Code Reaction

A Code Reaction lets you write custom JavaScript code that runs whenever a Data Webhook receives a request.

It works like a Code Strategy, but instead of running on market ticks or on a schedule, it executes event‑driven — triggered by incoming webhook data. The webhook’s request data is injected into your code so you can react to it, trigger trading actions, store state, and perform HTTP requests.

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🧩 Request Data Object

For each webhook request, Towerflow makes the incoming request available inside your reaction as a Request object:

Field	Description
$.Request.ip	Sender’s IP address (if available)
$.Request.headers	All incoming HTTP headers
$.Request.data	Full payload as a string

You can parse $.Request.data into JSON if needed:

const payload = JSON.parse($.Request.data);

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Code Reactions share the same execution environment and capabilities as Code Strategies, extended with the $.Request object.

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🧠 Example Code Reaction

Here’s a sample that reacts to incoming webhook data and triggers trades:

// Parse the incoming payload
const payload = JSON.parse($.Request.data);

// Load persistent state
const state = await $.Storage.get() || { triggers: 0 };
state.triggers++;

// Logic based on external signal
if (payload.signal === "BUY" && payload.confidence > 0.8) {
    await $.Strategy.action($.Action.LONG);
} else if (payload.signal === "SELL") {
    await $.Strategy.action($.Action.EXIT);
}

// Save state
await $.Storage.set(state);

This shows:

• Parsing $.Request.data

• Using persistent storage

• Applying custom logic

• Triggering trading actions

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🔍 Typical Use Cases

Code Reactions are ideal for:

• Validating and normalizing external webhook data

• Filtering incoming signals before acting

• Coordinating multiple webhook sources

• Building safety layers for automated bots

• Custom preprocessing for downstream logic

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🚫 Limitations

• No chart or image input

• No AI reasoning

• One execution per webhook event

• Deterministic output only

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🔗 Related Features

• Data Webhook – Receive event data

• LLM Reaction – AI‑powered reaction logic

• Simple Code Strategy – Scheduled market logic

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🧠 Summary

Code Reactions extend the flexibility of Code Strategies into the event‑driven world. They let you run custom JavaScript logic whenever external systems send data — enabling highly customizable automated workflows with full control over data, state, and trade actions.