From adf738a1c1a8951cb2be98f4b207e6ba8a410029 Mon Sep 17 00:00:00 2001
From: tyze <36153252+tyzesc@users.noreply.github.com>
Date: Fri, 10 Jun 2022 16:22:48 +0800
Subject: [PATCH] Add "Missing SESSION_TOKEN" exception.

---
 src/youtube-studio-api.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/youtube-studio-api.js b/src/youtube-studio-api.js
index 355daf9..d0c8ac5 100644
--- a/src/youtube-studio-api.js
+++ b/src/youtube-studio-api.js
@@ -381,6 +381,21 @@ async function getEndScreen(videoId) {
 
 
 async function upload(options) {
+    // 
+    // @tyzesc
+    // 
+    // Fix GitHub issue #21
+    // https://github.com/adasq/youtube-studio/issues/21
+    // 
+    // Missing SESSION_TOKEN will make YouTube return 401 Unauthorized Error,
+    // and uploadFile pass null value to node-fetch and will cause error.
+    // 
+    if (typeof sessionToken !== 'string' || sessionToken.length === 0) {
+        throw {
+            text: 'Missing SESSION_TOKEN on init will cause Unauthorized Request. Please check your SESSION_TOKEN is set correctly in init function.'
+        }
+    }
+
     return uploadFile(options, headers, config, sessionToken)
 }
 
@@ -619,4 +634,4 @@ module.exports = {
     setInfoCards,
     getVideoClaims,
     upload
-}
\ No newline at end of file
+}