func init() {
DefaultMux = web.New()
DefaultMux.Use(middleware.RequestID)
DefaultMux.Use(middleware.Logger)
DefaultMux.Use(middleware.Recoverer)
DefaultMux.Use(middleware.AutomaticOptions)
}
func Example() {
m := web.New()
// Use your favorite HTTP verbs and the interfaces you know and love
// from net/http:
m.Get("/hello", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Why hello there!\n")
})
m.Post("/login", func(w http.ResponseWriter, r *http.Request) {
if r.FormValue("password") != "god" {
http.Error(w, "Hack the planet!", 401)
}
})
// Handlers can optionally take a context parameter, which contains
// (among other things) a set of bound parameters.
hello := func(c web.C, w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello, %s!\n", c.URLParams["name"])
}
// Bind parameters using pattern strings...
m.Get("/hello/:name", hello)
// ...or use regular expressions if you need additional power.
bonjour := regexp.MustCompile(`^/bonjour/(?P<name>[A-Za-z]+)$`)
m.Get(bonjour, hello)
// Middleware are a great abstraction for performing logic on every
// request. Some middleware use the Goji context object to set
// request-scoped variables.
logger := func(h http.Handler) http.Handler {
wrap := func(w http.ResponseWriter, r *http.Request) {
log.Println("Before request")
h.ServeHTTP(w, r)
log.Println("After request")
}
return http.HandlerFunc(wrap)
}
auth := func(c *web.C, h http.Handler) http.Handler {
wrap := func(w http.ResponseWriter, r *http.Request) {
if cookie, err := r.Cookie("user"); err == nil {
c.Env["user"] = cookie.Value
}
h.ServeHTTP(w, r)
}
return http.HandlerFunc(wrap)
}
// A Middleware stack is a flexible way to assemble the common
// components of your application, like request loggers and
// authentication. There is an ecosystem of open-source middleware for
// Goji, so there's a chance someone has already written the middleware
// you are looking for!
m.Use(middleware.EnvInit)
m.Use(logger)
m.Use(auth)
}
func main() {
// Add routes to the global handler
goji.Get("/", Root)
// Fully backwards compatible with net/http's Handlers
goji.Get("/greets", http.RedirectHandler("/", 301))
// Use your favorite HTTP verbs
goji.Post("/greets", NewGreet)
// Use Sinatra-style patterns in your URLs
goji.Get("/users/:name", GetUser)
// Goji also supports regular expressions with named capture groups.
goji.Get(regexp.MustCompile(`^/greets/(?P<id>\d+)$`), GetGreet)
// Middleware can be used to inject behavior into your app. The
// middleware for this application are defined in middleware.go, but you
// can put them wherever you like.
goji.Use(PlainText)
// If the patterns ends with "/*", the path is treated as a prefix, and
// can be used to implement sub-routes.
admin := web.New()
goji.Handle("/admin/*", admin)
// The standard SubRouter middleware helps make writing sub-routers
// easy. Ordinarily, Goji does not manipulate the request's URL.Path,
// meaning you'd have to repeat "/admin/" in each of the following
// routes. This middleware allows you to cut down on the repetition by
// eliminating the shared, already-matched prefix.
admin.Use(middleware.SubRouter)
// You can also easily attach extra middleware to sub-routers that are
// not present on the parent router. This one, for instance, presents a
// password prompt to users of the admin endpoints.
admin.Use(SuperSecure)
admin.Get("/", AdminRoot)
admin.Get("/finances", AdminFinances)
// Goji's routing, like Sinatra's, is exact: no effort is made to
// normalize trailing slashes.
goji.Get("/admin", http.RedirectHandler("/admin/", 301))
// Use a custom 404 handler
goji.NotFound(NotFound)
// Sometimes requests take a long time.
goji.Get("/waitforit", WaitForIt)
// Call Serve() at the bottom of your main() function, and it'll take
// care of everything else for you, including binding to a socket (with
// automatic support for systemd and Einhorn) and supporting graceful
// shutdown on SIGINT. Serve() is appropriate for both development and
// production.
goji.Serve()
}
func TestNoCache(t *testing.T) {
rr := httptest.NewRecorder()
s := web.New()
s.Use(NoCache)
r, err := http.NewRequest("GET", "/", nil)
if err != nil {
t.Fatal(err)
}
s.ServeHTTP(rr, r)
for k, v := range noCacheHeaders {
if rr.HeaderMap[k][0] != v {
t.Errorf("%s header not set by middleware.", k)
}
}
}