php bin/console make:messenger-middleware
Creates a new messenger middleware
Usage
make:messenger-middleware [<name>]Arguments
name   The name of the middleware class (e.g. <fg=yellow>CustomMiddleware</>) 
Help
The make:messenger-middleware command generates a new message class & handler.
php bin/console make:messenger-middleware EmailMessage
If the argument is missing, the command will ask for the message class interactively.
 
                        