Go Language: HTTP Middleware Chain – CAS Operation Principles and Dynamic Dispatch Efficiency Improvement

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Yesterday, my friend Xiao Li called me: “Brother Feng, help! Our API service always lags during peak times, and I suspect it’s a middleware issue.” I laughed; isn’t this an old story? No matter how fancy the code is, it can’t escape the performance hurdle. Especially in Go’s HTTP services, the middleware chain is like an assembly line; if one part is mishandled, the entire line is affected. Today, let’s delve into the HTTP middleware chain in Go, examining the underlying CAS operation principles and how to enhance dispatch efficiency.

Middleware Chain: Assembly Line or Maze?

Imagine your HTTP request as a package that enters through the front door, going through security checks (authentication), sorting (routing), and packaging (data processing) before exiting through the back door (response). This series of processes is the middleware chain. But what’s the problem? Many developers write it as a

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