package main import ( "encoding/json" "fmt" "log" "os" ) type Person struct { Name string } func main() { // b, err := ioutil.ReadAll(os.Stdin) // if err != nil { // log.Fatal(err) // } // fmt.Printf("BODY!!! %s", string(b)) p := &Person{Name: "World"} json.NewDecoder(os.Stdin).Decode(p) fmt.Printf("Hello %v!\n", p.Name) log.Println("---> stderr goes to the server logs.") }