fix: preserve offline runtime correctness across replay and restart - #1837
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Included review availability: Your plan provides up to 8 included reviews per hour; 5 remain after this review. 📝 WalkthroughWalkthroughThe changes update React Native connectivity startup, replay reconciliation, retry handling, and Temporal-aware transaction serialization. They add compatibility, failure-path, and property tests for these behaviors. ChangesOffline runtime correctness
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~60 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant TransactionExecutor
participant OutboxManager
participant KeyScheduler
TransactionExecutor->>OutboxManager: load pending transactions
TransactionExecutor->>KeyScheduler: reconcile excluded transaction IDs
KeyScheduler-->>TransactionExecutor: retain active transaction
TransactionExecutor->>OutboxManager: remove inactive filtered records
TransactionExecutor->>TransactionExecutor: reject filtered waiting transactions
sequenceDiagram
participant OutboxManager
participant TransactionSerializer
participant Temporal
OutboxManager->>TransactionSerializer: serialize transaction with encoding 3
TransactionSerializer->>Temporal: resolve matching constructor
Temporal-->>TransactionSerializer: return constructor or error
OutboxManager->>TransactionSerializer: deserialize stored transaction
TransactionSerializer->>Temporal: restore Temporal value
Merge Risk: ⚪ Minimal · up to The changed offline retry, connectivity, and serialization paths have no identified merge-blocking risk. 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
Full details: Out of Scope Changes checkExplanation Issue Resolution Remove the scheduler, replay, outbox, initialization, and Temporal serialization changes and their tests from this pull request, or link those objectives to separate coding issues and submit them in separate pull requests. Keep the React Native detector changes and their regression tests for issue Full details: Docstring CoverageExplanation Docstring coverage is 10.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 12 files. (1 skipped: 1 unsupported.)
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Inline comments:
In `@packages/offline-transactions/src/outbox/TransactionSerializer.ts`:
- Around line 180-189: Update the Temporal serialization branch in
TransactionSerializer to require the corresponding constructor on globalThis
before returning the Temporal marker; reject recognized polyfill Temporal values
when the global constructor is missing, while preserving serialization for
supported globally available constructors.
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.changeset/fix-offline-runtime-correctness.mdpackages/offline-transactions/src/connectivity/ReactNativeOnlineDetector.tspackages/offline-transactions/src/executor/KeyScheduler.tspackages/offline-transactions/src/executor/TransactionExecutor.tspackages/offline-transactions/src/outbox/OutboxManager.tspackages/offline-transactions/src/outbox/TransactionSerializer.tspackages/offline-transactions/src/types.tspackages/offline-transactions/tests/KeyScheduler.property.test.tspackages/offline-transactions/tests/OfflineExecutor.test.tspackages/offline-transactions/tests/ReactNativeOnlineDetector.test.tspackages/offline-transactions/tests/leadership-replay.property.test.tspackages/offline-transactions/tests/transaction-serializer.property.test.ts
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Inline comments:
In `@packages/offline-transactions/src/outbox/TransactionSerializer.ts`:
- Around line 210-212: Update serializeValue so an object returned directly by
toJSON is serialized without invoking its toJSON method again, while nested
properties continue through normal serialization and retain their hooks. Adjust
the recursive path around serializeValue and the toJSON handling to carry an
immediate-return suppression state only for that returned object.
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.changeset/fix-offline-runtime-correctness.mdpackages/offline-transactions/src/OfflineExecutor.tspackages/offline-transactions/src/connectivity/ReactNativeOnlineDetector.tspackages/offline-transactions/src/executor/TransactionExecutor.tspackages/offline-transactions/src/outbox/OutboxManager.tspackages/offline-transactions/src/outbox/TransactionSerializer.tspackages/offline-transactions/tests/OfflineExecutor.test.tspackages/offline-transactions/tests/ReactNativeOnlineDetector.test.tspackages/offline-transactions/tests/leadership-replay.property.test.tspackages/offline-transactions/tests/transaction-serializer.property.test.ts
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- packages/offline-transactions/src/connectivity/ReactNativeOnlineDetector.ts
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Inline comments:
In `@packages/offline-transactions/src/executor/TransactionExecutor.ts`:
- Line 256: Update the transaction cleanup flow around
reconcilePendingTransactions and await this.outbox.removeMany so scheduler
ownership is retained or restored until durable removal and rejectTransaction
complete. Ensure a rejected outbox deletion cannot leave a still-present
transaction without its scheduler entry or unresolved optimistic state.
