TradingView alerts are genuinely powerful. You can write a Pine Script strategy, backtest it, and then fire an alert the moment a condition is met. The problem is what happens after that alert fires — by default, nothing. You still have to manually place the trade.
Most people solve this in one of two ways: they pay $49+/month for a SaaS bridge, or they find a GitHub script that uses Flask, has no error handling, and breaks silently. Neither is satisfying. Here is how to build the bridge yourself in about 100 lines of Python.
The Architecture
The flow is simple:
TradingView alert → HTTP POST → FastAPI server → Alpaca order
