http2 server push

http.Pusher is supported only go1.8+. See the golang blog for detail information.

  1. package main
  3. import (
  4.     "html/template"
  5.     "log"
  7.     "github.com/gin-gonic/gin"
  8. )
  10. var html = template.Must(template.New("https").Parse(`
  11. <html>
  12. <head>
  13.   <title>Https Test</title>
  14.   <script src="/assets/app.js"></script>
  15. </head>
  16. <body>
  17.   <h1 style="color:red;">Welcome, Ginner!</h1>
  18. </body>
  19. </html>
  20. `))
  22. func main() {
  23.     r := gin.Default()
  24.     r.Static("/assets", "./assets")
  25.     r.SetHTMLTemplate(html)
  27.     r.GET("/", func(c *gin.Context) {
  28.         if pusher := c.Writer.Pusher(); pusher != nil {
  29.             // use pusher.Push() to do server push
  30.             if err := pusher.Push("/assets/app.js", nil); err != nil {
  31.                 log.Printf("Failed to push: %v", err)
  32.             }
  33.         }
  34.         c.HTML(200, "https", gin.H{
  35.             "status": "success",
  36.         })
  37.     })
  39.     // Listen and Server in https://127.0.0.1:8080
  40.     r.RunTLS(":8080", "./testdata/server.pem", "./testdata/server.key")
  41. }