perf(backend): cache YouTube searches and shrink the thumbnail URLs

Repeated searches and song lookups now reuse a single-flight memory cache, so concurrent or debounced queries hit YouTube once instead of on every keystroke. Thumbnails are resolved at a configurable size instead of the largest variant, which cuts the image payload the browser pulls from Google.
2026-07-20 17:29:28 +02:00
parent 71c45abcf1
commit c302cfd314
5 changed files with 144 additions and 9 deletions
@@ -51,7 +51,10 @@
    "YouTube": {
        "GeographicalLocation": "US",
        "StreamUrlCacheSeconds": 1800,
-        "SearchContinuationCacheSeconds": 600
+        "SearchContinuationCacheSeconds": 600,
+        "SearchResultsCacheSeconds": 900,
+        "SongInfoCacheSeconds": 86400,
+        "ThumbnailSize": 240
    },
    "PlayList": {
        "Routes": {