diff --git a/index.js b/index.js
index d267418..db3b0d9 100644
--- a/index.js
+++ b/index.js
@@ -1,66 +1,51 @@
-const express = require('express');
-const mongoose = require('mongoose');
-const cors = require('cors');
-const morgan = require('morgan');
+const express = require("express");
+const mongoose = require("mongoose");
+const cors = require("cors");
+const morgan = require("morgan");
 
-const appRoute = require('./routes/app.route.js');
+const appRoute = require("./routes/app.route.js");
 
-require('dotenv').config()
+require("dotenv").config();
 const PORT = process.env.PORT || 3000;
 
 const logger = (req, res, next) => {
   console.log(
-    '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
+    "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~",
   );
-  console.log('----------BODY----------');
+  console.log("----------BODY----------");
   console.log(req.body);
   console.log();
-  console.log('----------HEAD----------');
+  console.log("----------HEAD----------");
   console.log(req.headers);
   console.log(
-    '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
+    "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~",
   );
   next();
-}
+};
 
 const app = express();
-app.enable('trust proxy');
-app.disable('x-powered-by');
-app.use(express.json({ limit: '64mb' } ));
+app.enable("trust proxy");
+app.disable("x-powered-by");
+app.use(express.json({ limit: "64mb" }));
 app.use(cors());
 app.use(
   morgan(
-    '[ :method :url ] ~:status | :date[web] | :total-time[digits] ms | IP :remote-addr | :user-agent'
-  )
+    "[ :method :url ] ~:status | :date[web] | :total-time[digits] ms | IP :remote-addr | :user-agent",
+  ),
 );
 app.use(logger, appRoute);
 
-mongoose.connect(process.env.MONGODB_URI).then(() => { console.info('Database connected'); });
+mongoose.connect(process.env.MONGODB_URI).then(() => {
+  console.info("Database connected");
+});
 
-const verifyToken = async (req, res, next) => {
-  const authHeader = req.headers['authorization'];
-  const token = authHeader && authHeader.split(' ')[1];
-
-  if (token == null) return res.sendStatus(401);
-
-  try {
-    const authRecord = await AuthToken.findOne({ auth_token: token });
-    if (!authRecord) return res.sendStatus(403);
-
-    req.address = authRecord.address;
-    req.authType = authRecord.type;
-    next();
-  } catch (error) {
-    return res.sendStatus(403);
-  }
-};
-
-app.get('/api/hello', (req, res) => {
+app.get("/api/hello", (req, res) => {
   res.status(200).json({
-    message: 'Close the world, .txen eht nepO',
-    author: 'Yigid BALABAN <fyb@fybx.dev>',
-    authorHomepage: 'https://fybx.dev/'
-  })
+    message: "Close the world, .txen eht nepO",
+    author: "Yigid BALABAN <fyb@fybx.dev>",
+    authorHomepage: "https://fybx.dev/",
+    thanks: "to Abdullah VELISOY, login.xyz, my family",
+  });
 });
 
 app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
diff --git a/middlewares/auth.middleware.js b/middlewares/auth.middleware.js
new file mode 100644
index 0000000..44ed6a3
--- /dev/null
+++ b/middlewares/auth.middleware.js
@@ -0,0 +1,40 @@
+const { AuthTokens } = require("../models/index.js");
+
+const verifyToken = async (req, res, next) => {
+  const authHeader = req.headers["authorization"];
+
+  if (!authHeader || !authHeader.startsWith("Bearer ")) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+
+  const authToken = authHeader.split(" ")[1];
+
+  try {
+    const tokenRecord = await AuthTokens.findOne({ authToken });
+
+    if (!tokenRecord) {
+      return res.status(401).json({ error: "Unauthorized" });
+    }
+
+    req.tokenRecord = tokenRecord;
+    next();
+  } catch (err) {
+    res.status(500).json({ error: "Internal server error" });
+  }
+};
+
+const editProfile = async (req, res, next) => {
+  const { walletAddress } = req.body;
+  const { tokenRecord } = req;
+
+  if (tokenRecord.walletAddress !== walletAddress) {
+    return res.status(403).json({
+      error:
+        "Forbidden: You are not allowed to edit this account's information.",
+    });
+  }
+
+  next();
+};
+
+module.exports = { verifyToken, editProfile };
diff --git a/models/index.js b/models/index.js
index 28dd555..3e19cfa 100644
--- a/models/index.js
+++ b/models/index.js
@@ -1,29 +1,29 @@
-const mongoose = require('mongoose');
+const mongoose = require("mongoose");
 
