Cannot successfully implement http.Handler












0















I'm trying to get the following code to compile. I cannot successfully implement my own template handler struct an it results in the following error upon build.



Error:



./main.go:28:46: cannot use templateHandler literal (type *templateHandler) as type http.Handler in argument to http.Handle:
*templateHandler does not implement http.Handler (missing ServeHTTP method)



package main

import (
"html/template"
"log"
"net/http"
"path/filepath"
"sync"
)

// templ represents a single template

type templateHandler struct {
once sync.Once
filename string
templ *template.Template
}

// ServeHTTP handles the HTTP request.
func (t *templateHandler) ServerHTTP(w http.ResponseWriter, r *http.Request) {
t.once.Do(func() {
t.templ = template.Must(template.ParseFiles(filepath.Join("templates", t.filename)))
})
t.templ.Execute(w, nil)
}

func main() {
http.Handle("/", &templateHandler{filename: "chat.html"})
// Start Web Server
if err := http.ListenAndServe(":8080", nil); err != nil {
log.Fatal("ListenAndServe:", err)
}
}









share|improve this question



























    0















    I'm trying to get the following code to compile. I cannot successfully implement my own template handler struct an it results in the following error upon build.



    Error:



    ./main.go:28:46: cannot use templateHandler literal (type *templateHandler) as type http.Handler in argument to http.Handle:
    *templateHandler does not implement http.Handler (missing ServeHTTP method)



    package main

    import (
    "html/template"
    "log"
    "net/http"
    "path/filepath"
    "sync"
    )

    // templ represents a single template

    type templateHandler struct {
    once sync.Once
    filename string
    templ *template.Template
    }

    // ServeHTTP handles the HTTP request.
    func (t *templateHandler) ServerHTTP(w http.ResponseWriter, r *http.Request) {
    t.once.Do(func() {
    t.templ = template.Must(template.ParseFiles(filepath.Join("templates", t.filename)))
    })
    t.templ.Execute(w, nil)
    }

    func main() {
    http.Handle("/", &templateHandler{filename: "chat.html"})
    // Start Web Server
    if err := http.ListenAndServe(":8080", nil); err != nil {
    log.Fatal("ListenAndServe:", err)
    }
    }









    share|improve this question

























      0












      0








      0








      I'm trying to get the following code to compile. I cannot successfully implement my own template handler struct an it results in the following error upon build.



      Error:



      ./main.go:28:46: cannot use templateHandler literal (type *templateHandler) as type http.Handler in argument to http.Handle:
      *templateHandler does not implement http.Handler (missing ServeHTTP method)



      package main

      import (
      "html/template"
      "log"
      "net/http"
      "path/filepath"
      "sync"
      )

      // templ represents a single template

      type templateHandler struct {
      once sync.Once
      filename string
      templ *template.Template
      }

      // ServeHTTP handles the HTTP request.
      func (t *templateHandler) ServerHTTP(w http.ResponseWriter, r *http.Request) {
      t.once.Do(func() {
      t.templ = template.Must(template.ParseFiles(filepath.Join("templates", t.filename)))
      })
      t.templ.Execute(w, nil)
      }

      func main() {
      http.Handle("/", &templateHandler{filename: "chat.html"})
      // Start Web Server
      if err := http.ListenAndServe(":8080", nil); err != nil {
      log.Fatal("ListenAndServe:", err)
      }
      }









      share|improve this question














      I'm trying to get the following code to compile. I cannot successfully implement my own template handler struct an it results in the following error upon build.



      Error:



      ./main.go:28:46: cannot use templateHandler literal (type *templateHandler) as type http.Handler in argument to http.Handle:
      *templateHandler does not implement http.Handler (missing ServeHTTP method)



      package main

      import (
      "html/template"
      "log"
      "net/http"
      "path/filepath"
      "sync"
      )

      // templ represents a single template

      type templateHandler struct {
      once sync.Once
      filename string
      templ *template.Template
      }

      // ServeHTTP handles the HTTP request.
      func (t *templateHandler) ServerHTTP(w http.ResponseWriter, r *http.Request) {
      t.once.Do(func() {
      t.templ = template.Must(template.ParseFiles(filepath.Join("templates", t.filename)))
      })
      t.templ.Execute(w, nil)
      }

      func main() {
      http.Handle("/", &templateHandler{filename: "chat.html"})
      // Start Web Server
      if err := http.ListenAndServe(":8080", nil); err != nil {
      log.Fatal("ListenAndServe:", err)
      }
      }






      http templates go webserver






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      share|improve this question










      asked Nov 24 '18 at 4:03









      NicholasNicholas

      362212




      362212
























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          Interface has the following representation.



          type Handler interface {
          ServeHTTP(ResponseWriter, *Request)
          }


          You're misspelled with the name. ServerHTTP/ServeHTTP.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

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            active

            oldest

            votes






            active

            oldest

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            Interface has the following representation.



            type Handler interface {
            ServeHTTP(ResponseWriter, *Request)
            }


            You're misspelled with the name. ServerHTTP/ServeHTTP.






            share|improve this answer




























              2














              Interface has the following representation.



              type Handler interface {
              ServeHTTP(ResponseWriter, *Request)
              }


              You're misspelled with the name. ServerHTTP/ServeHTTP.






              share|improve this answer


























                2












                2








                2







                Interface has the following representation.



                type Handler interface {
                ServeHTTP(ResponseWriter, *Request)
                }


                You're misspelled with the name. ServerHTTP/ServeHTTP.






                share|improve this answer













                Interface has the following representation.



                type Handler interface {
                ServeHTTP(ResponseWriter, *Request)
                }


                You're misspelled with the name. ServerHTTP/ServeHTTP.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 24 '18 at 4:35









                dshildshil

                276110




                276110
































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