How HTTP chunked transfer encoding works, with Go and Python examples

This DEV Community article explains HTTP chunked transfer encoding, which lets a server send a response body in pieces without knowing its total length in advance. It describes common use cases such as long-running computations that emit output gradually, large files served from disk, real-time data feeds, and server-sent events. The wire format is broken down, with each chunk prefixed by its size in hexadecimal and a zero-length chunk marking the end of the response. The piece also includes practical implementations of the technique, one written in Go and one in Python, that stream output over raw sockets.