Method dispatch_request

src/flask/views.py:182–191

(self, **kwargs: t.Any)

                cls.methods = methods

    def dispatch_request(self, **kwargs: t.Any) -> ft.ResponseReturnValue:
        meth = getattr(self, request.method.lower(), None)

        # If the request method is HEAD and we don't have a handler for it
        # retry with GET.
        if meth is None and request.method == "HEAD":
            meth = getattr(self, "get", None)

        assert meth is not None, f"Unimplemented method {request.method!r}"
        return current_app.ensure_sync(meth)(**kwargs)  # type: ignore[no-any-return]