feat(types): export InferCollectionType type helper by kevin-dp · Pull Request #1237 · TanStack/db

kevin-dp · 2026-02-12T11:17:55Z

Summary

Exports the existing InferCollectionType type helper from the @tanstack/db package entry point so consumers can use it to infer the item type from a collection instance

Closes #675

Usage

import { InferCollectionType, createLocalOnlyCollection } from '@tanstack/db'

const usersCollection = createLocalOnlyCollection<{ id: string; name: string }>({
  id: 'users',
  primaryKey: 'id',
})

type User = InferCollectionType<typeof usersCollection>
// ^? { id: string; name: string }

Test plan

Package builds successfully with the new export
Type appears in both ESM and CJS declaration files

🤖 Generated with Claude Code

changeset-bot · 2026-02-12T11:18:04Z

🦋 Changeset detected

Latest commit: 750feb5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 12 packages

Name	Type
@tanstack/db	Patch
@tanstack/angular-db	Patch
@tanstack/electric-db-collection	Patch
@tanstack/offline-transactions	Patch
@tanstack/powersync-db-collection	Patch
@tanstack/query-db-collection	Patch
@tanstack/react-db	Patch
@tanstack/rxdb-db-collection	Patch
@tanstack/solid-db	Patch
@tanstack/svelte-db	Patch
@tanstack/trailbase-db-collection	Patch
@tanstack/vue-db	Patch

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pkg-pr-new · 2026-02-12T11:19:37Z

More templates

@tanstack/angular-db

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@tanstack/db

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@tanstack/db-ivm

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@tanstack/electric-db-collection

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@tanstack/offline-transactions

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@tanstack/powersync-db-collection

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@tanstack/query-db-collection

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@tanstack/react-db

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@tanstack/rxdb-db-collection

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@tanstack/solid-db

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@tanstack/svelte-db

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@tanstack/trailbase-db-collection

