JSON error print

noolite-cli.go

@@ -107,7 +107,9 @@ func main() {
 			err := sendCommand(command, channel, value, red, green, blue)
 
 			if err != nil {
-				fmt.Fprintf(w, "Error: %q\n", err)
+				fmt.Fprintf(w, "{\"error\": \"%q\"}", err)
+			} else {
+				fmt.Fprintf(w, "{\"command\": \"%q\", \"channel\": \"%d\"}", command, channel)
 			}
 		})