Dash Version 4.1.0rc0

Added

• Add support for multiple backend implementation beside flask such as fastapi and quart (both included).
  • Add app = Dash(backend="flask" | "fastapi" | "quart" | CustomBackendImpl) parameter to automatically setup
  • An existing Fastapi, Quart or Flask instance can also be given as app = Dash(server=Fastapi()) to automatically setup a dash app on the server.
  • Install fastapi dependencies with pip install dash[fastapi] or quart with pip install dash[quart], flask is still included by default.
  • Custom backend implementation can be added as a subclass of dash.backends.base_server.BaseDashServer and response/request adapters.