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Implement a minimal local HTTP server

RipplingSoftware Engineer · Onsite
HardSoftware EngineerOnsiteSoftware Engineering Fundamentals

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This question evaluates proficiency in network programming, HTTP/1.1 protocol parsing, concurrent server design, request routing and security (including path traversal protection), observability, testing, and graceful shutdown using only the language standard library.

Implement a minimal local HTTP server from scratch (no frameworks). Requirements: listen on a configurable port, parse HTTP/1.1 requests, support GET and POST, route two endpoints (/health returning 200 OK; /echo returning the request body), serve static files from a directory with correct Content-Type, handle concurrent connections, request timeouts, graceful shutdown, and structured request logging. Return appropriate errors (400/404/ 405). Include unit tests and clear run instructions for local development.