TradingView webhook to MT5: how an alert becomes a live order

A TradingView webhook is just an HTTP POST when an alert fires. The platform does not know MT5 exists. Your job is to put a machine-readable message in the alert, receive it on a URL you control, and let a local EA trade.

The message TradingView should send

Replace TradingView's default text. Strategy alerts should use {{strategy.order.action}} so both entries and exits work. PineConnector also accepts fills like order buy @ price filled on EURUSD.

{
  "symbol": "{{ticker}}",
  "action": "{{strategy.order.action}}",
  "qty": 0.1,
  "sl": 50,
  "tp": 100,
  "strategy_id": "{{strategy.order.id}}"
}

action accepts buy, sell, close, closelong, closeshort, and the limit variants. sl / tp are distances in pips. Use sl_price / tp_price when you already have absolute prices. Optional mt5_login routes the signal to a specific terminal.

What happens after the POST

1. The URL authenticates with your webhook secret. A wrong secret returns 401 and does not write a trade row.
2. Expired plans and daily quotas reject with a clear error in the log.
3. The payload is normalized, de-duplicated for 60 seconds, and mapped to an MT5 symbol.
4. The signal is queued. The EA polls, marks it sent, places CTrade, then acknowledges ticket, price, and profit.

Common failures (and the log line to expect)

• Missing action — price-crossing alerts need JSON with action, not just a title.
• No connected MT5 account — the EA is detached, the license key is wrong, or the terminal is offline.
• No MT5 mapping — Market Watch does not contain a match for that ticker. Confirm it on Symbol mapping.
• Kill switch — new entries are blocked on purpose until you turn it off under MT5 accounts.

Identical payloads within 60 seconds are treated as duplicates so a flapping alert does not double-fill. Change qty, action, or strategy_id if you truly need a second order.

Crypto destinations accept buy, sell, close, closelong, and closeshort as market orders. Limit-style actions are not sent to Delta Exchange or CoinDCX. See the setup guide for the alert box, or create an account to get a webhook URL.