Context example that yields panic stacktrace

curl_from_shell

curl http://127.0.0.1:3000/admin/reports/

main.go

package main

import (
    "fmt"
    "net/http"

    "github.com/gocraft/web"
)

type User struct {
    Name string
}

type Context struct {
    Session map[string]string
}

func (c *Context) LoadSession(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) { 
    fmt.Fprintf(rw, "load session")
    next(rw, req)
}

type AdminContext struct {
    *Context
    CurrentAdmin *User
}

func (c *AdminContext) AdminRequired(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
    fmt.Fprintf(rw, "admin required")
    next(rw, req)
}
func (c *AdminContext) Reports(rw web.ResponseWriter, req *web.Request) {
    fmt.Fprintf(rw, "reports \n")
    fmt.Fprintf(rw, c.CurrentAdmin.Name)
}

type ApiContext struct {
    *Context
    AccessToken string
}

func (c *ApiContext) OAuth(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {    
    fmt.Fprintf(rw, "oauth")
    next(rw, req)
}
func (c *ApiContext) TicketsIndex(rw web.ResponseWriter, req *web.Request) {
    fmt.Fprintf(rw, "tickets index")
}

func main() {

    rootRouter := web.New(Context{})
    rootRouter.Middleware((*Context).LoadSession)

    apiRouter := rootRouter.Subrouter(ApiContext{}, "/api")
    apiRouter.Middleware((*ApiContext).OAuth)
    apiRouter.Get("/tickets", (*ApiContext).TicketsIndex)

    adminRouter := rootRouter.Subrouter(AdminContext{CurrentAdmin: &User{Name: "Bill"}}, "/admin")
    adminRouter.Middleware((*AdminContext).AdminRequired)
    adminRouter.Get("/reports", (*AdminContext).Reports)

    // Given the path namesapce for this router is "/admin", the full path of this route is "/admin/reports"
    adminRouter.Get("/reports", (*AdminContext).Reports)
    http.ListenAndServe("localhost:3000", rootRouter) // Start the server!

}