40 lines
808 B
Go
40 lines
808 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"log"
|
||
|
|
"net/http"
|
||
|
|
"os"
|
||
|
|
)
|
||
|
|
|
||
|
|
func handler(w http.ResponseWriter, r *http.Request) {
|
||
|
|
target := os.Getenv("TARGET")
|
||
|
|
num, err := strconv.Atoi(target)
|
||
|
|
if err != nil {
|
||
|
|
return "", fmt.Errorf("Failed to parse %s as int! %v", target, err)
|
||
|
|
}
|
||
|
|
logrus.Infof("Checking if %s is prime", target)
|
||
|
|
if num <= 1 {
|
||
|
|
return fmt.Fprintf(w,"%d is not prime", num), nil
|
||
|
|
}
|
||
|
|
for i := 2; i <= int(math.Floor(float64(num)/2)); i++ {
|
||
|
|
if num%i == 0 {
|
||
|
|
return fmt.Fprintf(w,"%d is not prime", num), nil
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return fmt.Fprintf(w,"%d is prime", num), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
log.Print("Hello world sample started.")
|
||
|
|
|
||
|
|
http.HandleFunc("/", handler)
|
||
|
|
|
||
|
|
port := os.Getenv("PORT")
|
||
|
|
if port == "" {
|
||
|
|
port = "8080"
|
||
|
|
}
|
||
|
|
|
||
|
|
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
|
||
|
|
}
|