fix: channel id irregular

routes/channel.js

@@ -0,0 +1,41 @@
+const axios = require("axios");
+const cheerio = require("cheerio");
+
+function channelRouteHandler(app) {
+  app.get("/api/channel/:username", async (req, res) => {
+    try {
+      const username = req.params.username;
+      if (!username) {
+        return res.status(400).json({ error: "Username is required" });
+      }
+
+      const response = await axios.get(`https://www.youtube.com/${username}`);
+      const $ = cheerio.load(response.data);
+      const canonicalLink = $('link[rel="canonical"]').attr("href");
+
+      if (!canonicalLink) {
+        return res.status(404).json({ error: "Channel not found" });
+      }
+
+      const channelIdMatch = canonicalLink.match(/\/channel\/([\w-]+)/);
+      const channelId = channelIdMatch ? channelIdMatch[1] : null;
+
+      if (!channelId) {
+        return res.status(404).json({ error: "Could not extract channel ID" });
+      }
+
+      return res.json({
+        channelId: channelId,
+        username: username,
+      });
+    } catch (error) {
+      console.error("Error fetching channel ID:", error.message);
+      return res.status(500).json({
+        error: "Failed to fetch channel ID",
+        message: error.message,
+      });
+    }
+  });
+}
+
+module.exports = channelRouteHandler;