Run Custom Code

The Run Custom Code command (Command Type: 10) executes arbitrary JavaScript code directly in the browser’s page context. The return value of the script becomes the command result.

Command Type

Command Type ID: 10

Parameters

Parameter	Type	Description	Required
code	string	The JavaScript code to execute	Yes
timeout	number	Timeout in milliseconds	Yes

Usage Examples

Extract Data from Page

{
  "command": "run-custom-code",
  "params": {
    "code": "return window.__INITIAL_STATE__.events.map(e => ({ id: e.id, name: e.name }));",
    "timeout": 10000
  }
}

Scroll to Bottom of Page

{
  "command": "run-custom-code",
  "params": {
    "code": "window.scrollTo(0, document.body.scrollHeight); return true;",
    "timeout": 5000
  }
}

Trigger Custom Logic

{
  "command": "run-custom-code",
  "params": {
    "code": "const el = document.querySelector('.load-more'); if (el) el.click(); return !!el;",
    "timeout": 8000
  }
}

Common Use Cases

Custom Extraction: Extract deeply nested or dynamically computed data from window
DOM Manipulation: Trigger interactions that require custom JS
Scraping Utilities: Run helper scripts for pagination, scrolling, or data normalization

Get Window Data - Structured window property access
Click by Javascript - JS click without custom code

Get Inner Texts Subscribe WebSocket Event

Quick Start

Commands Glossary

Command Type

Parameters

Usage Examples

Extract Data from Page

Scroll to Bottom of Page

Trigger Custom Logic

Common Use Cases

​Command Type

​Parameters

​Usage Examples

​Extract Data from Page

​Scroll to Bottom of Page

​Trigger Custom Logic

​Common Use Cases

​Related Commands

Command Type

Parameters

Usage Examples

Extract Data from Page

Scroll to Bottom of Page

Trigger Custom Logic

Common Use Cases

Related Commands