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@tanstack/vue-db

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commit: 3c8b8c2

github-actions · 2026-02-12T11:20:14Z

Size Change: 0 B

Total Size: 92 kB

ℹ️ View Unchanged

Filename	Size
`./packages/db/dist/esm/collection/change-events.js`	1.39 kB
`./packages/db/dist/esm/collection/changes.js`	1.22 kB
`./packages/db/dist/esm/collection/events.js`	388 B
`./packages/db/dist/esm/collection/index.js`	3.32 kB
`./packages/db/dist/esm/collection/indexes.js`	1.1 kB
`./packages/db/dist/esm/collection/lifecycle.js`	1.75 kB
`./packages/db/dist/esm/collection/mutations.js`	2.34 kB
`./packages/db/dist/esm/collection/state.js`	3.49 kB
`./packages/db/dist/esm/collection/subscription.js`	3.71 kB
`./packages/db/dist/esm/collection/sync.js`	2.41 kB
`./packages/db/dist/esm/deferred.js`	207 B
`./packages/db/dist/esm/errors.js`	4.7 kB
`./packages/db/dist/esm/event-emitter.js`	748 B
`./packages/db/dist/esm/index.js`	2.69 kB
`./packages/db/dist/esm/indexes/auto-index.js`	742 B
`./packages/db/dist/esm/indexes/base-index.js`	766 B
`./packages/db/dist/esm/indexes/btree-index.js`	2.17 kB
`./packages/db/dist/esm/indexes/lazy-index.js`	1.1 kB
`./packages/db/dist/esm/indexes/reverse-index.js`	538 B
`./packages/db/dist/esm/local-only.js`	837 B
`./packages/db/dist/esm/local-storage.js`	2.1 kB
`./packages/db/dist/esm/optimistic-action.js`	359 B
`./packages/db/dist/esm/paced-mutations.js`	496 B
`./packages/db/dist/esm/proxy.js`	3.75 kB
`./packages/db/dist/esm/query/builder/functions.js`	733 B
`./packages/db/dist/esm/query/builder/index.js`	4.09 kB
`./packages/db/dist/esm/query/builder/ref-proxy.js`	1.05 kB
`./packages/db/dist/esm/query/compiler/evaluators.js`	1.42 kB
`./packages/db/dist/esm/query/compiler/expressions.js`	430 B
`./packages/db/dist/esm/query/compiler/group-by.js`	1.81 kB
`./packages/db/dist/esm/query/compiler/index.js`	2.02 kB
`./packages/db/dist/esm/query/compiler/joins.js`	2.07 kB
`./packages/db/dist/esm/query/compiler/order-by.js`	1.45 kB
`./packages/db/dist/esm/query/compiler/select.js`	1.06 kB
`./packages/db/dist/esm/query/expression-helpers.js`	1.43 kB
`./packages/db/dist/esm/query/ir.js`	673 B
`./packages/db/dist/esm/query/live-query-collection.js`	360 B
`./packages/db/dist/esm/query/live/collection-config-builder.js`	5.43 kB
`./packages/db/dist/esm/query/live/collection-registry.js`	264 B
`./packages/db/dist/esm/query/live/collection-subscriber.js`	2.42 kB
`./packages/db/dist/esm/query/live/internal.js`	145 B
`./packages/db/dist/esm/query/optimizer.js`	2.56 kB
`./packages/db/dist/esm/query/predicate-utils.js`	2.97 kB
`./packages/db/dist/esm/query/subset-dedupe.js`	921 B
`./packages/db/dist/esm/scheduler.js`	1.3 kB
`./packages/db/dist/esm/SortedMap.js`	1.3 kB
`./packages/db/dist/esm/strategies/debounceStrategy.js`	247 B
`./packages/db/dist/esm/strategies/queueStrategy.js`	428 B
`./packages/db/dist/esm/strategies/throttleStrategy.js`	246 B
`./packages/db/dist/esm/transactions.js`	2.9 kB
`./packages/db/dist/esm/utils.js`	924 B
`./packages/db/dist/esm/utils/browser-polyfills.js`	304 B
`./packages/db/dist/esm/utils/btree.js`	5.61 kB
`./packages/db/dist/esm/utils/comparison.js`	952 B
`./packages/db/dist/esm/utils/cursor.js`	457 B
`./packages/db/dist/esm/utils/index-optimization.js`	1.51 kB
`./packages/db/dist/esm/utils/type-guards.js`	157 B

_{compressed-size-action::db-package-size}

github-actions · 2026-02-12T11:20:52Z

Size Change: 0 B

Total Size: 3.7 kB

ℹ️ View Unchanged

Filename	Size
`./packages/react-db/dist/esm/index.js`	225 B
`./packages/react-db/dist/esm/useLiveInfiniteQuery.js`	1.17 kB
`./packages/react-db/dist/esm/useLiveQuery.js`	1.34 kB
`./packages/react-db/dist/esm/useLiveSuspenseQuery.js`	559 B
`./packages/react-db/dist/esm/usePacedMutations.js`	401 B

_{compressed-size-action::react-db-package-size}

samwillis

LGTM

Closes #675 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kevin-dp · 2026-02-12T14:31:22Z

Closing this as another PR has already exported this type in main.

kevin-dp force-pushed the expose-inferCollectionType branch from e43e6b5 to 3c8b8c2 Compare February 12, 2026 11:59

samwillis approved these changes Feb 12, 2026

View reviewed changes

Export InferCollectionType type helper

750feb5

Closes #675 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kevin-dp force-pushed the expose-inferCollectionType branch from 3c8b8c2 to 750feb5 Compare February 12, 2026 14:29

kevin-dp closed this Feb 12, 2026

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feat(types): export InferCollectionType type helper#1237

feat(types): export InferCollectionType type helper#1237
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kevin-dp commented Feb 12, 2026

Summary

Usage

Test plan

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