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