Merge pull request #3323 from plotly/wsgi-call

Make dash wsgi compliant

Author: T4rk1n

CHANGELOG.md

@@ -23,6 +23,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 - [#3303](https://github.com/plotly/dash/pull/3303) Improve flatten_grouping performance (callback with dictionary output/input)
 - [#3304](https://github.com/plotly/dash/pull/3304) Speed up function _operation by 80%
+- [#3323](https://github.com/plotly/dash/pull/3323) Make Dash instances WSGI compliant, can now call gunicorn on the dash app itself.
 
 ## [3.0.4] - 2025-04-24
 

dash/dash.py

@@ -2395,3 +2395,11 @@ def update(pathname_, search_, **states):
                 Output(_ID_DUMMY, "children"),
                 Input(_ID_STORE, "data"),
             )
+
+    def __call__(self, environ, start_response):
+        """
+        This method makes instances of Dash WSGI-compliant callables.
+        It delegates the actual WSGI handling to the internal Flask app's
+        __call__ method.
+        """
+        return self.server(environ, start_response)