JavaScript API

Complete reference for the Alhena Website SDK JavaScript API including all methods, configuration options, and usage examples.

The Alhena Website SDK provides a JavaScript API for embedding and controlling the chat widget on your website. This page documents all available methods and configuration options.

Installation

Add the following snippet to your website's HTML, replacing company with your company key (found in your dashboard URL after /dashboard/):

Your company key is the word after "dashboard" in your dashboard URL. For example, if your URL is https://app.alhena.ai/dashboard/acme/, your company key is acme.

<script>
document.gleenConfig = {
    company: 'your-company-key',
    apiBaseUrl: 'https://app.alhena.ai',
};
</script>
<script src="https://app.alhena.ai/sdk/gleenWidget.js"></script>

Regional API URLs

Choose the base URL for your region:

Region	Base URL
US	https://app.alhena.ai
EU	https://eu.alhena.ai

Complete Installation Example

<script>
document.gleenConfig = {
    company: 'acme',
    apiBaseUrl: 'https://app.alhena.ai'
};
</script>
<script src="https://app.alhena.ai/sdk/gleenWidget.js"></script>

You can also find your installation snippet in the Alhena dashboard under Integrations > Website > Installation.

---

Quick Reference

Methods

Method	Description
open()	Opens the chat widget
close()	Closes the chat widget
toggle()	Toggles the chat widget open/closed
sendMessage(message)	Sends a message as the user
closeTicket()	Closes the current conversation and starts a new one
getTicketId()	Returns the current ticket/conversation ID
getMessages()	Returns the chat message history
hideLauncher()	Hides the launcher button
showLauncher()	Shows the launcher button
showNudge(options)	Displays a proactive nudge message
hideNudge()	Hides any visible nudge
setStyles(styles)	Updates widget styling dynamically
setUserMetadata(key, value)	Sets a user metadata field
getFingerprint()	Returns the visitor's unique fingerprint
getFAQFingerprint()	Returns the FAQ widget fingerprint
unload()	Removes the widget from the page
setCompanyKey(key)	Changes the company key dynamically
on(event, callback)	Subscribes to widget events

Configuration Options

Option	Type	Description
company	string	Your company key (required)
apiBaseUrl	string	Regional API URL (required)
styles	object	Widget styling options
userMetadata	object	User data for personalization
locale	string	Language code for UI strings
defaultExpanded	boolean	Whether widget starts expanded
hideLauncher	boolean	Hide the launcher button on load

---

Widget Control Methods

open(options)

Opens the chat widget. If already open, has no effect.

Parameter	Type	Required	Description
options	object	No	Configuration options
options.expanded	boolean	No	Whether to open in expanded mode

window.gleenWidget.open();

// Open in expanded mode
window.gleenWidget.open({ expanded: true });

close()

Closes the chat widget. If already closed, has no effect.

window.gleenWidget.close();

toggle(options)

Toggles the chat widget between open and closed states.

Parameter	Type	Required	Description
options	object	No	Configuration options
options.expanded	boolean	No	Whether to open in expanded mode (when toggling open)

window.gleenWidget.toggle();

// Toggle with expanded mode preference
window.gleenWidget.toggle({ expanded: true });

sendMessage(message, options)

Opens the widget and sends a message from the user's perspective. Useful for triggering conversations based on user actions.

window.gleenWidget.sendMessage('I need help with my order');

Use case: Trigger a support conversation when a user clicks a "Help" button:

document.getElementById('help-button').addEventListener('click', function() {
    window.gleenWidget.sendMessage('I need assistance');
});

---

Conversation Management

closeTicket()

Closes the current conversation/ticket and prepares the widget for a new conversation. The user will see the bot's welcome message again.

window.gleenWidget.closeTicket();

Use case: Reset the conversation after a support interaction is complete:

window.gleenWidget.on('ticket:agent_handoff', function() {
    setTimeout(function() {
        window.gleenWidget.closeTicket();
        window.gleenWidget.close();
    }, 60000); // Close after 1 minute
});

getTicketId()

Returns the unique identifier for the current conversation/ticket.

Returns: string | null - The ticket ID, or null if no active ticket.

const ticketId = window.gleenWidget.getTicketId();
console.log('Current ticket:', ticketId);

getMessages()

Returns the message history for the current conversation.

Returns: Array - Array of message objects.

const messages = window.gleenWidget.getMessages();
messages.forEach(function(msg) {
    console.log(msg.role + ': ' + msg.content);
});

---

Launcher Control

hideLauncher()

Hides the floating launcher button. The widget can still be opened programmatically.

window.gleenWidget.hideLauncher();

showLauncher()

Shows the floating launcher button after it has been hidden.

window.gleenWidget.showLauncher();

Use case: Show the launcher only on certain pages:

if (window.location.pathname.includes('/support')) {
    window.gleenWidget.showLauncher();
} else {
    window.gleenWidget.hideLauncher();
}

---

Nudge Messages

Nudges are proactive messages that appear near the launcher to encourage users to start a conversation.

showNudge(options)

Displays a nudge message to the user.

