Advanced Usage

Multiple Widget Instances

You can open multiple widget instances simultaneously, each with different configurations:

const supportWidget = await MailAgent.open({
  bottom: "20px",
  right: "20px",
  width: "350px",
  height: "500px"
});

const feedbackWidget = await MailAgent.open({
  path: "/feedback",
  bottom: "20px",
  left: "20px",
  width: "350px",
  height: "400px"
});

Dynamic User Switching

If your application supports multiple users or accounts, load the script once and pass different user IDs when opening:

// The data-user-id on the script tag is the default.
// You can override it in the init flow via postMessage if needed.

Analytics Integration

Pass a distinctId to associate widget analytics with your own user tracking:

const widget = await MailAgent.open({
  bottom: "20px",
  right: "20px",
  width: "400px",
  height: "600px",
  distinctId: currentUser.analyticsId
});

This ID is forwarded to the analytics system (PostHog) so you can correlate widget usage with your own user metrics.

Programmatic Messaging

Use widget.send() to trigger contextual conversations based on user actions in your app:

// User clicks a "Help" button next to an order
widget.send({
  text: `Help me write a follow-up email about order #${orderId}`
});

// User selects a template
widget.send({
  text: "Draft an email using the 'Meeting Request' template"
});

Lifecycle Management

The widget handle gives you control over the widget lifecycle:

const widget = await MailAgent.open({ /* ... */ });

// Check if still in DOM
console.log(widget.mounted); // true

// Close the widget
widget.unmount();

// After unmount completes
console.log(widget.mounted); // false

The unmount() method plays a fade-out animation before removing the iframe. The widget handle becomes invalid after unmounting.

Chat Persistence

The widget automatically persists chat history in the browser using localForage. Messages are stored for 24 hours and will be restored if the user reopens the widget within that window.

This means:

• Users can close and reopen the widget without losing context.

• Refreshing the page preserves the conversation.

• After 24 hours, the chat history is automatically cleared.

Feedback Page

The widget includes a built-in feedback page at the /feedback route:

const feedbackWidget = await MailAgent.open({
  path: "/feedback",
  bottom: "20px",
  right: "20px",
  width: "400px",
  height: "500px"
});

Language Detection

The widget automatically detects the user's browser language (navigator.language) and sends it with each message. The AI assistant will respond in the same language when possible. 22+ languages are supported, including:

English, Spanish, French, German, Arabic, Chinese, Japanese, Korean, Portuguese, Russian, Italian, Dutch, Polish, Turkish, Vietnamese, Thai, Indonesian, Hindi, Bengali, Swedish, Danish, and Norwegian.