Initial release v1.1.0
- Complete MVP for tracking Fidelity brokerage account performance - Transaction import from CSV with deduplication - Automatic FIFO position tracking with options support - Real-time P&L calculations with market data caching - Dashboard with timeframe filtering (30/90/180 days, 1 year, YTD, all time) - Docker-based deployment with PostgreSQL backend - React/TypeScript frontend with TailwindCSS - FastAPI backend with SQLAlchemy ORM Features: - Multi-account support - Import via CSV upload or filesystem - Open and closed position tracking - Balance history charting - Performance analytics and metrics - Top trades analysis - Responsive UI design Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Chris
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ROOT_CAUSE_FOUND.md
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# ROOT CAUSE FOUND! 🎯
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## The Diagnostic Revealed Everything
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Your diagnostic output showed the **exact problem**:
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### What We Saw
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**Registered Routes (from diagnostic):**
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```
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POST /api/accounts/
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GET /api/accounts/
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```
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Notice the **trailing slash**? (`/api/accounts/`)
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**HTTP Response (from diagnostic):**
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```
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HTTP/1.1 307 Temporary Redirect
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location: http://localhost:8000/api/accounts/
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```
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The backend was redirecting FROM `/api/accounts` TO `/api/accounts/`
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## Why This Was Happening
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### The Route Definition
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In `accounts.py`, the routes were defined as:
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```python
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@router.get("/", response_model=List[AccountResponse])
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def list_accounts(...):
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...
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```
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### How FastAPI Combines Paths
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When you register the router in `main.py`:
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```python
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app.include_router(
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accounts.router,
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prefix="/api/accounts", # <-- prefix
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tags=["accounts"]
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)
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```
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FastAPI combines them:
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```
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prefix: "/api/accounts" + route: "/" = "/api/accounts/"
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↑ trailing slash!
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```
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### What the Frontend Was Doing
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Your React frontend was calling:
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```javascript
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fetch('http://starship2:8000/api/accounts') // No trailing slash
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```
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### The Result
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1. Frontend: `GET /api/accounts` (no slash)
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2. Backend: "I only have `/api/accounts/` (with slash)"
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3. Backend: "Let me redirect you there: HTTP 307"
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4. Frontend: "I don't follow redirects automatically, request fails"
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5. UI: Spinning loading indicator forever
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## The Fix
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Changed all route decorators from:
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```python
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@router.get("/", ...) # Creates /api/accounts/
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```
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To:
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```python
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@router.get("", ...) # Creates /api/accounts
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```
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Now when combined:
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```
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prefix: "/api/accounts" + route: "" = "/api/accounts"
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↑ NO trailing slash!
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```
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Perfect match with what the frontend calls!
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## Files Fixed
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1. **backend/app/api/endpoints/accounts.py**
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- Changed `@router.post("/")` → `@router.post("")`
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- Changed `@router.get("/")` → `@router.get("")`
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2. **backend/app/api/endpoints/positions.py**
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- Changed `@router.get("/")` → `@router.get("")`
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3. **backend/app/api/endpoints/transactions.py**
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- Changed `@router.get("/")` → `@router.get("")`
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## Why Previous Fixes Didn't Work
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We spent time trying to fix:
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- Docker cache (not the issue)
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- Database connection (not the issue)
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- redirect_slashes parameter (not the issue)
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- Environment variables (not the issue)
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**The real issue was simply the trailing slash in route paths!**
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## How To Apply The Fix
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### Option 1: Quick Transfer (Recommended)
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On your Mac:
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```bash
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cd /Users/chris/Desktop/fidelity
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./transfer-final-fix.sh
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```
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Then on your server:
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```bash
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cd ~/fidelity
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./FINAL_FIX.sh
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```
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### Option 2: Manual Transfer
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```bash
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# On Mac
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cd /Users/chris/Desktop/fidelity
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scp backend/app/api/endpoints/accounts.py pi@starship2:~/fidelity/backend/app/api/endpoints/
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scp backend/app/api/endpoints/positions.py pi@starship2:~/fidelity/backend/app/api/endpoints/
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scp backend/app/api/endpoints/transactions.py pi@starship2:~/fidelity/backend/app/api/endpoints/
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scp FINAL_FIX.sh pi@starship2:~/fidelity/
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# On Server
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ssh pi@starship2
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cd ~/fidelity
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chmod +x FINAL_FIX.sh
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./FINAL_FIX.sh
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```
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## What Will Happen
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The FINAL_FIX.sh script will:
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1. Stop containers
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2. Remove backend image
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3. Rebuild backend with fixed code
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4. Start services
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5. Test automatically
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6. Show **SUCCESS!** if it works
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## Expected Result
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After the fix:
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- ✅ `GET /api/accounts` returns HTTP 200 (not 307!)
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- ✅ Response: `[]` (empty array)
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- ✅ Account creation works in UI
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- ✅ No more spinning/loading forever
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## Why The Diagnostic Was So Helpful
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The diagnostic showed:
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1. ✅ Backend had correct main.py (no redirect_slashes=False)
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2. ✅ Database connection worked perfectly
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3. ✅ Environment variables were correct
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4. ✅ Image was freshly built (2 minutes ago)
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5. ❌ But routes were registered WITH trailing slashes
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6. ❌ And HTTP test returned 307 redirect
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This pointed directly to the route path issue!
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## Lesson Learned
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FastAPI's route registration is simple but subtle:
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```python
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# These are DIFFERENT:
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@router.get("/") # With trailing slash
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@router.get("") # Without trailing slash
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# When combined with prefix "/api/accounts":
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"/api/accounts" + "/" = "/api/accounts/" # Not what we want
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"/api/accounts" + "" = "/api/accounts" # Perfect!
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```
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## Final Note
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This is a common FastAPI gotcha. The framework's `redirect_slashes=True` parameter is supposed to handle this, but when routes are registered with explicit trailing slashes, it creates the redirect behavior we saw.
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By using empty string `""` for the root route of each router, we match exactly what the frontend expects, and everything works!
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---
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**Status:** ✅ Root cause identified and fixed!
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**Next:** Transfer files and rebuild
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**Expected:** Account creation should work perfectly!
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