Go--- route filter

That is to say, for all patterns , Allow cross domain requests before routing

beego.InsertFilter("*", beego.BeforeRouter, cors.Allow(&cors.Options{
        AllowAllOrigins:  true,
        AllowMethods:     []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
        AllowHeaders:     []string{"Origin", "Authorization", "Access-Control-Allow-Origin", "Access-Control-Allow-Headers", "Content-Type"},
        ExposeHeaders:    []string{"Content-Length", "Access-Control-Allow-Origin", "Access-Control-Allow-Headers", "Content-Type"},
        AllowCredentials: true,
    }))

Parameter description :
AllowAllOrigins Allow all sources to be set to true All domain names can access the website interface , You can change this configuration to AllowOrigins：[“ Allowed access to the domain name ”]
AllowMethods : Allowed request types
AllowHeaders： Allowed header information
ExposeHeaders： Allow exposed header information
AllowCredentials： If you set , Allow sharing AuthTuffic certificate , Such as Cookie

 

beego.InsertFilter filter

beego.InsertFilter Filters are for certain router Provide filtering function , You can set additional operations when accessing a route . The filter execution time can be set through parameter settings .

As shown below beego.InsertFilter There are a few parameters ： InsertFilter(pattern string, pos int, filter FilterFunc, params …bool)

pattern： Routing rules , Filters act as routes

pos : When the filter is executed , There are the following 5 Kind of

beego.BeforeStatic

beego.BeforeRouter  Before accessing routes 

beego.BeforeExec  Execute after accessing the route controller Before 

beego.AfterExec  perform controller Then call 

beego.FinishRouter  Call... After the route ends 

filter： Filter function , The corresponding logic of filtering according to the time specified above .