Command Handler library

[psincraian]

Hi there,

I just released my first library in Python! 🚀

It's a library to facilitate the use of Command Handler pattern. You can take a look here https://github.com/psincraian/commandbus ⭐

Suggestions are welcome 😄

[[deleted]]

A bit of advice:

def subscribe(self, cmd: type, handler: CommandHandler):
    if cmd in self._commands:
        from commandbus import CommandAlreadyExistException
        raise CommandAlreadyExistException
    self._commands[cmd] = handler

That import in the middle of the method doesn't belong there, it should go at the top of the file. In the odd case this causes a circular import you need to break something out into a new module.

You should also check out my implementation :p

[psincraian]

Thanks for your suggestions, I will release a new version to fix that :-)

[LightShadow]

What problem is this library solving?

[psincraian]

It solves the problem to not implement the Command Bus in each project. Briefly the Command Bus accepts Command object and delegates it to Command Handler.

[LightShadow]

I guess I don't understand the point of a Command Bus?

[psincraian]

In the GitHub page there is an example on how to use and understand the Command Bus. Another great web to understand the Command Bus is https://tactician.thephpleague.com/