also cover unknown providers, invalid endpoints, cache removal, malformed mechanisms, policy and ownership failures, origin rejection, duplicate delivery, and accessibility. The lifecycle tests are consistent with existing database-backed trigger tests kept under the unit service directory, so no directory or integration-structure issue is introduced.
Full details: Excessive Mock Usage Warning
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Explanation
PASS — The changed tests use mocks at external boundaries, not for the core behavior under test.
test_provider_lifecycle.pyexercises real database sessions, trigger services, ingress routes, dispatch, cleanup, andhttpxclients; its monkeypatches only install the synthetic provider and controlled settings. OAuth tests replace the provider adapter and token HTTP request to avoid network calls while asserting shared validation. The frontend test uses the existing mocked API hooks and asserts rendered UI and submitted data. No excessive mock usage or missing integration coverage is evident.
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Full details: Docstring Coverage
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Explanation
Docstring coverage is 30.37% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 135 functions across 36 files. (10 skipped: 10 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
Full details: Test Quality And Coverage
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Explanation
The tests use the correct patterns and cover the main push lifecycle, registry ownership, OAuth adapters, and frontend token entry. Coverage is incomplete for several new provider paths.
DatabaseConnectionResolverService.createadds provider manual-credential validation, but the lifecycle fixture only returns the input and does not verify invocation or rejection cases.list_integrationsmanual-token profile logic has only a schema assertion and a frontend fixture. No tests exercise ingresssource_items, custom response status/media/body limits, successful provider collection, provider renewal, custom ingress secrets, or listener registration. The lifecycle tests explicitly use collectors that fail if called, so they verify skipping rather than successful collection.Resolution
Add backend pytest coverage for manual-token profile eligibility and deployment/policy filtering; manual-credential validator invocation, missing-validator rejection, and identity/result mutation rejection; provider ingress source-item append and foreign-item rejection; custom response status/media/body validation and invalid verifier results; successful and invalid provider collector results; provider renewal and ingress-secret hooks; and listener adapter registration. Keep the existing async pytest and frontend Jest/RTL patterns.
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✅ Migration Validation Passed All migrations follow the Expand-Contract pattern correctly. |
✅ Test Coverage AdvisorNo source changes detected without accompanying tests. Thanks for keeping coverage up! 🎉
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Actionable comments posted: 4
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Inline comments:
Review comments at @src/backend/base/langflow/api/v1/trigger_ingress.py:
- Around line 342-343: Replace the provider-only check in the trigger ingress
path with a shared source-item validator, and reuse it in collect_source.
Validate that each item contains provider, resource, id, version, and data; that
provider matches the expected provider; and that resource, id, and version are
non-empty strings within their respective column limits of 512, 512, and 255
characters. Reject invalid items through the existing uniform rejection path
before append_and_advance.
Review comments at
@src/backend/base/langflow/services/triggers/listeners/adapters.py:
- Around line 363-364: Update ProviderSourcePollAdapter.poll to allow a trigger
when its mechanism_id matches the registered poll_mechanism for its kind, while
preserving the existing built-in mechanism checks and stopping behavior. Add
coverage confirming poll invokes collect for a provider using a custom poll
mechanism.
Review comments at
@src/backend/base/langflow/services/triggers/providers/registry.py:
- Line 75: Update the provider_id validation in the registry entry to use
_IDENTIFIER instead of _KIND, matching the ingress route’s identifier rule and
ensuring provider IDs remain compatible with kind ownership lookup.
Review comments at
@src/backend/base/langflow/services/triggers/source_subscription.py:
- Around line 203-204: In ensure_subscription, move provider delegation through
extension.provision after the return for an existing subscription with an
unchanged connection_id. This lets active subscriptions short-circuit before
provider provisioning while preserving delegation for subscriptions that need
provisioning.
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📒 Files selected for processing: 46
.secrets.baselinedocs/features/trigger-provider-runtime.mdsrc/backend/base/langflow/api/v1/integrations.pysrc/backend/base/langflow/api/v1/trigger_ingress.pysrc/backend/base/langflow/api/v1/triggers.pysrc/backend/base/langflow/services/connection/oauth/adapter.pysrc/backend/base/langflow/services/connection/oauth/config.pysrc/backend/base/langflow/services/connection/oauth/providers.pysrc/backend/base/langflow/services/connection/service.pysrc/backend/base/langflow/services/triggers/capabilities.pysrc/backend/base/langflow/services/triggers/dispatcher.pysrc/backend/base/langflow/services/triggers/ingress/intake.pysrc/backend/base/langflow/services/triggers/ingress/verifiers.pysrc/backend/base/langflow/services/triggers/listeners/adapters.pysrc/backend/base/langflow/services/triggers/principal.pysrc/backend/base/langflow/services/triggers/providers/registry.pysrc/backend/base/langflow/services/triggers/reconciliation.pysrc/backend/base/langflow/services/triggers/service.pysrc/backend/base/langflow/services/triggers/source_arming.pysrc/backend/base/langflow/services/triggers/source_cleanup.pysrc/backend/base/langflow/services/triggers/source_clients.pysrc/backend/base/langflow/services/triggers/source_delivery.pysrc/backend/base/langflow/services/triggers/source_poll.pysrc/backend/base/langflow/services/triggers/source_runtime.pysrc/backend/base/langflow/services/triggers/source_subscription.pysrc/backend/base/langflow/services/triggers/subscriptions.pysrc/backend/tests/unit/api/v1/test_integration_schema_stability.pysrc/backend/tests/unit/services/connection/test_provider_oauth_adapter.pysrc/backend/tests/unit/services/triggers/test_provider_lifecycle.pysrc/backend/tests/unit/services/triggers/test_provider_registry.pysrc/backend/tests/unit/services/triggers/test_source_poll.pysrc/backend/tests/unit/services/triggers/test_source_subscription.pysrc/frontend/src/controllers/API/queries/connections/types.tssrc/frontend/src/locales/de.jsonsrc/frontend/src/locales/en.jsonsrc/frontend/src/locales/es.jsonsrc/frontend/src/locales/fr.jsonsrc/frontend/src/locales/ja.jsonsrc/frontend/src/locales/ko.jsonsrc/frontend/src/locales/pt.jsonsrc/frontend/src/locales/zh-Hans.jsonsrc/frontend/src/pages/SettingsPage/pages/ConnectionsPage/__tests__/AddConnectionDialog.slackToken.test.tsxsrc/frontend/src/pages/SettingsPage/pages/ConnectionsPage/components/AddConnectionDialog.tsxsrc/frontend/src/pages/SettingsPage/pages/ConnectionsPage/components/SlackTokenFields.tsxsrc/frontend/src/pages/SettingsPage/pages/ConnectionsPage/hooks/useSlackTokenConnection.tssrc/lfx/src/lfx/services/settings/groups/runtime.py
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Installed provider bundles can now add governed trigger sources without editing the Slack, Google, and Microsoft implementations. The runtime loads hooks only when a trusted installed bundle owns the validated provider manifest and components.
