Creating Commands
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.
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.
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.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