Update backend/server.js

backend/server.js

@@ -28,13 +28,19 @@ apiRouter.post('/download', async (req, res) => {
     const { url, quality, platform, sessionId, creditCost } = req.body;
     
     try {
-        const eligibility = await CreditService.checkEligibility(sessionId, null, 'downloader', false, creditCost);
+        let eligibility = null;
+
+        // BYPASS LOGIC: Only check eligibility and deduct credits if NOT tiktok
+        if (platform !== 'tiktok') {
+            eligibility = await CreditService.checkEligibility(sessionId, null, 'downloader', false, creditCost);
+        } else {
+            console.log(`[DOWNLOADER] TikTok bypass triggered for URL: ${url}`);
+        }
         
         const timestamp = Date.now();
         const fileBaseName = `tm_dl_${timestamp}`;
         const outputDir = '/tmp';
         
-        // Determine file extension and format string
         const extension = quality === 'audio' ? 'mp3' : 'mp4';
         const outputPath = path.join(outputDir, `${fileBaseName}.${extension}`);
         
@@ -53,8 +59,6 @@ apiRouter.post('/download', async (req, res) => {
 
         const tiktokArgs = platform === 'tiktok' ? '--referer "https://www.tiktok.com/"' : '';
         
-        // CRITICAL FIX: Added --js-runtime node to fix JS engine missing error.
-        // Added --no-warnings and --no-check-certificate for better reliability on Cloud Run.
         const command = `yt-dlp --no-playlist --no-warnings --no-check-certificate --js-runtime node ${formatStr} ${tiktokArgs} -o "${outputPath}" "${url.trim()}"`;
         
         console.log(`[DOWNLOADER] Executing: ${command}`);
@@ -63,18 +67,19 @@ apiRouter.post('/download', async (req, res) => {
             await execPromise(command);
         } catch (execErr) {
             console.error("[DL-EXEC-FAIL]", execErr.stderr || execErr.message);
-            // Even if warnings are printed to stderr, check if file exists before crashing
             if (!fs.existsSync(outputPath)) {
                 throw new Error(`Engine Error: ${execErr.stderr || execErr.message}`);
             }
         }
 
-        // Verify file existence explicitly
         if (!fs.existsSync(outputPath)) {
             throw new Error("Download engine failed. File not generated.");
         }
         
-        await CreditService.commitDeduction(eligibility);
+        // Only commit deduction if eligibility was checked (non-tiktok)
+        if (eligibility) {
+            await CreditService.commitDeduction(eligibility);
+        }
 
         res.download(outputPath, `${fileBaseName}.${extension}`, (err) => {
             if (err) console.error("Stream Error:", err);