diff --git a/.gitignore b/.gitignore
index b512c09..a2e04e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-node_modules
\ No newline at end of file
+node_modules
+
+.env
\ No newline at end of file
diff --git a/constant.js b/constant.js
new file mode 100644
index 0000000..7c43dfe
--- /dev/null
+++ b/constant.js
@@ -0,0 +1,5 @@
+const REGISTER_URL = "/user/register"
+
+module.exports = {
+    REGISTER_URL
+}
\ No newline at end of file
diff --git a/controllers/userController.js b/controllers/userController.js
index 780c3c7..443e82f 100644
--- a/controllers/userController.js
+++ b/controllers/userController.js
@@ -3,16 +3,11 @@ const bcrypt = require("bcryptjs");
 
 
 
-
 const register_user= async (req,res)=>{
     try {
             const salt = 10;
             const spassword = await bcrypt.hash(req.body.password,salt);
-            const userData=await users.findOne({email:req.body.email})
-            // console.log(userData,"==");
-            if(userData){
-                return res.status(209).send({success:false,msg:"Email already exist"})
-             }else{
+
             let user = new users({
                 username:req.body.username,
                 firstname:req.body.firstname,
@@ -25,9 +20,9 @@ const register_user= async (req,res)=>{
             });
             const user_data = await user.save();
             return res.status(200).send({success:true,data:user_data})
-        }
+            
     } catch (error) {
-        res.status(400).send(error.message)
+        res.status(400).send({success:false,error:error.message})
     }
 }
 
diff --git a/index.js b/index.js
index e6ff7dd..e7a8534 100644
--- a/index.js
+++ b/index.js
@@ -1,3 +1,4 @@
+require("dotenv").config()
 const express = require("express");
 const app = express();
 
@@ -5,9 +6,9 @@ require("./dbconnection");
 app.use(express.json())
 const userRoute = require("./routes/register");
 
-app.use("/user/register", userRoute)
+app.use("/user", userRoute)
 
 
-app.listen(3005,()=>{
+app.listen(process.env.PORT_NO,()=>{
     console.log("server is running on port 3005");
 })
\ No newline at end of file
diff --git a/middleware/mid_register.js b/middleware/mid_register.js
new file mode 100644
index 0000000..6ca4436
--- /dev/null
+++ b/middleware/mid_register.js
@@ -0,0 +1,13 @@
+const mongoose = require("mongoose");
+const users = mongoose.model("users" );
+const REG_MIDDLE=async (req,res,next) => {
+    const userData=await users.findOne({email:req.body.email})
+
+            if(userData){
+                return res.status(409).send({success:false,msg:"Email already exist"})
+            }else{
+                next(); 
+            }
+}
+
+module.exports=REG_MIDDLE
diff --git a/node_modules/.package-lock.json b/node_modules/.package-lock.json
index acdca54..5eda5d6 100644
--- a/node_modules/.package-lock.json
+++ b/node_modules/.package-lock.json
@@ -383,6 +383,17 @@
         "node": ">=8"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/motdotla/dotenv?sponsor=1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
diff --git a/package-lock.json b/package-lock.json
index e18ea03..d0d5b14 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,7 @@
       "dependencies": {
         "bcrypt": "^5.1.1",
         "bcryptjs": "^2.4.3",
+        "dotenv": "^16.3.1",
         "express": "^4.18.2",
         "mongoose": "^7.6.3",
         "nodemon": "^3.0.1"
@@ -395,6 +396,17 @@
         "node": ">=8"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/motdotla/dotenv?sponsor=1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -2063,6 +2075,11 @@
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.2.tgz",
       "integrity": "sha512-UX6sGumvvqSaXgdKGUsgZWqcUyIXZ/vZTrlRT/iobiKhGL0zL4d3osHj3uqllWJK+i+sixDS/3COVEOFbupFyw=="
     },
+    "dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ=="
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
diff --git a/package.json b/package.json
index 001f6e8..2f4a3a7 100644
--- a/package.json
+++ b/package.json
@@ -5,13 +5,14 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "dev":"nodemon index.js"
+    "dev": "nodemon index.js"
   },
   "author": "",
   "license": "ISC",
   "dependencies": {
     "bcrypt": "^5.1.1",
     "bcryptjs": "^2.4.3",
+    "dotenv": "^16.3.1",
     "express": "^4.18.2",
     "mongoose": "^7.6.3",
     "nodemon": "^3.0.1"
diff --git a/routes/register.js b/routes/register.js
index 3fcc9bc..9e8bc3a 100644
--- a/routes/register.js
+++ b/routes/register.js
@@ -1,8 +1,11 @@
 const express = require("express");
+const register_user = require("../controllers/userController");
 const router = express.Router();
 
-const Controller = require("../controllers/userController");
 
-router.post("/",Controller);
+
+const mid_register = require("../middleware/mid_register");
+
+router.post("/register",mid_register,register_user);
 
 module.exports=router;
\ No newline at end of file