 const NonceSchema = new mongoose.Schema({
-  address: String,
+  walletAddress: String,
   nonce: String,
-  type: String,
-  createdAt: { type: Date, expires: 300, default: Date.now }
+  networkType: String,
+  createdAt: { type: Date, expires: 300, default: Date.now },
 });
 
 const AuthTokenSchema = new mongoose.Schema({
-  address: String,
-  auth_token: String,
-  type: String,
-  createdAt: { type: Date, expires: 3600, default: Date.now }
+  walletAddress: String,
+  authToken: String,
+  networkType: String,
+  createdAt: { type: Date, expires: 3600, default: Date.now },
 });
 
 const UserSchema = new mongoose.Schema({
-  address: { type: String, required: true },
+  walletAddress: { type: String, required: true },
   networkType: { type: String, required: true },
-  profileName: { type: String, required: true, default: 'Anonymous' },
-  publicKey: { type: String, required: true, unique: true }
+  profileName: { type: String, required: true, default: "Anonymous" },
+  publicKey: { type: String, required: true, unique: true },
 });
 
-const Nonce = mongoose.model('Nonce', NonceSchema);
-const AuthToken = mongoose.model('AuthToken', AuthTokenSchema);
-const User = mongoose.model('User', UserSchema);
-User.collection.createIndex({ publicKey: 1 }, { unique: true });
+const Nonces = mongoose.model("Nonce", NonceSchema);
+const AuthTokens = mongoose.model("AuthToken", AuthTokenSchema);
+const Users = mongoose.model("User", UserSchema);
+Users.collection.createIndex({ publicKey: 1 }, { unique: true });
 
-module.exports = { Nonce, AuthToken, User };
+module.exports = { Nonces, AuthTokens, Users };
diff --git a/routes/auth.route.js b/routes/auth.route.js
index fb827ba..3711f02 100644
--- a/routes/auth.route.js
+++ b/routes/auth.route.js
@@ -1,100 +1,113 @@
-const express = require('express');
+const express = require("express");
 const router = express.Router({ mergeParams: true });
-const siwe = require('siwe');
-const bs58 = require('bs58');
-const nacl = require('tweetnacl');
+const siwe = require("siwe");
+const bs58 = require("bs58");
+const nacl = require("tweetnacl");
 
-const { Nonce, AuthToken } = require('../models/index.js');
-const { generateNonce, generateBearerToken } = require('../utils/index.js');
+const { verifyToken } = require("../middlewares/auth.middleware.js");
+const { Nonces, AuthTokens } = require("../models/index.js");
+const { generateNonce, generateBearerToken } = require("../utils/index.js");
 
-router.get('/nonce', async (req, res) => {
-  const { address, type } = req.query;
+router.get("/nonce", async (req, res) => {
+  const { address: walletAddress, type: networkType } = req.query;
 
-  if (!address || !type) {
-    return res.status(400).json({ error: 'Missing address or type' });
+  if (!walletAddress || !networkType) {
+    return res
+      .status(400)
+      .json({ error: "Missing walletAddress or networkType" });
   }
 
