WebSocket Timeout Fix

[stevensJourney]

Overview

This is a slightly alternative approach to #668. The fix here declares the stream early which should avoid the (TypeError: Cannot read property 'close' of undefined') issue highlighted in the linked PR. Additionally the changes here allow the WebSocket initial connection request to be aborted without waiting for it to reject/complete.

Testing

I've added a button to change the connection status to the React Supabase Todolist demo. I've also testing a slow connection attempt by running the PowerSync service locally with a paused attached debugger.

[changeset-bot]

🦋 Changeset detected

Latest commit: 9f938a9

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

This PR includes changesets to release 7 packages

Name	Type
@powersync/common	Patch
@powersync/react-native	Patch
@powersync/web	Patch
@powersync/node	Patch
@powersync/op-sqlite	Patch
@powersync/tanstack-react-query	Patch
@powersync/diagnostics-app	Patch

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[Copilot]

Pull Request Overview

This PR fixes a WebSocket timeout issue that could cause uncaught exceptions by restructuring the connection flow to handle aborts more gracefully. The fix moves the stream creation earlier in the process and adds proper cleanup for WebSocket connections that are aborted before completion.

Key changes:

• Move DataStream creation before WebSocket connection attempt to enable early abort handling
• Add listener to close WebSocket connections when stream is closed before RSocket connection completes
• Reorganize abort signal handling to occur before connection attempts

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
packages/common/src/client/sync/stream/AbstractRemote.ts	Restructures WebSocket connection flow to prevent undefined stream access and enable connection abort
.changeset/bright-yaks-pump.md	Documents the bug fix for WebSocket connection timeout exceptions

Comments suppressed due to low confidence (1)

packages/common/src/client/sync/stream/AbstractRemote.ts:337

• The variable name 'disposeSocketConnectionTimeout' is misleading as it doesn't dispose a timeout but rather disposes a listener. Consider renaming to 'disposeStreamListener' or 'disposeConnectionListener' for clarity.

    let disposeSocketConnectionTimeout = () => {};