fixed fallback handling

index.js

@@ -66,8 +66,16 @@ async function track(id, format, tagging) {
 
     encrypted = !['320', 'flac'].includes(format)
     if (!encrypted) {     // server-side stream url
-        // TODO: handle alternatives
-        result = json['url_' + format]
+        // needed if track has fallback, like https://www.deezer.com/track/11835714
+        let urls
+        if (!json.alternative) {
+            urls = json
+        } else {
+            const temp = await fetch(`https://api.deezer.com/streaming_url.php?access_token=${ACCESS_TOKEN}&track_id=${json.alternative.id}`)
+            urls = await temp.json()
+        }
+
+        result = urls['url_' + format]
 
         if (result === undefined) {
             return new Response('Format unavailable', { status: 403, headers: { 'content-type': 'text/plain' } })

wrangler.toml

@@ -3,4 +3,3 @@ type = "webpack"
 webpack_config = "webpack.config.js"
 account_id = "03479b0523a52b140e0dabac40cb0fc8"
 workers_dev = true
-vars = { ACCESS_TOKEN = "haha nope" }