codewars/go/server/main.go

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func Index(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hello world")

	fmt.Println("File opening...")
	file, err := os.Open("main.go")
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	defer file.Close()

	data := make([]byte, 64)

	for {
		n, err := file.Read(data)
		if err == io.EOF {
			break
		}
		w.Write(data)
		fmt.Print(string(data[:n]))
	}

}

func Update(w http.ResponseWriter, r *http.Request) {
	fmt.Println(r.URL.Path)
	fmt.Println(r.Method)
	fmt.Println(r.Header)

	if r.URL.Path == "/fw.bin" {
		fmt.Println("Download update file...")
		http.ServeFile(w, r, `fw.bin`)
	}
}

func main() {
	fmt.Println("Starting HTTP server...")
	// http.HandleFunc("/", Index)
	http.HandleFunc("/fw.bin", Update)
	http.ListenAndServe(":9000", nil)
}