kristofbator

isprime-go/isprime.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+  "fmt"
+  "log"
+  "net/http"
+  "os"
+  "math"
+  "strconv"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+    target := os.Getenv("TARGET")
+    num, err := strconv.Atoi(target)
+	if err != nil {
+		fmt.Errorf("Failed to parse %s as int! %v", target, err)
+	}
+	log.Print("Checking if %s is prime", target)
+	if num <= 1 {
+		fmt.Sprintf("%d is not prime", num)
+	}
+	for i := 2; i <= int(math.Floor(float64(num)/2)); i++ {
+		if num%i == 0 {
+			fmt.Sprintf("%d is not prime", num)
+		}
+	}
+	fmt.Sprintf("%d is prime", num)
+}
+
+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))
+}