杜松子酒gonic中间件，如何获取链中下一个处理程序的失败/成功状态

Question

I am writing a middleware, using gin gonic golang framework. I want to know within my middleware, if the call to next handler failed and take action based on that.

func foo() gin.HandlerFunc {
    //do something..
    c.Next()
    //do something based on result of c.Next()
}

How can I do that? Documentation for next doesnt give much information https://godoc.org/github.com/gin-gonic/gin#Context.Next

Can you offer any suggestions. I basically want to check for non-existing api endpoints, for example, someone enters a URL, for which we don't have any api endpoint, then can I detect it here.

Answer 1

There is a method on Engine called NoRoute that you can pass route handlers to handle 404's and such.