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* fix(server): prevent artwork throttle token starvation on slow clients Replace Chi's ThrottleBacklog middleware for artwork endpoints with a custom RequestThrottle that releases processing tokens before writing the HTTP response. Previously, a slow or stalled client could hold a throttle token indefinitely during io.Copy, exhausting all 2-4 slots and blocking artwork requests for all users (reported after 15+ days uptime). The new approach buffers artwork into memory while holding the token, releases it immediately, then writes the buffered response. A 30-second per-request write deadline (SetWriteTimeout) prevents stalled writes from blocking indefinitely. Throttle exhaustion is now logged with context for operator visibility. * refactor(server): simplify throttle to middleware with same API as Chi Restructure RequestThrottle from a DI-injected type into a drop-in middleware function with the same signature as Chi's ThrottleBacklog. Handlers are reverted to their original simple form (no throttle awareness), and the middleware is applied at route definition time just like before. This eliminates the DI dependency, removes the artworkThrottle field from both Router structs, and consolidates SetWriteTimeout into the throttle file. When limit <= 0, the middleware returns a passthrough so callers don't need a guard. Signed-off-by: Deluan <deluan@navidrome.org> * feat(server): add opt-out flag for buffered artwork throttle Add DevArtworkThrottleBuffered config (default true) that controls whether the new buffered ThrottleBacklog middleware is used. When set to false, it falls back to Chi's original middleware, giving users a safety valve in case the buffered implementation causes issues. Signed-off-by: Deluan <deluan@navidrome.org> * test(server): clean up throttle tests for clarity and speed Consolidate duplicate router setup into runTwoRequests() and slowClientTest() helpers. Replace time.Sleep-based token holding with channel synchronization, reducing suite time from ~7s to ~1.5s. Remove redundant test, fix duplicate comment block, and add comment explaining why slowTestWriter can't embed httptest.ResponseRecorder. * fix: release artwork throttle tokens on panic Defer the buffered artwork throttle release inside the handler closure so tokens are returned even when a downstream handler panics before response flushing. Document that the middleware buffers full responses in memory and add a regression test covering recovery after a panic. * fix: align buffered throttle response behavior Keep only the first status code written to the buffered artwork throttle response writer so it matches net/http semantics. Strengthen the opt-out test to verify DevArtworkThrottleBuffered=false uses Chi's original slow-client behavior instead of only checking shared 429 handling. * refactor(server): remove setWriteTimeout from throttle middleware SetWriteDeadline only constrains the server's Write syscall, not how fast the client reads from the TCP buffer. For artwork-sized responses (up to ~500KB), the kernel accepts the entire write immediately even over real network interfaces due to TCP buffer auto-tuning. Verified by testing with a stalled client over both loopback and en0 — the deadline never triggers. The actual protection comes from buffering + early token release, which is already in place. --------- Signed-off-by: Deluan <deluan@navidrome.org>
Navidrome Music Server 
Navidrome is an open source web-based music collection server and streamer. It gives you freedom to listen to your music collection from any browser or mobile device. It's like your personal Spotify!
Note: The master branch may be in an unstable or even broken state during development.
Please use releases instead of
the master branch in order to get a stable set of binaries.
Check out our Live Demo!
Any feedback is welcome! If you need/want a new feature, find a bug or think of any way to improve Navidrome, please file a GitHub issue or join the discussion in our Subreddit. If you want to contribute to the project in any other way (ui/backend dev, translations, themes), please join the chat in our Discord server.
Installation
See instructions on the project's website
Cloud Hosting
PikaPods has partnered with us to offer you an officially supported, cloud-hosted solution. A share of the revenue helps fund the development of Navidrome at no additional cost for you.
Features
- Handles very large music collections
- Streams virtually any audio format available
- Reads and uses all your beautifully curated metadata
- Great support for compilations (Various Artists albums) and box sets (multi-disc albums)
- Multi-user, each user has their own play counts, playlists, favourites, etc...
- Very low resource usage
- Multi-platform, runs on macOS, Linux and Windows. Docker images are also provided
- Ready to use binaries for all major platforms, including Raspberry Pi
- Automatically monitors your library for changes, importing new files and reloading new metadata
- Themeable, modern and responsive Web interface based on Material UI
- Compatible with all Subsonic/Madsonic/Airsonic clients
- Transcoding on the fly. Can be set per user/player. Opus encoding is supported
- Translated to various languages
Translations
Navidrome uses POEditor for translations, and we are always looking for more contributors
Documentation
All documentation can be found in the project's website: https://www.navidrome.org/docs. Here are some useful direct links:
Screenshots
