add function to check if a Twitch channel is live

1 files changed, 20 insertions, 20 deletions

diff --git a/source/index.js b/source/index.js
index 2fbb0d5..ad3472a 100644
--- a/source/index.js
+++ b/source/index.js
@@ -56,6 +56,26 @@ export default {
     });
 
     router.add("/96/twitch/streaming", async (request) => {
+      /*
+        Checks if a twitch channel is live by fetching the "live" preview image of the channel,
+        if the image is fetched successfully, then the channel is live, otherwise it's offline.
+
+        @param {string} channel - the twitch channel name
+        @returns {boolean} true if the channel is live, false otherwise
+      */
+      async function isTwitchChannelLive(channel) {
+        // construct preview image url with channel name
+        const livePreviewUrl = `https://static-cdn.jtvnw.net/previews-ttv/live_user_${channel}-320x180.jpg`;
+
+        // fetch the preview image, don't follow redirects
+        const response = await fetch(livePreviewUrl, {
+          redirect: "manual",
+        });
+
+        // check if the image was fetched successfully
+        return response.ok;
+      }
+
       const url = new URL(request.url);
       const channel = url.searchParams.get("channel");
 
@@ -114,23 +134,3 @@ export default {
     console.log("Scheduled event triggered!");
   },
 };
-
-/*
-  Checks if a twitch channel is live by fetching the "live" preview image of the channel,
-  if the image is fetched successfully, then the channel is live, otherwise it's offline.
-  
-  @param {string} channel - the twitch channel name
-  @returns {boolean} true if the channel is live, false otherwise
-*/
-async function isTwitchChannelLive(channel) {
-  // construct preview image url with channel name
-  const livePreviewUrl = `https://static-cdn.jtvnw.net/previews-ttv/live_user_${channel}-320x180.jpg`;
-
-  // fetch the preview image, don't follow redirects
-  const response = await fetch(livePreviewUrl, {
-    redirect: "manual",
-  });
-
-  // check if the image was fetched successfully
-  return response.ok;
-}