英文:
Unable to run controller while using chi middleware in golang
问题
我正在使用golang的net/http和chi编写一个中间件函数，但是控制器函数没有被执行（在函数中无法打印1）。
调用中间件：
r.With(myMiddleware.Authware).Post("/tryon", mainController.Tryon)
myMiddleware包：
func Authware(next http.Handler) http.Handler {return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {// 中间件代码})}
mainController包：
func Tryon(w http.ResponseWriter, r *http.Request) {// 不打印任何内容log.Println(1)}
我阅读了文档，但没有得到太多帮助。
你能帮忙调试并告诉我为什么会发生这种情况吗？另外，如果我想从中间件向控制器返回一些数据，应该如何做到？
英文:
I am writing a middleware function in golang net/http using chi but the controller function isn't being executed (couldn't print 1 in the function).
Calling the middleware:
r.With(myMiddleware.Authware).Post("/tryon", mainController.Tryon)
package - myMiddleware
func Authware(next http.Handler) http.Handler {return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {// Middleware code})}
package - mainController
func Tryon(w http.ResponseWriter, r *http.Request) {// Dosent print anythinglog.Println(1)}
I read the documentation but it didn't help much
Could you please help out debug and let me know why is this happening? Also, if I want to return some data from the middleware to the controller, how do I do it?
答案1
得分: 2
main.go
func main() {r := chi.NewRouter()r.With(middle.Authware).Post("/tryon", controller.Tryon)http.ListenAndServe(":3000", r)}
在通过中间件逻辑后调用controller：
middleware.go
func Authware(next http.Handler) http.Handler {return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {// 中间件代码next.ServeHTTP(w, r)})}
controller.go
func Tryon(w http.ResponseWriter, r *http.Request) {// 不打印任何内容log.Println(1)}
如果你真的希望它是一个POST请求：curl -X POST localhost:3000/tryon
附注：请查看这里的代码示例：https://github.com/go-chi/chi
英文:
main.go
func main() {r := chi.NewRouter()r.With(middle.Authware).Post("/tryon", controller.Tryon)http.ListenAndServe(":3000", r)}
Invoke the controller after passing the middleware logic:
middleware.go
func Authware(next http.Handler) http.Handler {return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {// Middleware codenext.ServeHTTP(w, r)})}
controller.go
func Tryon(w http.ResponseWriter, r *http.Request) {// Doesn't print anythinglog.Println(1)}
If you really want it to be a POST request: curl -X POST localhost:3000/tryon
P.S: go through the code example here: https://github.com/go-chi/chi
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