> ## Documentation Index > Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt > Use this file to discover all available pages before exploring further. # setAppState ## Syntax `setAppState(xAppTemplateId, xAppTemplateData)` ## Description Updates the state of the xApp Session for the current conversation. Only works if an xApp Session was started beforehand. **Parameters:** * `xAppTemplateId`: `string` — the URL to a hosted xApp template, `generic-html`, or `null`. * If a URL is provided, the xApp template is loaded from that URL. * If `generic-html` is provided, the xApp page SDK is loaded from the host, and the HTML code defined in `xAppTemplateData.html` is displayed. * If `null` is provided, the active xApp page is closed. * `xAppTemplateData`: `Record` — the data payload for the xApp page. **Returns:** `void` ## Examples ```js theme={null} // Load an xApp Template // loads the xApp template hosted at `https://my-xapp-template-url` as an xApp page // - injects `{ my: "xapp-template-data" }` to the xApp // - waits for the xApp page to load, then displays it to the end user setAppState("https://my-xapp-template-url", { my: "xapp-template-data" }) ``` ```js theme={null} // Load generic HTML /* javascript const html = ` Hello, World! */ // loads the HTML code defined in `html` as an xApp page. // loads the xApp page SDK from its host setAppState("generic-html", { html }) ``` ```js theme={null} // Close active xApp page setAppState(null, {}) ```