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Realtime connection fails with web socket exception in flutter web and mobile.

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kapilprithviraj
18 Mar, 2024, 05:26

I am using realtime connection in my flutter wb app and flutter mobile app. I face the same issue in both.

Error: WebSocketChannelException: WebSocket connection failed.

dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 327:10 createErrorWithStack dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 337:28 _throw dart-sdk/lib/core/errors.dart 120:5 throwWithStackTrace dart-sdk/lib/async/zone.dart 1386:11 callback dart-sdk/lib/async/schedule_microtask.dart 40:11 _microtaskLoop dart-sdk/lib/async/schedule_microtask.dart 49:5 _startMicrotaskLoop dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 181:7 <fn> Error: WebSocketChannelException: WebSocket connection failed.

dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 327:10 createErrorWithStack dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 337:28 _throw dart-sdk/lib/core/errors.dart 120:5 throwWithStackTrace dart-sdk/lib/async/zone.dart 1386:11 callback dart-sdk/lib/async/schedule_microtask.dart 40:11 _microtaskLoop dart-sdk/lib/async/schedule_microtask.dart 49:5 _startMicrotaskLoop dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 181:7 <fn>

TL;DR
Developers are facing WebSocketChannelException when trying to establish a realtime connection in their Flutter web and mobile apps. The WebSocket connection is failing, and the error message is being repeated in the logs. **Solution**: - Ensure that the WebSocket connection URL is correct. - Check if there are any network restrictions blocking the connection. - Verify if the WebSocket server is configured properly.
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