diff --git a/swarmlab-app/package.json b/swarmlab-app/package.json
index d2cc99f..c597da1 100644
--- a/swarmlab-app/package.json
+++ b/swarmlab-app/package.json
@@ -10,6 +10,7 @@
   "license": "MIT",
   "dependencies": {
     "axios": "^0.21.0",
+    "mongodb": "^3.6.3",
     "cors": "^2.8.5",
     "express": "^4.17.1",
     "helmet": "^4.2.0",
diff --git a/swarmlab-app/src/run/app.js b/swarmlab-app/src/run/app.js
index b294628..dcebffc 100644
--- a/swarmlab-app/src/run/app.js
+++ b/swarmlab-app/src/run/app.js
@@ -2,6 +2,7 @@ var path = require('path');
 var app = require('express')();
 var http = require('http').Server(app);
 var io = require('socket.io')(http);
+vat MongoClient = require('mongodb').MongoClient;
 
 //const socketAuth = require('socketio-auth');
 
@@ -63,7 +64,45 @@ cors(corsOptions),  (req, res, next) => {
       res.json(RES)
 });
 
-                                     
+// ------------------------------------------------
+var mongouser = "playgrounduser";
+var mongopass = "efvvnuioervefSDFSGYGHRDFVsdfergvssppiiedifhwincvinviw_dbfjbsifbsdkjfswuunscfudfgbbfvibqefwrvnine";
+const mongourl = 'mongodb://'+mongouser+':'+mongopass+'@node1:27017,node2:27017/?replicaSet=rs0';
+const dbNameedit = 'swarmlab_playground_logs';
+var dbName;
+// Initialize connection once
+MongoClient.connect(mongourl, function(err, database) {
+  if(err) throw err;
+  //dbName = database;
+  dbName = dayabase.db('swarmlab_playground_logs');
+});
+
+
+  dbName.collection("devel_log").find({}, function(err, docs) {
+
+docs.each(function(err, doc) {
+      if(doc) {
+        console.log(doc);
+      }
+      else {
+        res.end();
+      }
+    });
+
+
+
+  });
+
+/*
+MongoClient.connect(mongourl, options).then((client) => {
+    dbName = client.db('swarmlab_playground_logs');
+    // do database things
+}).catch((error) => {
+    // handle connection errors
+});
+*/
+
+
 io.origins('*:*') // for latest version  
 
 io.on('connection', s => {