| // server is a server with HTTP/2 Server Push support. |
| package main |
| |
| import ( |
| "flag" |
| "fmt" |
| "log" |
| "net/http" |
| ) |
| |
| var httpAddr = flag.String("http", ":8080", "Listen address") |
| |
| func main() { |
| flag.Parse() |
| http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static")))) |
| http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { |
| if r.URL.Path != "/" { |
| http.NotFound(w, r) |
| return |
| } |
| pusher, ok := w.(http.Pusher) |
| if ok { |
| // Push is supported. Try pushing rather than |
| // waiting for the browser request these static assets. |
| if err := pusher.Push("/static/app.js", nil); err != nil { |
| log.Printf("Failed to push: %v", err) |
| } |
| if err := pusher.Push("/static/style.css", nil); err != nil { |
| log.Printf("Failed to push: %v", err) |
| } |
| } |
| fmt.Fprintf(w, indexHTML) |
| }) |
| log.Fatal(http.ListenAndServeTLS(*httpAddr, "cert.pem", "key.pem", nil)) |
| } |
| |
| const indexHTML = `<html> |
| <head> |
| <title>Hello World</title> |
| <script src="/static/app.js"></script> |
| <link rel="stylesheet" href="/static/style.css""> |
| </head> |
| <body> |
| Hello, gopher! |
| </body> |
| </html> |
| ` |