-  if (type !== 'ethereum' && type !== 'solana') {
-    return res.status(400).json({ error: 'Invalid type. Must be "ethereum" or "solana"' });
+  if (networkType !== "ethereum" && type !== "solana") {
+    return res
+      .status(400)
+      .json({ error: 'Invalid networkType. Must be "ethereum" or "solana"' });
   }
 
   const nonce = generateNonce();
 
   try {
-    await Nonce.findOneAndUpdate(
-      { address, type },
-      { address, nonce, type },
-      { upsert: true, new: true }
+    await Nonces.findOneAndUpdate(
+      { walletAddress, networkType },
+      { walletAddress, nonce, networkType },
+      { upsert: true, new: true },
     );
 
     res.json({ nonce });
   } catch (error) {
-    res.status(500).json({ error: 'Server error' });
+    res.status(500).json({ error: "Server error" });
   }
 });
 
-router.post('/verify', async (req, res) => {
-  const { message, address, signature } = req.body;
+router.post("/verify", async (req, res) => {
+  const { message, walletAddress, signature } = req.body;
 
-  if (!address || !signature) {
-    return res.status(400).json({error: 'Missing address or signature'});
+  if (!walletAddress || !signature) {
+    return res
+      .status(400)
+      .json({ error: "Missing walletAddress or signature" });
   }
 
-  const nonce = await Nonce.findOne({ address }).lean().select('-__v -updatedAt');
-  const type = nonce.type;
+  const nonce = await Nonces.findOne({ walletAddress })
+    .lean()
+    .select("-__v -updatedAt");
+  const networkType = nonce.networkType;
 
   try {
-    if (type === 'ethereum') {
+    if (networkType === "ethereum") {
       if (!message) {
-        return res.status(400).json({ error: 'Missing SiweMessage' });
+        return res.status(400).json({ error: "Missing SiweMessage" });
       }
       const siweMessage = new siwe.SiweMessage(message);
-      const fields = await siweMessage.verify({ signature, nonce: nonce.nonce });
-      if (address == fields.address)
-        throw new Error('Invalid signature');
-    } else if (type === 'solana') {
+      const fields = await siweMessage.verify({
+        signature,
+        nonce: nonce.nonce,
+      });
+      if (walletAddress == fields.walletAddress)
+        throw new Error("Invalid signature");
+    } else if (networkType === "solana") {
       const signatureUint8 = bs58.default.decode(signature);
       const messageUint8 = new TextEncoder().encode(nonce.nonce);
-      const publicKeyUint8 = bs58.default.decode(address);
+      const publicKeyUint8 = bs58.default.decode(walletAddress);
 
-      const isValid = nacl.sign.detached.verify(messageUint8, signatureUint8, publicKeyUint8);
+      const isValid = nacl.sign.detached.verify(
+        messageUint8,
+        signatureUint8,
+        publicKeyUint8,
+      );
       if (!isValid) {
-        throw new Error('Invalid signature');
+        throw new Error("Invalid signature");
       }
     } else {
-      return res.status(400).json({ error: 'Invalid type. Must be "ethereum" or "solana"' });
+      return res
+        .status(400)
+        .json({ error: 'Invalid networkType. Must be "ethereum" or "solana"' });
     }
 
-    const auth_token = generateBearerToken();
+    const authToken = generateBearerToken();
 
-    await AuthToken.findOneAndUpdate(
-      { address, type },
-      { auth_token, createdAt: new Date() },
-      { upsert: true, new: true, setDefaultsOnInsert: true }
+    await AuthTokens.findOneAndUpdate(
+      { walletAddress, networkType },
+      { authToken, createdAt: new Date() },
+      { upsert: true, new: true, setDefaultsOnInsert: true },
     );
-    await Nonce.deleteOne({ address, type });
+    await Nonces.deleteOne({ walletAddress, networkType });
 
-    res.json({ auth_token });
+    res.json({ authToken });
   } catch (error) {
     res.status(400).json({ error: `${error.message}, ${error.stack}` });
   }
 });
 
