Microservices patterns
Service boundaries, discovery, inter-service calls, and decomposition patterns.
How to Handle mTLS Certificate Rotation in Python
Detect mTLS certificate file changes by tracking modification time and hot-reload the SSL context in a running service.
import ssl
import tempfile
import datetime
from pathlib import Path
class MTLSContext:
def __init__(self, cert_path, key_path, ca_path):
self.cert_path = Path(cert_path)
self.key_path = Path(key_path)
self.ca_path = Path(ca_path)
self.context = None
self.last_loaded_mtime …How to Mock a Choreography Saga in Python
Simulate a choreography-based saga with event envelopes, status tracking, and compensating actions to model distributed transactions.
import json
from dataclasses import dataclass, asdict
from typing import List, Optional
from enum import Enum
class SagaStatus(Enum):
PENDING = "PENDING"
COMPLETING = "COMPLETING"
COMPLETED = "COMPLETED"
FAILED = "FAILED"
@dataclass
class EventEnvelope:
event_type: str
order_id: str
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Microservices patterns — Python code examples
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This page collects microservices patterns snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.
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