Creating Commands

Introduction
It's extremely simple to add commands to Masonite via the craft command tool and Service Providers. If you have been using Masonite for any amount of time you will learn that commands are a huge part of developing web applications with Masonite. We have made it extremely easy to create these commands and add them to craft to build really fast personal commands that you might use often.
Masonite uses the Cleo package for creating and consuming commands so for more extensive documentation on how to utilize commands themselves, how to get arguments and options, and how to print colorful text to the command line.
Read more about Cleo by visiting the Cleo Documentation.
Getting Started
You can create commands by using craft itself:
terminal
$ craft command Hello
This will create a app/commands/HelloCommand.py file with boilerplate code that looks like this:
app/commands/HelloCommand.py
""" A HelloCommand Command """
from cleo import Command
​
​
class HelloCommand(Command):
    """
    Description of command
​
    command:name
        {argument : description}
    """
​
    def handle(self):
        pass
Let's create a simple hello name application which prints "hello your-name" to the console.
Where it says command:name inside the docstring we can put hello and inside the argument we can put name like so:
app/commands/HelloCommand.py
""" A HelloCommand Command """
from cleo import Command
​
​
class HelloCommand(Command):
    """
    Say hello to you
​
    hello
        {name : Your name}
    """
​
    def handle(self):
        pass
Inside the handle method we can get the argument passed by specifying self.argument('name'). Simply put:
app/commands/HelloCommand.py
""" A HelloCommand Command """
from cleo import Command
​
​
class HelloCommand(Command):
    """
    Say hello to you
​
    hello
        {name : Your name}
    """
​
    def handle(self):
        print('Hello {0}'.format(self.argument('name')))
That's it! Now we just have to add it to our craft command.
Adding Our Command To Craft
We can add commands to craft by creating a Service Provider and registering our command into the container. Craft will automatically run all the register methods on all containers and retrieve all the commands.
Let's create a Service Provider:
terminal
$ craft provider HelloProvider
This will create a provider in app/providers/HelloProvider.py that looks like:
app/providers/HelloProvider.py
''' A HelloProvider Service Provider '''
from masonite.provider import ServiceProvider
​
​
class HelloProvider(ServiceProvider):
​
    def register(self):
        pass
​
    def boot(self):
        pass
Let's import our command and register it into the container. Also because we are only registering things into the container, we can set wsgi = False so it is not ran on every request and only before the server starts:
app/providers/HelloProvider.py
''' A HelloProvider Service Provider '''
from masonite.provider import ServiceProvider
from app.commands.HelloCommand import HelloCommand
​
class HelloProvider(ServiceProvider):
​
    wsgi = False
​
    def register(self):
        self.app.bind('HelloCommand', HelloCommand())
​
    def boot(self):
        pass
Make sure you instantiate the command. Also the command name needs to end in "Command". So binding HelloCommand will work but binding Hello will not. Craft will only pick up commands that end in Command. This is also case sensitive so make sure Command is capitalized.
Adding The Service Provider
Like normal, we need to add our Service Provider to the PROVIDERS list inside our config/providers.py file:
config/providers.py
from app.providers.HelloProvider import HelloProvider
​
PROVIDERS = [
...
    # Application Providers
    UserModelProvider,
    MiddlewareProvider,
​
    # New Hello Provider
    HelloProvider,
]
That's it! Now if we run:
terminal
$ craft
We will see our new hello command:
terminal
  help              Displays help for a command
  hello             Say hello to you
  install           Installs all of Masonite's dependencies
and if we run:
terminal
$ craft hello Joseph
We will see an output of:
terminal
Hello Joseph
Last modified 4yr ago