Summary
• **EditChannel.js**
– Displays “Fetch Model List” button for both *create* and *edit* modes (removed `isEdit` guard).
– Unified model selector placeholder to “Please choose supported models”.
– Added null-safety checks when parsing Axios responses.
– Sends requests with `{ skipErrorHandler: true }`, preventing generic *500 Internal Server Error* toasts and relying on context-specific messages instead.
• **helpers/api.js**
– Introduced `skipErrorHandler` flag in the Axios response interceptor.
If present, global `showError` is bypassed, giving callers full control over user-facing notifications.
– Ensures `Promise.reject(error)` is returned for proper error propagation.
Why
Channel creators now enjoy the same convenience as editors when importing upstream model lists.
Meanwhile, suppressing redundant toasts removes confusion caused by simultaneous custom and generic error messages.
Previously, the Playground UI allowed users to pick a group, but the request body sent to `/pg/chat/completions` did not include this information, so the backend always fell back to the user’s default group.
Changes introduced
• web/src/helpers/api.js – added `group: inputs.group` to the `payload` built in `buildApiPayload`.
Outcome
• Selected group is now transmitted to the backend, enabling proper channel routing and pricing logic based on group ratios.
• Resolves the issue where group selection appeared ineffective in the Playground.
Add request deduplication mechanism to prevent duplicate GET requests
to the same endpoint within the same timeframe, significantly reducing
unnecessary network overhead.
**Changes:**
- Add `patchAPIInstance()` function to intercept and deduplicate GET requests
- Implement in-flight request tracking using Map with URL+params as unique keys
- Apply deduplication patch to both initial API instance and `updateAPI()` recreated instances
- Add `disableDuplicate: true` config option to bypass deduplication when needed
**Benefits:**
- Eliminates redundant API calls caused by component re-renders or rapid user interactions
- Reduces server load and improves application performance
- Provides automatic protection against accidental duplicate requests
- Maintains backward compatibility with existing code
**Technical Details:**
- Uses Promise sharing for identical concurrent requests
- Automatically cleans up completed requests from tracking map
- Preserves original axios functionality with minimal overhead
- Zero breaking changes to existing API usage
Addresses the issue observed in EditChannel.js where multiple calls
were made to the same endpoints during component lifecycle.
Fix ReferenceError caused by undefined `isValidMessage` and `MESSAGE_ROLES`
in the buildApiPayload function within api.js.
Changes:
- Add missing `isValidMessage` import from utils.js
- Add missing `MESSAGE_ROLES` import from playground constants
- Consolidate duplicate `formatMessageForAPI` import
- Clean up import statements organization
Resolves: ReferenceError: isValidMessage is not defined at buildApiPayload (api.js:39:13)
