Files
BanGUI/Docs/Tasks.md
Lukas 0a350b3acc Optimize API client headers by method - only set Content-Type and CSRF header as needed
- Only set Content-Type header for requests with a body (POST, PUT, DELETE with body)
- Only set X-BanGUI-Request CSRF header for mutating methods (POST, PUT, DELETE, PATCH)
- GET, HEAD, OPTIONS requests no longer include unnecessary headers, reducing CORS preflights
- Update Web-Development.md to clarify conditional header behavior
- Add comprehensive tests for header behavior by HTTP method

This reduces unnecessary CORS preflight requests on GET endpoints while maintaining
CSRF protection on state-mutating requests.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-29 19:52:17 +02:00

113 lines
4.1 KiB
Markdown

## 35) API client sends JSON and CSRF header for every request method
- Where found:
- [frontend/src/api/client.ts](frontend/src/api/client.ts)
- Why this is needed:
- Extra headers on GET increase unnecessary CORS preflights and noise.
- Goal:
- Apply headers by method/body requirements.
- What to do:
- Only set Content-Type for requests with JSON body.
- Send CSRF header for mutating cookie-authenticated requests only.
- Possible traps and issues:
- CSRF protection assumptions must still hold for all mutating paths.
- Docs changes needed:
- Update frontend API client contract and CSRF notes.
- Doc references:
- [backend/app/middleware/csrf.py](backend/app/middleware/csrf.py)
---
## 36) Polling continues when tab is not visible
- Where found:
- [frontend/src/hooks/usePolledData.ts](frontend/src/hooks/usePolledData.ts#L90)
- [frontend/src/hooks/useBlocklistStatus.ts](frontend/src/hooks/useBlocklistStatus.ts)
- Why this is needed:
- Unnecessary backend load and client resource usage in background tabs.
- Goal:
- Pause/reduce polling when page is hidden.
- What to do:
- Add visibility-aware polling strategy and optional backoff.
- Possible traps and issues:
- Data may appear stale immediately after tab restore if refresh is delayed.
- Docs changes needed:
- Add frontend polling lifecycle policy.
- Doc references:
- [Docs/Web-Development.md](Docs/Web-Development.md)
---
## 37) Multi-worker safety check depends on one environment variable
- Where found:
- [backend/app/startup.py](backend/app/startup.py#L61)
- Why this is needed:
- Other process managers can still launch multiple workers without this variable.
- Goal:
- Enforce scheduler single-executor safety regardless of launcher.
- What to do:
- Add robust single-run lock/leader mechanism for scheduler ownership.
- Possible traps and issues:
- Locking strategy must be reliable in container orchestration.
- Docs changes needed:
- Expand deployment constraints and supported run modes.
- Doc references:
- [Docs/Architekture.md](Docs/Architekture.md)
---
## 38) History archive query paths may need explicit indexing plan
- Where found:
- [backend/app/db.py](backend/app/db.py)
- [backend/app/repositories/history_archive_repo.py](backend/app/repositories/history_archive_repo.py)
- Why this is needed:
- Large archive datasets can degrade filter/sort performance.
- Goal:
- Add indexes aligned with real query patterns.
- What to do:
- Benchmark common history queries.
- Add migration with targeted indexes.
- Possible traps and issues:
- Extra indexes increase write cost and DB size.
- Docs changes needed:
- Add DB performance/indexing section for history.
- Doc references:
- [Docs/Backend-Development.md](Docs/Backend-Development.md)
- https://www.sqlite.org/queryplanner.html
---
## 39) No explicit DI container strategy for backend service graph
- Where found:
- [backend/app/dependencies.py](backend/app/dependencies.py)
- [backend/app/services](backend/app/services)
- Why this is needed:
- Dependency construction and lifecycle are partly implicit.
- Goal:
- Define a clear dependency wiring pattern for services and repositories.
- What to do:
- Create service composition root pattern and document usage.
- Possible traps and issues:
- Over-engineering if container abstraction is too heavy for current size.
- Docs changes needed:
- Add dependency wiring chapter.
- Doc references:
- [Docs/Architekture.md](Docs/Architekture.md)
---
## 40) Frontend and backend observability are not aligned
- Where found:
- [backend/app/main.py](backend/app/main.py)
- [frontend/src](frontend/src)
- Why this is needed:
- Backend uses structured logging while frontend error telemetry is mostly local and ad-hoc.
- Goal:
- Define unified error telemetry and correlation approach.
- What to do:
- Introduce frontend error reporting pipeline and request correlation IDs.
- Possible traps and issues:
- PII/sensitive payload leakage risk in client-side telemetry.
- Docs changes needed:
- Add observability and privacy-safe logging guidelines.
- Doc references:
- [Docs/Architekture.md](Docs/Architekture.md)
- [Docs/Web-Development.md](Docs/Web-Development.md)