Go Bootcamp - net/http Server

net/http Server

http.Handler

Um handler é um objeto que implementa a interface http.Handler.


func HandleFunc(pattern string, handler func(ResponseWriter, *Request))

As funções que servem como handlers recebem um http.ResponseWriter e um http.Request como argumentos.

http_handler.go

package main

import (
    "fmt"
    "net/http"
)

func hello(w http.ResponseWriter, req *http.Request) {
    fmt.Fprintf(w, "hello\n")
}

func headers(w http.ResponseWriter, req *http.Request) {
    for name, headers := range req.Header {
        for _, h := range headers {
            fmt.Fprintf(w, "%v: %v\n", name, h)
        }
    }
}

func main() {
    http.HandleFunc("/hello", hello)
    http.HandleFunc("/headers", headers)
    http.ListenAndServe(":8090", nil)
}

​x
 
package main
​
import (
    "fmt"
    "net/http"
)
​
func hello(w http.ResponseWriter, req *http.Request) {
    fmt.Fprintf(w, "hello\n")
}
​
func headers(w http.ResponseWriter, req *http.Request) {
    for name, headers := range req.Header {
        for _, h := range headers {
            fmt.Fprintf(w, "%v: %v\n", name, h)
        }
    }
}
​
func main() {
    http.HandleFunc("/hello", hello)
    http.HandleFunc("/headers", headers)
    http.ListenAndServe(":8090", nil)
}
                    

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