How to write an API From Hell or how to send a bad HTTP Response
Read OriginalThis article details the creation of the 'API From Hell', an HTTP server with endpoints returning deliberately problematic responses (e.g., 204 with body, missing Content-Type, BOMs) to stress-test REST clients and proxies. The author explains challenges in bypassing frameworks like Mockoon and Javalin, and provides multiple language implementations on GitHub. It highlights how tools like Postman, MITMProxy, and ZAP handle or fail on these edge cases, offering insights for developers building HTTP libraries or testing tools.
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