diff --git a/index.js b/index.js
index 601f5e3d9315baf3836bde42fdc6596446a69cb5..c429640161297a29d4d53d64022b2dde0000f2b4 100644
--- a/index.js
+++ b/index.js
@@ -5,9 +5,14 @@ const ip = require('ip');
 const app = express();
 const server = http.createServer(app);
 const fs = require('fs')
+const bodyParser = require('body-parser');
 
 app.use(express.static(path.join(__dirname, 'public')));
 app.use(express.json()); // Use express.json() to parse JSON bodies
+app.use(bodyParser.json({ limit: '5mb' })); // Set maximum payload size to 5 MB
+app.use(bodyParser.urlencoded({ extended: true, limit: '5mb' }));
+
+
  // Use body-parser to parse plain text request bodies
 
 const connectedDevices = {};
@@ -83,9 +88,11 @@ app.post('/am-i-ok/:deviceID', (req, res) => {
     console.log('Sent JSON:', responseToSend);
 });
 
-app.post('/json/:deviceID', (req, res) => {
+app.post('/json/:deviceID/:f_n', (req, res) => {
     const deviceID = req.params.deviceID;
+    const f_n = req.params.f_n;
     console.log(`Json incoming form: ${deviceID}`)
+    console.log(`Json incoming form: ${f_n}`)
     let responseToSend
 
     const measurementsFolderPath = path.join(__dirname, 'measurements', deviceID);
@@ -98,13 +105,13 @@ app.post('/json/:deviceID', (req, res) => {
     // Get filename from request body
     console.log("The body of the request is:")
     console.log(req.body)
-    console.log("The paramteres are:")
+    console.log("The parameters are:")
     console.log(req.params)
     const { filename, ...jsonData } = req.body;
-    console.log("The filename shold be:", filename)
+    console.log(`The filename should be: ${filename}`)
 
     // Generate unique filename if not provided
-    const fileName = filename || deviceID + '.json';
+    const fileName = f_n + '.json' || deviceID + '.json';
 
     // Path to save the file
     const filePath = path.join(measurementsFolderPath, fileName);
diff --git a/package-lock.json b/package-lock.json
index 6d12f6a098da0b056474f5daeb930dbad2a2f1c3..645cb9920cc4fcb2a29bc13d4234bbf787690cfd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "body-parser": "^1.20.2",
         "express": "^4.18.2",
         "ip": "^1.1.8",
         "node-arp": "^1.0.6",
@@ -46,12 +47,12 @@
       "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg=="
     },
     "node_modules/body-parser": {
-      "version": "1.20.1",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
-      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+      "version": "1.20.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
+      "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
       "dependencies": {
         "bytes": "3.1.2",
-        "content-type": "~1.0.4",
+        "content-type": "~1.0.5",
         "debug": "2.6.9",
         "depd": "2.0.0",
         "destroy": "1.2.0",
@@ -59,7 +60,7 @@
         "iconv-lite": "0.4.24",
         "on-finished": "2.4.1",
         "qs": "6.11.0",
-        "raw-body": "2.5.1",
+        "raw-body": "2.5.2",
         "type-is": "~1.6.18",
         "unpipe": "1.0.0"
       },
@@ -226,6 +227,43 @@
         "node": ">= 0.10.0"
       }
     },
+    "node_modules/express/node_modules/body-parser": {
+      "version": "1.20.1",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
+      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.11.0",
+        "raw-body": "2.5.1",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/express/node_modules/raw-body": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
+      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
@@ -557,9 +595,9 @@
       }
     },
     "node_modules/raw-body": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
-      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.2.tgz",
+      "integrity": "sha512-8zGqypfENjCIqGhgXToC8aB2r7YrBX+AQAfIPs/Mlk+BtPTztOvTS01NRW/3Eh60J+a48lt8qsCzirQ6loCVfA==",
       "dependencies": {
         "bytes": "3.1.2",
         "http-errors": "2.0.0",
@@ -751,12 +789,12 @@
       "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg=="
     },
     "body-parser": {
-      "version": "1.20.1",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
-      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+      "version": "1.20.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
+      "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
       "requires": {
         "bytes": "3.1.2",
-        "content-type": "~1.0.4",
+        "content-type": "~1.0.5",
         "debug": "2.6.9",
         "depd": "2.0.0",
         "destroy": "1.2.0",
@@ -764,7 +802,7 @@
         "iconv-lite": "0.4.24",
         "on-finished": "2.4.1",
         "qs": "6.11.0",
-        "raw-body": "2.5.1",
+        "raw-body": "2.5.2",
         "type-is": "~1.6.18",
         "unpipe": "1.0.0"
       }
@@ -891,6 +929,38 @@
         "type-is": "~1.6.18",
         "utils-merge": "1.0.1",
         "vary": "~1.1.2"
+      },
+      "dependencies": {
+        "body-parser": {
+          "version": "1.20.1",
+          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
+          "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+          "requires": {
+            "bytes": "3.1.2",
+            "content-type": "~1.0.4",
+            "debug": "2.6.9",
+            "depd": "2.0.0",
+            "destroy": "1.2.0",
+            "http-errors": "2.0.0",
+            "iconv-lite": "0.4.24",
+            "on-finished": "2.4.1",
+            "qs": "6.11.0",
+            "raw-body": "2.5.1",
+            "type-is": "~1.6.18",
+            "unpipe": "1.0.0"
+          }
+        },
+        "raw-body": {
+          "version": "2.5.1",
+          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
+          "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+          "requires": {
+            "bytes": "3.1.2",
+            "http-errors": "2.0.0",
+            "iconv-lite": "0.4.24",
+            "unpipe": "1.0.0"
+          }
+        }
       }
     },
     "extend": {
@@ -1133,9 +1203,9 @@
       "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
     },
     "raw-body": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
-      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.2.tgz",
+      "integrity": "sha512-8zGqypfENjCIqGhgXToC8aB2r7YrBX+AQAfIPs/Mlk+BtPTztOvTS01NRW/3Eh60J+a48lt8qsCzirQ6loCVfA==",
       "requires": {
         "bytes": "3.1.2",
         "http-errors": "2.0.0",
diff --git a/package.json b/package.json
index 23102d42387418a91bd445af69dfa1d47255c72b..ab7d6f24d432792afc949b6d12f6bd02a1c36c30 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "body-parser": "^1.20.2",
     "express": "^4.18.2",
     "ip": "^1.1.8",
     "node-arp": "^1.0.6",