up

server.js

@@ -0,0 +1,110 @@
+const express = require('express');
+const cors = require('cors');
+const { YoutubeTranscript } = require('youtube-transcript');
+
+const app = express();
+const PORT = 7860;
+
+// Enable CORS for your Vercel frontend
+app.use(cors());
+app.use(express.json());
+
+// ========================================================
+// KEEP-ALIVE ENDPOINT
+// ========================================================
+app.get('/api/health', (req, res) => {
+  res.json({ status: 'ok', message: 'Transcript API is running!' });
+});
+
+// ========================================================
+// TRANSCRIPT API
+// ========================================================
+app.post('/api/transcript', async (req, res) => {
+  try {
+    const { url } = req.body;
+
+    const videoIdMatch = url.match(
+      /(?:youtube\.com\/(?:[^\/]+\/.+\/|(?:v|e(?:mbed)?)\/|.*[?&]v=)|youtu\.be\/)([^"&?\/\s]{11})/
+    );
+    if (!videoIdMatch) {
+      return res.status(400).json({ error: "Invalid YouTube URL" });
+    }
+    const videoId = videoIdMatch[1];
+
+    let transcriptData;
+    let retries = 3;
+    let lastError;
+
+    while (retries > 0) {
+      try {
+        transcriptData = await YoutubeTranscript.fetchTranscript(videoId);
+        break; // success
+      } catch (err) {
+        lastError = err;
+        retries--;
+        if (retries > 0) {
+          await new Promise((resolve) => setTimeout(resolve, 2000));
+        }
+      }
+    }
+
+    if (!transcriptData) {
+      throw lastError;
+    }
+
+    const fullText = transcriptData
+      .map((t) => t.text)
+      .join(" ")
+      .replace(/'|"/g, "'");
+
+    res.json({ text: fullText });
+  } catch (error) {
+    console.error("Transcript Error:", error.message);
+    res.status(500).json({
+      error: "Could not fetch transcript. The video might not have captions enabled, or the request timed out."
+    });
+  }
+});
+
+// ========================================================
+// TRANSLATE API
+// ========================================================
+app.post('/api/translate', async (req, res) => {
+  try {
+    const { text, targetLang } = req.body;
+
+    if (!text || !targetLang) {
+      return res.status(400).json({ error: "Missing text or target language" });
+    }
+
+    const url = `https://translate.googleapis.com/translate_a/single?client=gtx&sl=auto&tl=${targetLang}&dt=t`;
+
+    const fetchRes = await fetch(url, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/x-www-form-urlencoded",
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
+      },
+      body: `q=${encodeURIComponent(text)}`,
+    });
+
+    if (!fetchRes.ok) {
+      const errText = await fetchRes.text();
+      console.error("Google API Error:", errText);
+      throw new Error(`Translation service responded with status ${fetchRes.status}`);
+    }
+
+    const data = await fetchRes.json();
+    const translated = data[0].map((item) => item[0]).join("");
+
+    res.json({ translatedText: translated });
+  } catch (error) {
+    console.error("Translation API Error:", error.message);
+    res.status(500).json({ error: "Failed to translate text. " + error.message });
+  }
+});
+
+// Start server
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`Server running on http://0.0.0.0:${PORT}`);
+});