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.changeset/fix-offline-runtime-correctness.mdpackages/offline-transactions/src/OfflineExecutor.tspackages/offline-transactions/src/connectivity/ReactNativeOnlineDetector.tspackages/offline-transactions/src/executor/KeyScheduler.tspackages/offline-transactions/src/executor/TransactionExecutor.tspackages/offline-transactions/src/outbox/OutboxManager.tspackages/offline-transactions/src/outbox/TransactionSerializer.tspackages/offline-transactions/src/types.tspackages/offline-transactions/tests/KeyScheduler.property.test.tspackages/offline-transactions/tests/OfflineExecutor.test.tspackages/offline-transactions/tests/ReactNativeOnlineDetector.test.tspackages/offline-transactions/tests/leadership-replay.property.test.tspackages/offline-transactions/tests/transaction-serializer.property.test.ts
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- packages/offline-transactions/src/connectivity/ReactNativeOnlineDetector.ts
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Co-authored-by: Colton Demetriou <cdemetriou@valinor.co>
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This repairs three established offline-runtime behaviors: selective retry filtering no longer leaves excluded work executable or optimistic state applied, React Native connectivity uses NetInfo's subscribed latest state as its single startup/live authority, and Temporal scalars retain their identity through persistence and restart.
Root cause and repair
beforeRetryfiltered durable rows without reconciling already-scheduled rows. The executor now removes only excluded, unissued IDs, quarantines them from execution before asynchronous cleanup, and rejects each transaction as soon as its own durable removal succeeds so a sibling storage failure cannot strand already-removed work. Retry scheduling runs from executor cleanup, preserving liveness when an outbox update or permanent removal fails.fetch()source. It now relies only onaddEventListener, matching NetInfo 11.0.0–11.4.1 and preserving both synchronous and asynchronous initial delivery.3preserves all eight standard Temporal scalar types in mutations and metadata and restores them through matchingglobalThis.Temporalconstructors. A recognized value without its constructor fails before storage. A retained unreadable row fails initialization visibly with its transaction ID, remains recoverable through targeted removal, and does not create an unhandled constructor-started rejection.toJSON(key), including one hook read/call with the original receiver, no re-invocation on the immediate replacement, and normal hooks for nested properties. URLs, captured-length arrays, and same-realm boxed primitives keep their prior meanings; mutation values deliberately retain their established plain-enumeration behavior. Temporal tags are validated and read once before the canonical marker is written.Unversioned Date markers and encoding-2 escaped-object meanings remain unchanged; malformed or unknown encodings fail visibly.
Scope
This is runtime correctness only. It adds no confirmation API, custom retry-policy API, status surface, constructor-injection API, package export, dependency, or supported public method. Poison rows remain fail-fast because the package has no established quarantine/reporting contract; the existing
removeFromOutbox(id)plus restart path provides targeted recovery without inventing one.Package-weight gate
Four deletion passes removed the redundant NetInfo fetch/fence, extra scheduler state, a replay-classification allocation, a one-use Temporal detector, duplicated constructor/error paths, an async cleanup wrapper, and redundant serializer primitive nesting. The final selective-cleanup repair reuses the existing concurrent promise batch; it adds no state or helper.
-n -9Exact refreshed-base production-JS measurements (22 emitted modules per format; deterministic gzip
-n -9; Brotli quality 11):The normal-build publish tarball changes from 93,641 B packed / 538,223 B unpacked to 98,476 B / 563,136 B, or +4,835 B packed / +24,913 B unpacked. Tests and the repository changeset are excluded; package source, metadata, declarations, generated JavaScript, and maps are shipped and counted.
