The "net/http" package implements the function DetectContentType
http://golang.org/pkg/net/http/#DetectContentType
but when I try to use it, i get the error undefined: DetectContentType
package main
import (
"fmt"
"io/ioutil"
"log"
"net/http"
)
func main() {
res, err := http.Get("http://www.google.com/robots.txt")
if err != nil {
log.Fatal(err)
}
robots, err := ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
log.Fatal(err)
}
fileType := DetectContentType(robots)
fmt.Println("FileType: ", fileType)
}
https://play.golang.org/p/WJDuU8Xx-5
What am I doing wrong?