Added library mixin to YTMusic and Jellyfin

src/routes/api/users/[userId]/library/albums/+server.ts

@@ -0,0 +1,13 @@
+import type { RequestHandler } from '@sveltejs/kit'
+import { Connections } from '$lib/server/connections'
+
+export const GET: RequestHandler = async ({ params }) => {
+    const userId = params.userId!
+
+    const userConnections = Connections.getUserConnections(userId)
+    if (!userConnections) return new Response('Invalid user id', { status: 400 })
+
+    const items = (await Promise.all(userConnections.map((connection) => connection.library.albums()))).flat()
+
+    return Response.json({ items })
+}

src/routes/api/users/[userId]/library/artists/+server.ts

@@ -0,0 +1,13 @@
+import type { RequestHandler } from '@sveltejs/kit'
+import { Connections } from '$lib/server/connections'
+
+export const GET: RequestHandler = async ({ params }) => {
+    const userId = params.userId!
+
+    const userConnections = Connections.getUserConnections(userId)
+    if (!userConnections) return new Response('Invalid user id', { status: 400 })
+
+    const items = (await Promise.all(userConnections.map((connection) => connection.library.artists()))).flat()
+
+    return Response.json({ items })
+}

src/routes/api/users/[userId]/library/playlists/+server.ts

@@ -0,0 +1,13 @@
+import type { RequestHandler } from '@sveltejs/kit'
+import { Connections } from '$lib/server/connections'
+
+export const GET: RequestHandler = async ({ params }) => {
+    const userId = params.userId!
+
+    const userConnections = Connections.getUserConnections(userId)
+    if (!userConnections) return new Response('Invalid user id', { status: 400 })
+
+    const items = (await Promise.all(userConnections.map((connection) => connection.library.playlists()))).flat()
+
+    return Response.json({ items })
+}