SWT (Simple Web Tracker)

SWT (Simple Web Tracker) is a lightweight JavaScript library designed for tracking user interactions and events on web pages. It provides functionalities to log various user activities, manage sessions, and visualize data through a built-in dashboard.

Features

• Event Tracking: Tracks clicks, mouse movements, scrolls, page loads, and URL changes.
• Session Management: Automatically manages user sessions, allowing for new session creation and retrieval of session data.
• Configurable: Easily configure tracking behavior via HTML data-* attributes.
• Dashboard: A built-in dashboard for visualizing collected session data, including path flow, event distribution, and heatmaps.
• Data Export: Export collected data to CSV format from the dashboard.

Installation

To use SWT, include the dist/index.js script in your HTML. You can configure SWT using data-swt-* attributes on the script tag. ``

<script
    id="swt"
    data-swt-target-query-selector="a, img, div.wow"
    data-swt-post-url="http://your-backend-url.com/track"
    data-swt-post-buffer-time="5000"
    data-swt-token="your-auth-token"
    data-swt-open-dashboard-delay="0"
    type="module" src="https://cdn.jsdelivr.net/npm/@dooboostore/swt/dist/index.min.js"
></script>

Dynamic Script Insertion (for CDN usage)

You can also dynamically insert the SWT script from a CDN into your page. This is useful for external sites or when you prefer not to host the script directly.

const script = document.createElement('script');
script.id = 'swt';
script.type = 'module';
script.setAttribute('data-swt-target-query-selector', '#portal, #scriptHolder, #home_banner, #viewport-box');
script.src = 'https://cdn.jsdelivr.net/npm/@dooboostore/swt/dist/index.min.js';
document.head.appendChild(script);

Configuration Options

These options are set as data-swt-* attributes on the <script id="swt"> tag:

• data-swt-target-query-selector (Optional, string): A comma-separated list of CSS selectors for elements you want to specifically track clicks, visibility, and binding events on. Example: "a, img, .trackable-div".
• data-swt-post-url (Optional, string): The URL where collected log data will be sent via POST requests. If not provided, data will only be stored in sessionStorage.
• data-swt-post-buffer-time (Optional, number): The time in milliseconds to buffer collected events before sending them to the post-url. Defaults to 0 (no buffering).
• data-swt-token (Optional, string): An authentication token to be included in the Authorization header when sending data to the post-url.
• data-swt-open-dashboard-delay (Optional, number): Delay in milliseconds before the dashboard script is loaded when swt.openDashboard() is called. Defaults to 0.
• data-swt-disabled-auto-start (Optional, boolean): If present, SWT will not automatically start tracking on DOMContentLoaded. You will need to manually call window.swt.run().
• data-swt-mode (Optional, string): Set to "dashboard" when the script is loaded within the SWT dashboard window. This changes the script's behavior to run the dashboard application instead of the tracker.

Usage

Once the script is included, the swt instance will be available globally on the window object (i.e., window.swt).

Available Methods

You can interact with the swt instance directly from your browser's developer console or your JavaScript code.

• window.swt.run(): Initializes the tracker. This is automatically called on DOMContentLoaded unless data-swt-disabled-auto-start is set.
• window.swt.help(): Displays a help message in the console with available methods.
• window.swt.status(): Returns the current session status and a list of past sessions.
• window.swt.showSession(): Displays the ID of the current active session in the console.
• window.swt.newSession(options?: { id?: string, data?: object }): Creates a new session. You can optionally provide a sessionId and additional data for the session. If id is not provided, a random UUID is generated.
• window.swt.openDashboard(): Opens a new browser window displaying the SWT Dashboard, which visualizes the collected session data.

Example

// Check the current status
console.log(window.swt.status());

// Create a new session with custom data
window.swt.newSession({ data: { user: 'john.doe', campaign: 'summer_sale' } });

// Open the dashboard
window.swt.openDashboard();

Dashboard

The SWT Dashboard provides a visual interface to analyze the collected tracking data. It can be opened by calling window.swt.openDashboard() from the tracked page.

The dashboard includes:

• Path Flow: Visualizes user navigation paths between different pages.

• Time Line: Shows events over time for each session.

• Event Distribution: Displays the distribution of different event types across pages.

• Heatmap: Provides a heatmap of element interactions (clicks, visibility, etc.) on pages.

• Sankey Path Depth: Visualizes path depth changes using a Sankey diagram.

• Error Log: Tracks and displays JavaScript errors (error) and unhandled promise rejections (unhandledrejection) grouped by page.

• Session Replay: Replays user sessions visually on a canvas, showing mouse movements, clicks, scroll positions, and element states over time.

• Session Filter: Allows filtering sessions based on various criteria.

Development

For development and building the project, refer to the package.json scripts.

pnpm run bundle

pnpm run test

License

This project is licensed under the MIT License. See the LICENSE.md file for details.