start

hello-world/helloworld.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+  "fmt"
+  "log"
+  "net/http"
+  "os"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+  log.Print("Hello world received a request.")
+  target := os.Getenv("TARGET")
+  if target == "" {
+    target = "World"
+  }
+  fmt.Fprintf(w, "Hello %s!\n", target)
+}
+
+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))
+}