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Observability & SRE

Structured logging, metrics, tracing, health checks, and SLO-friendly instrumentation.

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Observability & SRE medium

How to Check Uptime with a Synthetic HTTP Mock in Python

Run a mock HTTP server locally and probe it with urllib to measure synthetic uptime and response times, perfect for testing monitoring logic without external dependencies.

uptime http-server monitoring
Python 
import http.server
import threading
import time
import urllib.request


class MockHandler(http.server.BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == "/health":
            self.send_response(200)
            self.send_header("Content-Type", "application/json")
            self.end_headers()
   …
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