From 575feaa46f777cc3d837f4bea0bf8e620b61b9fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=AA=20H=E1=BA=A3i=20Nam?= <lehainam.dev@gmail.com>
Date: Mon, 29 Oct 2018 01:52:56 +0700
Subject: [PATCH] Add Graph API version option to BootBot constructor

---
 README.md      | 1 +
 lib/BootBot.js | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 0ec3020..347d2d3 100644
--- a/README.md
+++ b/README.md
@@ -189,6 +189,7 @@ Then use the provided HTTPS URL to config your webhook on Facebook's Dashboard.
 | `appSecret` | string | | `Y` |
 | `webhook` | string | `"/webhook"` | `N` |
 | `broadcastEchoes` | boolean | `false` | `N` |
+| `graphApiVersion` | string | `v2.12` | `N` |
 
 Creates a new `BootBot` instance. Instantiates the new express app and all required webhooks. `options` param must contain all tokens and app secret of your Facebook app. Optionally, set `broadcastEchoes` to `true` if you want the messages your bot send to be echoed back to it (you probably don't need this feature unless you have multiple bots running on the same Facebook page).
 
diff --git a/lib/BootBot.js b/lib/BootBot.js
index 1b60321..12b0698 100644
--- a/lib/BootBot.js
+++ b/lib/BootBot.js
@@ -18,6 +18,7 @@ class BootBot extends EventEmitter {
    * @param {String} options.appSecret
    * @param {String} [options.webhook=/webhook]
    * @param {Boolean} [options.broadcastEchoes=false]
+   * @param {String} [options.graphApiVersion=v2.12]
    */
   constructor(options) {
     super();
@@ -28,6 +29,7 @@ class BootBot extends EventEmitter {
     this.verifyToken = options.verifyToken;
     this.appSecret = options.appSecret;
     this.broadcastEchoes = options.broadcastEchoes || false;
+    this.graphApiVersion = options.graphApiVersion || 'v2.12';
     this.app = express();
     this.webhook = options.webhook || '/webhook';
     this.webhook = this.webhook.charAt(0) !== '/' ? `/${this.webhook}` : this.webhook;
@@ -270,7 +272,7 @@ class BootBot extends EventEmitter {
   sendRequest(body, endpoint, method) {
     endpoint = endpoint || 'messages';
     method = method || 'POST';
-    return fetch(`https://graph.facebook.com/v2.12/me/${endpoint}?access_token=${this.accessToken}`, {
+    return fetch(`https://graph.facebook.com/${this.graphApiVersion}/me/${endpoint}?access_token=${this.accessToken}`, {
       method,
       headers: {
         'Content-Type': 'application/json'
@@ -334,7 +336,7 @@ class BootBot extends EventEmitter {
    * @returns {Promise}
    */
   getUserProfile(userId) {
-    const url = `https://graph.facebook.com/v2.12/${userId}?fields=first_name,last_name,profile_pic,locale,timezone,gender&access_token=${this.accessToken}`;
+    const url = `https://graph.facebook.com/${this.graphApiVersion}/${userId}?fields=first_name,last_name,profile_pic,locale,timezone,gender&access_token=${this.accessToken}`;
     return fetch(url)
       .then(res => res.json())
       .catch(err => console.log(`Error getting user profile: ${err}`));