1 files changed, 6 insertions, 0 deletions
diff --git a/source/utility/types.ts b/source/utility/types.ts
index 0d8b443..2311c25 100755
--- a/source/utility/types.ts
+++ b/source/utility/types.ts
@@ -41,6 +41,12 @@ export interface GQLOptions<Context, Req extends GQLRequest = GQLRequest> extend
   playgroundOptions?: Omit<RenderPageOptions, "endpoint">;
   /** The executable schema to query against. */
   schema: GraphQLSchema;
+  /**
+   * WebSocket subscription handler returned by `GraphQLWS()`. When set, any
+   * incoming request with `Upgrade: websocket` is delegated to it before HTTP
+   * content negotiation runs.
+   */
+  subscriptions?: (request: Request) => Response;
 }
 
 /** A single GraphQL operation — either a `query` or a `mutation`, never both. */