the-other-dude/.planning/phases/06-history-api/06-01-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
06-history-api	01	api	fastapi sqlalchemy pagination timeline rbac	phase provides 05-diff-engine router_config_changes and router_config_diffs tables with parsed change data	GET /api/tenants/{tid}/devices/{did}/config-history endpoint get_config_history service function with pagination	06-02 frontend-config-history	added patterns raw SQL text() joins for timeline queries same RBAC pattern as config_backups	created modified backend/app/services/config_history_service.py backend/app/routers/config_history.py backend/tests/test_config_history_service.py backend/app/main.py	Raw SQL text() for JOIN query consistent with config_diff_service.py pattern Pagination defaults: limit=50, offset=0 with validation (ge=1, le=200 for limit)	Config history queries use JOIN between changes and diffs tables for timeline view	API-01 API-04	2min	2026-03-13

Phase 6 Plan 1: Config History Timeline Summary

GET /config-history endpoint returning paginated change timeline with component, summary, timestamp, and diff metadata via JOIN query

Performance

• Duration: 2 min
• Started: 2026-03-13T03:58:03Z
• Completed: 2026-03-13T04:00:00Z
• Tasks: 2
• Files modified: 4

Accomplishments

• Config history service querying router_config_changes JOIN router_config_diffs for timeline entries
• REST endpoint with viewer+ RBAC and config:read scope enforcement
• 4 unit tests covering formatting, empty results, pagination, and ordering
• Router registered in main.py alongside existing config routers

Task Commits

Each task was committed atomically:

1. Task 1: Config history service and tests (TDD) - f7d5aec (feat)
2. Task 2: Config history router and main.py registration - 5c56344 (feat)

Files Created/Modified

• backend/app/services/config_history_service.py - Query function for paginated config change timeline
• backend/app/routers/config_history.py - REST endpoint with RBAC, pagination query params
• backend/tests/test_config_history_service.py - 4 unit tests with AsyncMock sessions
• backend/app/main.py - Router import and registration

Decisions Made

• Used raw SQL text() for the JOIN query, consistent with config_diff_service.py pattern
• Pagination limit constrained to 1-200 via FastAPI Query validation
• Copied _check_tenant_access helper (same pattern as config_backups.py)

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Config history timeline endpoint ready for frontend consumption
• Plan 06-02 can build on this for detailed diff view endpoints

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Phase: 06-history-api Completed: 2026-03-13