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The unread count component The unread count component displays a count of all the unread messages for a given user. It will typically be embedded in your main menu or sidebar to call attention to any unread messages to which the user should respond. The component will hide itself if there are no unread messages and display the count whenever unread messages are received. This allows you to always have the iframe displayed on your page.

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Installation

The simplest version of the unread count component can be embedded like this: 
<iframe
  src="https://embed.surge.app/unread_count?user_id={SURGE_USER_ID}&token={ACCOUNT_TOKEN}&conversation_id={CONVERSATION_ID}"
></iframe>
Both {SURGE_USER_ID} and {ACCOUNT_TOKEN} are required parameters. You can find them in the Surge dashboard. We will also be providing more robust auth options in the near future. The {CONVERSATION_ID} parameter is optional. If provided, the unread count will only display unread messages for that specific conversation. If not provided, the unread count will display unread messages across all conversations to which the user has access.

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Styling

With this component, we recommend styling the iframe to allow for automatic expansion. We recommend giving the link container relative positioning so that the iframe can have absolute positioning to allow it to be positioned in the bottom right corner of the link. This allows the button icon to remain centered within the container while the unread count floats over the top of it. Using Tailwind CSS, that can be accomplished like this: 
<a
  href="/messages"
  className="flex relative h-9 w-9 items-center justify-center rounded-lg bg-accent text-accent-foreground transition-colors hover:text-foreground md:h-8 md:w-8"
>
  <!-- Lucide message-circle icon -->
  <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="h-5 w-5">
    <path d="M7.9 20A9 9 0 1 0 4 16.1L2 22Z"></path>
  </svg>
  <span className="sr-only">Messages</span>

  <iframe
    className="-ml-1/2 pointer-events-none absolute left-2 mt-4 inline-flex h-6 min-w-6 max-w-10 scale-75"
    src="https://embed.surge.app/unread_count?user_id={SURGE_USER_ID}&token={ACCOUNT_TOKEN}"
  ></iframe>
</a>

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Events

The Unread Count component emits events that you can listen to in your application. Here are the events that you can listen to:

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Count Updated

Whenever the user reads an unread conversation or receives a new message, this event will be emitted with the updated unread count: 
{
  "source": "surge-unread-count",
  "type": "count-updated",
  "count": 3
}