fix: Hold React dispatch until the store commits

[ntucker]

Motivation

useSuspense of an endpoint that is already resolved can stay on its fallback when that response is dispatched before DataProvider has committed. React restarts the provider, the update is dropped, and a fresh NetworkManager refetches in a loop. A slow endpoint misses this because its response arrives after commit.

Solution

Until the store's first commit, usePromisifiedDispatch records reducer actions and returns the same commit promise it returns today. It does not call React's dispatch. A layout effect flushes that queue in order. The passive effect does not resolve the promise on the mount snapshot, so listeners see the reducer state after the flush commits. After that first effect, dispatches go straight to React.

Fetching still starts during render. NetworkManager.idleCallback is unchanged. This does not re-resolve a fetch that was delivered to a provider React discarded. A managers array kept outside DataProvider can still leave Suspense on the fallback in that case.

Open questions

N/A

  

[changeset-bot]

🦋 Changeset detected

Latest commit: 88e1542

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

This PR includes changesets to release 17 packages

Name	Type
@data-client/core	Patch
@data-client/endpoint	Patch
@data-client/graphql	Patch
@data-client/img	Patch
@data-client/normalizr	Patch
@data-client/react	Patch
@data-client/rest	Patch
@data-client/test	Patch
@data-client/use-enhanced-reducer	Patch
@data-client/vue	Patch
example-benchmark	Patch
example-benchmark-react	Patch
normalizr-github-example	Patch
normalizr-redux-example	Patch
normalizr-relationships	Patch
test-bundlesize	Patch
coinbase-lite	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Actions	Updated
docs-site	Ignored		Sep 24, 2026 4:39pm UTC

[github-actions]

Benchmark React

Details

Benchmark suite	Current: 88e1542	Previous: a76996a	Ratio
data-client: getlist-100	135.14 ops/s (± 4.6%)	125 ops/s (± 4.8%)	0.92
data-client: getlist-500	43.86 ops/s (± 3.4%)	39.84 ops/s (± 5.5%)	0.91
data-client: update-entity	333.33 ops/s (± 9.4%)	312.5 ops/s (± 7.2%)	0.94
data-client: update-user	303.03 ops/s (± 7.6%)	294.12 ops/s (± 7.8%)	0.97
data-client: getlist-500-sorted	42.93 ops/s (± 9.7%)	43.39 ops/s (± 9.2%)	1.01
data-client: update-entity-sorted	294.12 ops/s (± 5.8%)	263.16 ops/s (± 5.9%)	0.89
data-client: update-entity-multi-view	322.58 ops/s (± 8.1%)	277.78 ops/s (± 7.0%)	0.86
data-client: list-detail-switch-10	10.41 ops/s (± 10.6%)	7.22 ops/s (± 5.2%)	0.69
data-client: update-user-10000	67.57 ops/s (± 15.3%)	71.43 ops/s (± 12.4%)	1.06
data-client: invalidate-and-resolve	36.77 ops/s (± 5.9%)	32.95 ops/s (± 5.6%)	0.90
data-client: unshift-item	200 ops/s (± 4.6%)	188.68 ops/s (± 5.9%)	0.94
data-client: delete-item	270.27 ops/s (± 6.2%)	250 ops/s (± 4.4%)	0.93
data-client: move-item	161.33 ops/s (± 9.9%)	158.77 ops/s (± 8.3%)	0.98

This comment was automatically generated by workflow using github-action-benchmark.

[github-actions]

Size Change: +217 B (+0.21%)

Total Size: 103 kB

📦 View Changed

Filename	Size	Change
examples/test-bundlesize/dist/rdcClient.js	11 kB	+108 B (+1%)
examples/test-bundlesize/dist/rdcNextjs.js	12.4 kB	+109 B (+0.88%)

ℹ️ View Unchanged

Filename	Size
examples/test-bundlesize/dist/App.js	1.46 kB
examples/test-bundlesize/dist/polyfill.js	307 B
examples/test-bundlesize/dist/rdcEndpoint.js	8.07 kB
examples/test-bundlesize/dist/rdcPipeableStream.js	9.63 kB
examples/test-bundlesize/dist/react.js	59.6 kB
examples/test-bundlesize/dist/webpack-runtime.js	784 B

_{compressed-size-action}