feat(FR-1562): Setup Relay Subscription for Session Status #4423
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Pull Request Overview
This PR implements GraphQL subscription support using Server-Sent Events (SSE) to enable real-time session status updates, replacing the previous polling-based approach. The implementation adds the graphql-sse client for subscription handling and provides a fallback to polling for older manager versions.
Key changes:
- Integration of
graphql-sselibrary for SSE-based GraphQL subscriptions - Subscription support in Relay environment configuration
- Real-time session status updates via
schedulingEventsBySessionsubscription - Version-aware fallback mechanism for backward compatibility
Reviewed Changes
Copilot reviewed 6 out of 7 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| react/src/RelayEnvironment.ts | Added SSE subscription client configuration and integrated it into Relay network layer |
| react/src/components/BAIComputeSessionNodeNotificationItem.tsx | Replaced polling-based status updates with subscription-based approach, with fallback to legacy polling for older versions |
| react/src/components/ComputeSessionNodeItems/SessionStatusTag.tsx | Added visual indicator (CircleAlertIcon) for sessions with status_info and included new transitional statuses (SCHEDULED, PREPARED) |
| react/package.json | Added graphql-sse dependency (v2.6.0) |
| pnpm-lock.yaml | Updated lockfile with graphql-sse package |
| data/schema.graphql | Updated GraphQL schema with subscription types and related infrastructure (extensive schema changes for model deployment features) |
Files not reviewed (1)
- pnpm-lock.yaml: Language not supported
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Resolves #4405 ([FR-1562](https://lablup.atlassian.net/browse/FR-1562)) > [!IMPORTANT] > Currently, the subscription is only applied to the notification shown when a session is created. This PR adds GraphQL subscription support to enable real-time updates for various features: - Implemented GraphQL SSE client for subscription support - Added session status subscription to replace polling-based status updates - Updated session notification components to use subscriptions when available - Added fallback to polling for older manager versions The subscription implementation provides more efficient real-time updates compared to the previous polling approach, reducing unnecessary network requests while providing immediate status changes. [FR-1562]: https://lablup.atlassian.net/browse/FR-1562?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ
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Resolves #4405 (FR-1562)
Important
Currently, the subscription is only applied to the notification shown when a session is created.
This PR adds GraphQL subscription support to enable real-time updates for various features:
The subscription implementation provides more efficient real-time updates compared to the previous polling approach, reducing unnecessary network requests while providing immediate status changes.