-router.delete('/auth/signoff', async (req, res) => {
-  const authHeader = req.headers['authorization'];
-  const token = authHeader && authHeader.split(' ')[1];
-
-  if (!token) {
-    return res.status(400).json({ error: 'Missing authorization token in header'});
-  }
-
-  const deletedAuth = AuthToken.findOneAndDelete({ auth_token: token });
+router.delete("/signoff", verifyToken, async (req, res) => {
+  const deletedAuth = AuthTokens.findOneAndDelete({
+    authToken: tokenRecord.authToken,
+  });
 
   if (!deletedAuth) {
-    return res.status(400).json({ error: 'Can\'t log out, not logged in?' });
+    return res.status(400).json({ error: "Can't log out, not logged in?" });
   }
 
-  return res.status(204).json({ error: 'Logged out successfully.' });
+  return res.status(204).json({ error: "Logged out successfully." });
 });
 
 module.exports = router;
diff --git a/routes/users.route.js b/routes/users.route.js
index 577b14f..c13cd75 100644
--- a/routes/users.route.js
+++ b/routes/users.route.js
@@ -1,9 +1,13 @@
-const express = require('express');
+const express = require("express");
 const router = express.Router({ mergeParams: true });
 
-const { User } = require('../models/index.js');
+const { Users } = require("../models/index.js");
+const {
+  verifyToken,
+  editProfile,
+} = require("../middlewares/auth.middleware.js");
 
-router.get('/users', async (req, res) => {
+router.get("/", async (req, res) => {
   const { publicKey, address } = req.query;
 
   try {
@@ -16,59 +20,71 @@ router.get('/users', async (req, res) => {
     }
 
     if (!publicKey && !address) {
-      return res.status(400).json({ error: 'Please provide a publicKey or address to search.' });
+      return res
+        .status(400)
+        .json({ error: "Please provide a publicKey or address to search." });
     }
 
-    const users = await User.find(query);
+    const users = await Users.find(query);
 
     if (users.length === 0) {
-      return res.status(404).json({ error: 'No users found matching the criteria.' });
+      return res
+        .status(404)
+        .json({ error: "No users found matching the criteria." });
     }
 
     res.json(users);
   } catch (err) {
-    res.status(500).json({ error: 'Server error' });
+    res.status(500).json({ error: "Server error" });
   }
 });
 
-router.post('/users', async (req, res) => {
+router.post("/", verifyToken, editProfile, async (req, res) => {
+  const { walletAddress, networkType, profileName, publicKey } = req.body;
+
   try {
-    const user = new User({
-      address: req.body.address,
-      networkType: req.body.networkType,
-      profileName: req.body.profileName || 'Anonymous',
-      publicKey: req.body.publicKey
+    const user = new Users({
+      walletAddress,
+      networkType,
+      profileName,
+      publicKey,
     });
-    
+
     await user.save();
     res.status(201).json(user);
-  } catch (err) {
-    if (err.code === 11000) {
-      return res.status(400).json({ error: 'Public key already exists, are you trying to impersonate someone?' });
+  } catch (error) {
+    if (error.code === 11000) {
+      return res.status(400).json({
+        error:
+          "Public key already exists, are you trying to impersonate someone?",
+      });
     }
-    res.status(500).json({ error: 'Server error' });
+    console.error(error);
+    res.status(500).json({ error });
   }
 });
 
-router.put('/users/:publicKey', async (req, res) => {
+router.put("/:publicKey", verifyToken, editProfile, async (req, res) => {
+  const { walletAddress, networkType, profileName, publicKey } = req.body;
+
   try {
-    const updatedUser = await User.findOneAndUpdate(
-      { publicKey: req.params.publicKey },
+    const updatedUser = await Users.findOneAndUpdate(
+      { publicKey },
       {
-        address: req.body.address,
-        networkType: req.body.networkType,
-        profileName: req.body.profileName
+        walletAddress,
+        networkType,
+        profileName,
       },
-      { new: true }
+      { new: true },
     );
 
     if (!updatedUser) {
-      return res.status(404).json({ error: 'User not found' });
+      return res.status(404).json({ error: "User not found" });
     }
 
     res.json(updatedUser);
-  } catch (err) {
-    res.status(500).json({ error: 'Server error' });
+  } catch (error) {
+    res.status(500).json({ error });
   }
 });