Update:Encode & embed metadata API endpoints, separate cache & search endpoints into controllers

server/controllers/CacheController.js

@@ -0,0 +1,26 @@
+const Logger = require('../Logger')
+
+class CacheController {
+  constructor() { }
+
+  // POST: api/cache/purge
+  async purgeCache(req, res) {
+    if (!req.user.isAdminOrUp) {
+      return res.sendStatus(403)
+    }
+    Logger.info(`[MiscController] Purging all cache`)
+    await this.cacheManager.purgeAll()
+    res.sendStatus(200)
+  }
+
+  // POST: api/cache/items/purge
+  async purgeItemsCache(req, res) {
+    if (!req.user.isAdminOrUp) {
+      return res.sendStatus(403)
+    }
+    Logger.info(`[MiscController] Purging items cache`)
+    await this.cacheManager.purgeItems()
+    res.sendStatus(200)
+  }
+}
+module.exports = new CacheController()