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Streaming & messaging

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

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How to Mock NATS Subject Hierarchies with Wildcards in Python

Build a lightweight NATS-style pub/sub mock that matches subject hierarchies with '*' and '>' wildcards for tests or prototypes.

nats pubsub wildcards
Python 
# Mock a simplified NATS subject hierarchy with wildcard matching
# Supports: exact match, '*' (single token), '>' (tail wildcard)

class NATSSubjectMock:
    def __init__(self):
        self.subscriptions = {}  # subject -> list of callbacks

    def subscribe(self, subject, callback):
        self.subscriptions.setd…
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