how use group router on httprouter?

[runthinker]

for example:
r2 := r.Group('/openapi',middle func)
r3 := r.Group('/authapi',middle func)
r3.Get('/adduser',func handle)
....

[shinriyo]

@runthinker

func main() {
    router := gin.Default()

    v1 := router.Group("/openapi")
    {
        v1.GET("/authapi", middle func)
        v1.GET("/adduser", middle func)
    }
}

[runthinker]

@shinriyo
thank you!
i use this method:
func ValidToken(next httprouter.Handle) httprouter.Handle{
return func(....)
....
}
r.Get("/openapi/adduser",handle func)
r.Get("/authapi/adduser",ValidToken(handle func))

[Hunsin]

You can check the pull request #89 , It has a good implementation of sub routing.

Or, check my Gist, which was inspired by the former one and gin.