Unit03

class MyAggregate:
    @classmethod
    def create(cls, ...) -> "MyAggregate":
        """For making a new aggregate. Should issue a "...Created" event."""
        ...

    def do_stuff(self) -> None:
        """Command handler - for executing actions on the aggregate."""
        ...

Unit03

class MyRepository:
    def get(self, id_) -> MyAggregate:
        """Replay an aggregate from the event log."""
        ...

    def persist(self, aggregate: MyAggregate) -> None:
        self._insert_new_events(aggregate.pop_pending_events())

Unit03

class MyEvent:
    def __init__(self, foo: int):
        """For issuing new events in the application."""
        self.foo = foo

    @classmethod
    def unserialize(cls, payload: dict) -> "MyEvent":
        """To use when fetching an existing event from the event log."""
        return cls(foo=payload["foo"])

Unit03

Keybase proof

I hereby claim:

• I am unit03 on github.
• I am unit03 (https://keybase.io/unit03) on keybase.
• I have a public key whose fingerprint is A1D5 47C8 D361 C989 F11B 4784 BE05 D4A8 80DA 7936

To claim this, I am signing this object:

Unit03

[
    {
        "abstract": null,
        "authors": [
            "Marek Glijer"
        ],
        "conf_key": null,
        "conf_url": "http://pl.pycon.org/2013/",
        "contact": null,
        "description": "Spos\u00f3b propagacji plik\u00f3w konfiguracyjnych na nieograniczonej liczbie maszyn (stworzenie za pomoc\u0105 Pythona mechanizmu dzia\u0142aj\u0105cego w architekturze rozproszonej i bez single-point-of-failure). Prezentacja od zamys\u0142u, przez proces tworzenia do przyk\u0142ad\u00f3w u\u017cycia w \u015brodowisku produkcyjnym.",

Unit03

[
    {
        "abstract": null,
        "authors": [
            "Rodolfo Carvalho"
        ],
        "conf_key": null,
        "conf_url": "http://pl.pycon.org/2014/",
        "contact": null,
        "description": "So you need to expose data and functionality to mobile clients and a modern Javascript web applications? Deliver it fast and maintain it with ease by leveraging the power of Django REST Framework. In this talk I\u2019ll guide you through building a Web API using Python, Django and DRF.",