This non-core package misses the zero-growth target, so the positive delta is explicit. No new public abstraction, export, dependency, package entry, or public state field was added; retained compatibility branches are each exercised by deterministic wire/restart or legacy controls. The private
activeTransactionIdreplaces the old boolean running flag because selective revocation must identify and preserve issued work. The two private Temporal helpers centralize the type allowlist and the single encode/decode constructor requirement. Metadata reuses its existing private JSON-key channel with a one-framefalsesentinel and one key traversal, avoiding a new state field/helper while preserving immediate-replacement and array semantics.Splitting does not reduce installed weight. Dropping the scheduler or scalar portion would leave a deterministic established-contract failure; the React Native portion already has negative weight.
Verification
Exact original post-#1822 defect base:
179d003a14a13ddf48ffacd22b15c25087f7c5f4. Final refreshed merge base:7f6b6438cd3a5b2cfc54ea1d8ad8a2102ea9d699.7f6b6438produced 16 intended failures: seven selective reconciliation/settlement/retry-liveness failures, two redundant NetInfo startup-authority failures, five Temporal/fail-fast/recovery failures, and two initialization-observability failures. The matching ordinary live-event and established metadata JSON controls passed.1815; serializer properties cover 500 runs/property at seed20260916. The two fix(offline): fence individual outbox clear deletions #1836 clear-fence controls also pass after rebase.toJSON(key), re-invoked immediate replacements, double-read hook accessors, changing Temporal tags, live array-length reads, enumerable-only array traversal, missing retry scheduling, missing init rejection observation, poison-row skipping, and reintroduced NetInfo fetch mutants, in addition to the original scheduler/lifecycle/wire mutants.Compatibility
New records use
valueEncoding: 3. Older clients cannot read them, so clients must not mix versions or downgrade while new records remain pending. Conditional encoding would add machinery while still leaving Temporal-bearing records unreadable by old clients.Provenance and credit
tobacode/ Toba-bonjour reported the scheduler/outbox divergence and authored the original #1064 regression in285cb66d93e56a8879be33b434694520fa5f1cea.anthony2261reported and reproduced #1490. Kevin De Porre authored the detector foundation in #1137 /d5254d1e3c3acf7afe0ab7957ec8efffce36cbeb(Kyle Mathews approval and Kevin review comment; aggregate-merge co-authorsclaude[bot]andautofix-ci[bot]). Kyle Mathews and Claude Opus 4.6 added startup/online gating in #1301 /59bdde41bdde916fab9eea2aa7fbae3f93a9a718(Kevin approval; Claude Sonnet 4.6 and autofix bot co-authorship).cdemetriou-prod/ Colton Demetriou authored #1579's eight-type Temporal codec, metadata traversal, missing-constructor propagation, startup failure, and cleanup across993bb129ae75139371edc5da81d6d208511f1bcb,ecbe6794d091ea85ada8d208db80b17879b984b2,fa8bef9ce2a4fc5720e9329047146c6091c480bd, and6eb9678bc9f040f146de6f628249e49575d1c0c0. CodeRabbit's #1579 reviews correctly identified missing-constructor/fail-fast ownership, missingchangesassertions, startup propagation, and unconditional cleanup; those findings shaped this narrower port.9e41e5896f9e2f476de720823532c183e124a005(merge3c4c35d5868c908979058c4dbeae7c4ac9eab88b; CodeRabbit review; autofix-ci merge co-author). #1822's squash is3ad64a42a0088e1272176fb33c953526fed9b868, preserving6385f2968239d6c2f6eb7fdb66776e3e57385ecc,d44653ccff7ef869a85aafbef4a9d79e751643cb, andbd6d2bcfbefb3bb3ece354da8178450d30c21c4c; CodeRabbit reviewed the first two.b7b32407ef3549362cead6e0727155f9d0eaba6f(merge09776a892c73f4abd593d1eda4914cdbc20451b3); Kyle Mathews approved, and CodeRabbit reported no actionable findings.toJSONreplacement bug, and mixed-outcome selective-cleanup settlement on PR #1837. A later unattributed external review independently identified filtered settlement, init/recovery, NetInfo redundancy, metadata JSON compatibility, downgrade documentation, retry liveness, and cleanup questions.This supersedes the runtime repair proposed in #1064 and the runtime portion of #1579. It does not claim #1579's excluded constructor-injection API.
Closes #1490