1 files changed, 14 insertions, 0 deletions
diff --git a/extensions/net/lib.deno_net.unstable.d.ts b/extensions/net/lib.deno_net.unstable.d.ts
index 905a7acc1..c47558edc 100644
--- a/extensions/net/lib.deno_net.unstable.d.ts
+++ b/extensions/net/lib.deno_net.unstable.d.ts
@@ -259,4 +259,18 @@ declare namespace Deno {
    * then the underlying HttpConn resource is closed automatically.
    */
   export function serveHttp(conn: Conn): HttpConn;
+
+  export interface WebSocketUpgrade {
+    response: Response;
+    websocket: WebSocket;
+  }
+
+  export interface UpgradeWebSocketOptions {
+    protocol?: string;
+  }
+
+  export function upgradeWebSocket(
+    request: Request,
+    options?: UpgradeWebSocketOptions,
+  ): WebSocketUpgrade;
 }