Reference library

Streaming & messaging

Kafka-style pub/sub, event consumers, async pipelines, and message-driven workflows.

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Streaming & messaging easy

Event Envelope with Schema Version Field in Python

Build a typed event envelope dataclass with an explicit schema version field for mock streaming scenarios.

event dataclass messaging
Python 
from dataclasses import dataclass, field
from datetime import datetime
import uuid


@dataclass
class Event:
    event_id: str = field(default_factory=lambda: str(uuid.uuid4()))
    event_type: str = "user.created"
    version: str = "1.0.0"
    created_at: str = field(default_factory=lambda: datetime.utcnow().isoform…
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