Go言語ミドルウェア例 - Qiita

// main.go package main import "fmt" type handlerFunc func(interface{}) type middlewareFunc func(interface{}, handlerFunc) func main() { middlewares := []middlewareFunc{middleware1(), middleware2()} c := chainHandler(middlewares) c("テスト", handler()) } func handler() handlerFunc { return func(param interface{}) { fmt.Println("handler1") fmt.Println(param) } } func middleware1() middlewareFunc { ret