# Initial configuration ### Introduction To enable browser-based push notifications, you must integrate the OneSignal SDK into your web application. This allows Thalamus to identify unique users via a `playerId`. The integration follows a two-step process: 1. Initialize OneSignal: Use the SDK to enable push notifications on your website. 2. Associate Player ID: Sync the generated `playerId` with a Thalamus consumer (using the API methods documented previously). > For more detailed information on the provider's capabilities, refer to the [OneSignal Documentation](https://documentation.onesignal.com/docs). *** ### Client-Side Implementation (JavaScript) Add the following script to the `` section of every page where users can subscribe to notifications. #### Required Variables | **Variable** | **Type** | **Description** | | ---------------- | -------- | ------------------------------------------------------------------------------------------------------------- | | `appid` | String | Required. The OneSignal App ID provided by Thalamus. | | `urlAddPlayerId` | String | Required. The endpoint on your server that will handle the association logic (See Server-Side Documentation). | #### Integration Code (Javascript) ``` ```