Two architectures dominate the MetaTrader world: a webhook approach (logic in TradingView/Pine, alerts fired to a bridge) and an Expert Advisor approach (logic compiled inside MetaTrader). The right choice depends on where your edge lives.
Where the logic runs
- Webhook: the strategy runs on TradingView's charts; an alert fires a webhook to a bridge, which places the order.
- Expert Advisor: the strategy is coded in MQL and runs inside the terminal, reading prices locally.
Strengths of the webhook approach
- You use TradingView's charting, indicators and Strategy Tester.
- One strategy can drive MT4, MT5 and even cTrader.
- No compiling, no MetaEditor.
Strengths of the EA approach
- No dependency on an external alert path.
- Tick-level logic and complex order management are easier in code.
The hybrid most traders want
Keep the strategy in TradingView (easy to build and test) and use a lightweight execution layer on the broker side — that is where risk checks belong: spread, slippage, daily loss, news. The strategy decides when; the execution layer decides whether it is safe to send. This is the model AeronPilot uses: TradingView design comfort plus a real safety net, without maintaining a heavy EA.
How to choose
- Comfortable in Pine, want multi-broker reach → webhook.
- Need pure local tick logic → EA.
- Want both → TradingView strategy + a guarded execution bridge.
Trading involves substantial risk. AeronPilot is a technical execution tool, not financial advice.