Replace @tanstack/pacer with @tanstack/pacer-lite #880
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Replace @tanstack/pacer with @tanstack/pacer-lite for paced mutations implementation. The lite version provides the same core functionality with minimal overhead and no external dependencies, making it more suitable for library use. Changes: - Update package.json to use @tanstack/pacer-lite ^0.1.0 - Replace Debouncer with LiteDebouncer in debounceStrategy - Replace Throttler with LiteThrottler in throttleStrategy - Replace AsyncQueuer with LiteQueuer in queueStrategy - Implement manual promise chaining in queueStrategy to maintain async serialization behavior All tests pass and the build completes successfully.
🦋 Changeset detectedLatest commit: 2a86676 The changes in this PR will be included in the next version bump. This PR includes changesets to release 11 packages
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@tanstack/angular-db
@tanstack/db
@tanstack/db-ivm
@tanstack/electric-db-collection
@tanstack/offline-transactions
@tanstack/powersync-db-collection
@tanstack/query-db-collection
@tanstack/react-db
@tanstack/rxdb-db-collection
@tanstack/solid-db
@tanstack/svelte-db
@tanstack/trailbase-db-collection
@tanstack/vue-db
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Size Change: +26 B (+0.03%) Total Size: 86.2 kB
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The dependency is only needed in @tanstack/db package.
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Size Change: 0 B Total Size: 3.34 kB ℹ️ View Unchanged
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KevinVandy
approved these changes
Nov 21, 2025
Add comprehensive unit tests for createPacedMutations and all three strategies (debounce, throttle, queue) that test the core functionality directly without React dependencies. Tests cover: - Debounce strategy with timer reset and leading edge execution - Throttle strategy with leading/trailing edge behavior - Queue strategy with sequential processing and serialization - Error handling for failed transactions - Transaction batching and merging behavior These tests verify the pacer-lite migration maintains correct behavior.
Use type assertions to handle vitest mock.calls type inference issues.
Remove redundant strategy behavior tests from React package since those are now comprehensively tested in the core package. Kept: - Simple smoke tests for each strategy (verify React hook wrapper works) - All memoization tests (React-specific behavior) Removed: - Detailed debounce timer reset tests (now in core) - Detailed throttle leading/trailing tests (now in core) - Queue serialization tests (now in core) - Transaction batching tests (now in core) Reduced test file from 472 to 249 lines with better separation of concerns.
- Add explanatory comments for manual promise chaining in queueStrategy explaining why LiteQueuer lacks async queue primitives and how we compensate with manual serialization - Enhance error handling documentation clarifying that errors are surfaced via transaction.isPersisted and don't break the chain - Add test coverage for queue with zero/no wait option - Extract createReadyCollection helper to reduce test duplication
KyleAMathews
deleted the
claude/paced-mutations-01Jm8KbaZGKyRxTXj8NkbkcN
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Replace @tanstack/pacer with @tanstack/pacer-lite for paced mutations implementation. The lite version provides the same core functionality with minimal overhead and no external dependencies, making it more suitable for library use.
Changes:
All tests pass and the build completes successfully.
🎯 Changes
✅ Checklist
pnpm test:pr.🚀 Release Impact