Pine Script Part 5: Alerts, Webhooks, and Full Automatic Trading

This chapter covers the most powerful part of the TradingView ecosystem: full automation.

By the end of this chapter, your strategy will:

• Generate signals
• Trigger alerts
• Send JSON via webhook
• And a bot will execute orders on an exchange

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1. TradingView Alert System

Alerts are the backbone of automation. Once a strategy generates a signal, an alert sends it to your bot.

Alarm screen:
https://sancoqhub.com/go/tradingview

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2. Alert Types

• Once per bar
• Once per bar close (recommended)
• Crossing
• Greater / Less than

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3. Sending Alerts from Pine Script

if longSignal
    alert("LONG", alert.freq_once_per_bar_close)

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4. Webhooks Explained

A webhook allows TradingView to send real-time JSON messages to a bot.

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5. Webhook JSON Example

{
  "signal": "LONG",
  "symbol": "BTCUSDT",
  "price": "{{close}}",
  "time": "{{timenow}}"
}

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6. alert() with JSON

msg = '{"signal": "LONG", "price": ' + str.tostring(close) + '}'
alert(msg, alert.freq_once_per_bar_close)

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7. Full Automation Workflow

1. Strategy → signal
2. Alert → trigger
3. Webhook → JSON
4. Bot → executes API order
5. Exchange → fills trade

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8. Full Example Strategy with Webhook

//@version=5
strategy("Automatic EMA Bot", overlay=true)

fast = ta.ema(close, 20)
slow = ta.ema(close, 50)

longSignal = ta.crossover(fast, slow)
shortSignal = ta.crossunder(fast, slow)

if longSignal
    strategy.entry("Long", strategy.long)
    alert('{"type":"LONG","price":' + str.tostring(close) + '}', alert.freq_once_per_bar_close)

if shortSignal
    strategy.entry("Short", strategy.short)
    alert('{"type":"SHORT","price":' + str.tostring(close) + '}', alert.freq_once_per_bar_close)

plot(fast)
plot(slow)

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9. Creating Alerts

1. Add strategy
2. Click “Alert”
3. Choose condition
4. Enter webhook URL
5. Add JSON message
6. Click Create

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10. API Security

• Enable only "trade"
• Disable withdrawals
• Use IP restrictions
• Run bot on secure server

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11. Premium Benefits

https://sancoqhub.com/go/tradingview

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12. Conclusion

You now understand real automation.
Next chapter: Advanced Techniques & Multi-Timeframe Trading.