# Multi-Tenant Implementation and Testing Log

**Date:** 2025-12-04
**Mode:** beastmode

## Summary

Successfully implemented and tested full multi-tenant support for LightRAG WebUI. Both multi-tenant and single-tenant modes are now fully functional.

## Actions Performed

1. **Fixed Vite proxy configuration** (`lightrag_webui/vite.config.ts`)
   - Changed from conditional `import.meta.env` (doesn't work in config) to proper `loadEnv`
   - Added comprehensive proxy rules for all API endpoints: `/api/v1/`, `/api/`, `/documents/`, `/query/`, `/graph/`, `/retrieval/`, `/health/`, `/auth-status/`, `/docs`, `/redoc`, `/openapi.json`
   - Used `127.0.0.1` instead of `localhost` to avoid IPv6 resolution issues
   - Removed circular dependency by inlining `webuiPrefix` constant

2. **Tested Multi-Tenant Mode**
   - Verified `/api/v1/tenants` endpoint returns tenant list (acme-corp, techstart)
   - Verified `/api/v1/knowledge-bases` endpoint returns KBs per tenant
   - Login page shows tenant dropdown with all available tenants
   - Tenant selection loads associated knowledge bases
   - KB dropdown allows switching between KBs within tenant
   - Switch Tenant modal shows tenant cards with stats (KBs, Docs, GB)
   - Tenant switching properly resets context and loads new KBs
   - Document upload works with proper tenant/KB context
   - Query/Retrieval tab sends requests with tenant/KB headers
   - Knowledge Graph tab loads with graph controls

3. **Tested Single-Tenant Mode**
   - Set `LIGHTRAG_MULTI_TENANT=false` in `.env`
   - WebUI auto-redirects to dashboard without tenant selection
   - Default tenant/KB ("default") used automatically
   - All tabs functional (Documents, Knowledge Graph, Retrieval, API)
   - No tenant selector shown in header

## Key Decisions

- Used `127.0.0.1` instead of `localhost` in Vite proxy to ensure consistent IPv4 connections
- Inlined `webuiPrefix` constant in vite.config.ts to avoid circular import with path alias
- Started Vite with `node ./node_modules/vite/bin/vite.js < /dev/null &` to prevent TTY suspension issues

## Files Modified

- `lightrag_webui/vite.config.ts` - Fixed proxy configuration and removed problematic import

## Test Results

| Test | Status |
|------|--------|
| Vite proxy for /api/v1/ routes | ✅ Pass |
| Tenant list API | ✅ Pass |
| Knowledge bases API | ✅ Pass |
| Login page tenant dropdown | ✅ Pass |
| Tenant selection and KB loading | ✅ Pass |
| Tenant switching | ✅ Pass |
| KB switching within tenant | ✅ Pass |
| Document upload with tenant context | ✅ Pass |
| Query/Retrieval with tenant context | ✅ Pass |
| Knowledge Graph tab | ✅ Pass |
| Single-tenant mode auto-redirect | ✅ Pass |
| Single-tenant mode default KB | ✅ Pass |

## Known Issues / Minor Items

1. SwaggerUI static files not found at `/static/swagger-ui/` - not critical, only affects `/docs` page
2. Some "KB context required but missing" errors during tenant switching - timing issue, doesn't affect functionality

## Next Steps

- Consider adding loading spinner during tenant/KB switch to avoid timing issues
- Add SwaggerUI static files to Vite proxy or configure fallback

## Environment

- Branch: `premerge/integration-upstream`
- API Port: 9621
- WebUI Port: 5173
- PostgreSQL: 15432
- Redis: 16379