delete old documents

Author: AlexandreDewilde

src/db/MongoDB.js

@@ -158,6 +158,11 @@ class MongoDB {
         this.changeParam(documentLink, 'lastViewedDate', Date.now());
     }
 
+    async deleteOldDocuments(days=2) {
+        const oldTimestamp = Date.now() - 1000 * 60 * 60 * 24 * days;
+        this.documentsCollection.deleteMany({'lastViewedDate': {$lt : oldTimestamp} });
+    }
+
     async applyRequests (documentLink, requests) {
         // TODO look to use bulk write
         try {

src/socket/socket.js

@@ -156,5 +156,10 @@ module.exports = function (wss) {
 		prom.connected.set(wss.clients.size);
 	}, 5000);
 
+	// delete old documents
+	setInterval(() => {
+		db.deleteOldDocuments();
+	}, 1000 * 60 * 60 * 24);
+
 
 }