Parameter	Type	Required	Description
options.message	string	Yes	The nudge message text
options.delay	number	No	Delay in milliseconds before showing

window.gleenWidget.showNudge({
    message: 'Need help finding the right product?',
    delay: 5000 // Show after 5 seconds
});

hideNudge()

Hides any currently visible nudge message.

window.gleenWidget.hideNudge();

---

Styling

setStyles(styles)

Dynamically updates the widget's visual appearance. See Styles API for all available options.

window.gleenWidget.setStyles({
    widget_position: 'LEFT',
    bottom_spacing: 20,
    right_spacing: 20,
    widget_border_radius: 16
});

---

User Data

setUserMetadata(key, value)

Sets a single user metadata field for personalization. Call multiple times to set multiple fields. See Custom Data for details.

Parameter	Type	Required	Description
key	string	Yes	The metadata key to set
value	any	Yes	The value to associate with the key

window.gleenWidget.setUserMetadata('email', '[e-mail]');
window.gleenWidget.setUserMetadata('name', 'John Doe');
window.gleenWidget.setUserMetadata('plan', 'premium');

Keys starting with _ (underscore) are private and not exposed to the AI. Use these for sensitive data like API tokens.

---

Analytics & Tracking

getFingerprint()

Returns the visitor's unique fingerprint identifier, used for analytics and session tracking.

Returns: string - UUID fingerprint.

const fingerprint = window.gleenWidget.getFingerprint();

getFAQFingerprint()

Returns the FAQ widget's fingerprint identifier.

Returns: string - UUID fingerprint.

const faqFingerprint = window.gleenWidget.getFAQFingerprint();

---

Widget Lifecycle

unload()

Completely removes the widget from the page. Useful for single-page applications when navigating away from pages where the widget should appear.

window.gleenWidget.unload();

setCompanyKey(key)

Changes the company key dynamically. This reloads the widget with the new company's configuration.

Parameter	Type	Required	Description
key	string	Yes	The new company key

window.gleenWidget.setCompanyKey('different-company');

---

Event Subscription

on(eventName, callback)

Subscribes to widget events. See Events for a complete list of available events.

Parameter	Type	Required	Description
eventName	string	Yes	The event name to listen for
callback	function	Yes	Function called when event fires

window.gleenWidget.on('widget:opened', function() {
    console.log('Widget was opened');
});

window.gleenWidget.on('ticket:message_submitted', function(data) {
    console.log('User sent:', data.text);
});

---

Configuration Options

Configure the widget by setting document.gleenConfig before loading the SDK script.

Basic Configuration

document.gleenConfig = {
    company: 'your-company-key',
    apiBaseUrl: 'https://app.alhena.ai'
};

Full Configuration Example

document.gleenConfig = {
    company: 'your-company-key',
    apiBaseUrl: 'https://app.alhena.ai',

    // Styling
    styles: {
        widget_position: 'RIGHT',
        bottom_spacing: 20,
        right_spacing: 20,
        widget_border_radius: 16,
        fontFamily: 'Inter, sans-serif'
    },

    // User data
    userMetadata: {
        email: '[e-mail]',
        name: 'John Doe',
        _api_token: 'secret-token' // Private, not sent to AI
    },

    // Localization
    locale: 'es', // Spanish

    // Behavior
    defaultExpanded: false,
    hideLauncher: false,
    ticket_mode: 'NORMAL' // or 'BOT_ONLY'
};

Configuration Options Reference

Option	Type	Default	Description
company	string	-	Your company key (required)
apiBaseUrl	string	-	Regional API URL (required)
styles	object	{}	Widget styling options
userMetadata	object	{}	User data for personalization
locale	string	auto	Language code (e.g., 'en', 'es', 'fr')
defaultExpanded	boolean	false	Open widget on page load
hideLauncher	boolean	false	Hide the launcher button
showExpandButton	boolean	true	Show button to expand widget
ticket_mode	string	'NORMAL'	'NORMAL' or 'BOT_ONLY'

---

Complete Example

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Alhena Chat Widget Example</title>
</head>
<body>

<h1>Welcome to Our Store</h1>
<button id="help-btn">Get Help</button>
<button id="close-btn">Close Chat</button>

<!-- Alhena SDK Configuration -->
<script>
document.gleenConfig = {
    company: 'your-company-key',
    apiBaseUrl: 'https://app.alhena.ai',
    styles: {
        widget_position: 'RIGHT',
        bottom_spacing: 20
    }
};
</script>
<script src="https://app.alhena.ai/sdk/gleenWidget.js"></script>

<!-- Widget Control -->
<script>
// Button handlers
document.getElementById('help-btn').addEventListener('click', function() {
    window.gleenWidget.open();
});

document.getElementById('close-btn').addEventListener('click', function() {
    window.gleenWidget.close();
});

// Event listeners
window.gleenWidget.on('widget:loaded', function() {
    console.log('Chat widget ready');
});

window.gleenWidget.on('widget:opened', function() {
    console.log('Chat opened');
});

window.gleenWidget.on('ticket:agent_handoff', function() {
    console.log('Transferred to human agent');
});
</script>

</body>
</html>

---

Related Resources

• Events Reference - Complete list of widget events

• Styles API - Customizing widget appearance

• Custom Data - Passing user data to the widget

• Examples - Code examples for common use cases