From be1779c3c5f3347a7cc4cb143532c057ec10c8f8 Mon Sep 17 00:00:00 2001
From: Samuel El-Borai <samuel.elborai@gmail.com>
Date: Sun, 18 Mar 2018 20:54:43 +0100
Subject: [PATCH] Remove dependency on paked/configure from basic example

---
 examples/basic/config.json.example |  6 ------
 examples/basic/main.go             | 34 ++++++++++++++++++------------
 2 files changed, 20 insertions(+), 20 deletions(-)
 delete mode 100644 examples/basic/config.json.example

diff --git a/examples/basic/config.json.example b/examples/basic/config.json.example
deleted file mode 100644
index 264a73c..0000000
--- a/examples/basic/config.json.example
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "verify-token": "",
-  "should-verify": false,
-  "page-token": "",
-  "app-secret": ""
-}
diff --git a/examples/basic/main.go b/examples/basic/main.go
index 4be7931..f86d6e0 100644
--- a/examples/basic/main.go
+++ b/examples/basic/main.go
@@ -1,29 +1,35 @@
 package main
 
 import (
+	"flag"
 	"fmt"
+	"log"
 	"net/http"
+	"os"
 	"time"
 
-	"github.com/paked/configure"
 	"github.com/paked/messenger"
 )
 
 var (
-	conf        = configure.New()
-	verifyToken = conf.String("verify-token", "mad-skrilla", "The token used to verify facebook")
-	verify      = conf.Bool("should-verify", false, "Whether or not the app should verify itself")
-	pageToken   = conf.String("page-token", "not skrilla", "The token that is used to verify the page on facebook")
-	appSecret   = conf.String("app-secret", "", "The app secret from the facebook developer portal")
-	port        = conf.Int("port", 8080, "The port used to serve the messenger bot")
+	verifyToken = flag.String("verify-token", "mad-skrilla", "The token used to verify facebook (required)")
+	verify      = flag.Bool("should-verify", false, "Whether or not the app should verify itself")
+	pageToken   = flag.String("page-token", "not skrilla", "The token that is used to verify the page on facebook")
+	appSecret   = flag.String("app-secret", "", "The app secret from the facebook developer portal (required)")
+	host        = flag.String("host", "localhost", "The host used to serve the messenger bot")
+	port        = flag.Int("port", 8080, "The port used to serve the messenger bot")
 )
 
 func main() {
-	conf.Use(configure.NewFlag())
-	conf.Use(configure.NewEnvironment())
-	conf.Use(configure.NewJSONFromFile("config.json"))
+	flag.Parse()
 
-	conf.Parse()
+	if *verifyToken == "" || *appSecret == "" || *pageToken == "" {
+		fmt.Println("missing arguments")
+		fmt.Println()
+		flag.Usage()
+
+		os.Exit(-1)
+	}
 
 	// Create a new messenger client
 	client := messenger.New(messenger.Options{
@@ -55,7 +61,7 @@ func main() {
 		fmt.Println("Read at:", m.Watermark().Format(time.UnixDate))
 	})
 
-	fmt.Printf("Serving messenger bot on localhost:%d\n", *port)
-
-	http.ListenAndServe(fmt.Sprintf("localhost:%d", *port), client.Handler())
+	addr := fmt.Sprintf("%s:%d", *host, *port)
+	log.Println("Serving messenger bot on", addr)
+	log.Fatal(http.ListenAndServe(addr, client.Handler()))
 }