Providers retain the existing connection ownership, background consent, identity, action-policy, OAuth, deduplication, lease, and cleanup boundaries. The extension API covers polling, direct push, authenticated handshakes, custom listeners, transactional admission, and nonexpiring subscriptions. Connections support provider-validated manual credentials with optional required expiration and identity selection.
Review fixes validate source batches before writes, resolve current descriptors after reload, preserve queued events while a provider is unavailable, keep policy denial separate from credential reconnect, and fence listener event writes against captured lease generation and trigger configuration. GET verification cannot mutate subscription or event state. Listener writes lock connection parents before leases and triggers, avoiding a PostgreSQL deadlock with concurrent connection deletion.
This is the shared prerequisite for the provider PRs. Provider adapters and default distribution dependency registration remain in their respective changes. The included CI seam validates later-provider contracts without changing frozen wave-one acceptance.
Verification
Python commands used
UV_NO_SYNC=1, the prepared read-only langflow-base/lfx development environment, and this worktree first onPYTHONPATH.LANGFLOW_TEST_DATABASE_URI,uv run --no-sync pytest src/backend/tests/integration/triggers/test_listener_connection_deletion.py src/backend/tests/unit/services/triggers/test_listener_supervisor.py src/backend/tests/unit/services/triggers/test_listener_leases.py src/backend/tests/unit/services/triggers/test_listener_process.py src/backend/tests/unit/services/triggers/test_slack_socket_mode.py -n4 -q -o addopts= -o cache_dir=/private/tmp/trigger-runtime-pytest-cache -o log_cli=false— 95 passed at77c8ca0d74, including three real concurrent deletion/emission/cursor PostgreSQL regressions. Each race reproduced a deadlock before the source fix; isolated test databases are removed afterward.uv run --no-sync pytest src/backend/tests/unit/services/triggers/test_provider_lifecycle.py src/backend/tests/unit/services/triggers/test_execution_identity.py src/backend/tests/unit/services/triggers/test_dispatcher_dispatch.py src/backend/tests/unit/services/triggers/test_listener_supervisor.py src/backend/tests/unit/services/triggers/test_listener_leases.py src/backend/tests/unit/services/triggers/test_listener_process.py src/backend/tests/unit/services/triggers/test_slack_socket_mode.py -n4 -q -o addopts= -o cache_dir=/private/tmp/trigger-runtime-pytest-cache -o log_cli=false— 177 passed atd0b21322fc.npm test -- --runInBand --silent src/pages/SettingsPage/pages/ConnectionsPage/__tests__ src/controllers/API/queries/connections/__tests__ src/customization/components/__tests__/custom-connection-authorization.test.ts --cacheDirectory=/private/tmp/trigger-runtime-jest-cache— 158 passed across 11 suites, including rendered creation, reopen/refetch, expiration, identity selection, and axe checks.node --expose-gc /private/tmp/trigger-runtime-ts-baseline.cjs— the full type-check has 255 existing diagnostics in 89 files. The read-only release-base comparison used the same TypeScript 5.9.3, tsconfig, dependencies, and 2,631 roots: all 255 diagnostics are identical, with zero additions, removals, or position changes.node /private/tmp/trigger-runtime-manual-identity-ibm-scan.cjsand the corresponding DST/expiration fixture checks — IBM Equal Access found 0 violations in the actual rendered dialogs. Fixtures supply the application title and main landmark; a full live application route was not scanned.Before the listener lock-order followup, the broader gate at
d0b21322fcpassed 1,181 tests with 3 skipped usinguv run --no-sync pytest src/backend/tests/unit/services/triggers src/backend/tests/unit/services/connection src/backend/tests/unit/api/v1/test_trigger*.py src/backend/tests/unit/api/v1/test_connection*.py src/backend/tests/unit/api/v1/test_integration*.py src/backend/tests/unit/api/utils/test_migration_pause.py -n4 -q -o addopts= -o cache_dir=/private/tmp/trigger-runtime-pytest-cache -o log_cli=false. Earlier atffe23b278b,uv run --no-sync pytest scripts/ci/ -q -o addopts= -o cache_dir=/private/tmp/trigger-runtime-ci-pytest-cachepassed 678 tests with 1 skipped.Final independent delta reviews, full CI at the uploaded head, and live provider registrations/network smoke remain open. Provider-specific packaging and acceptance remain with the corresponding PRs.