diff --git a/errors/customError.js b/errors/customError.js
new file mode 100644
index 0000000..3182bc2
--- /dev/null
+++ b/errors/customError.js
@@ -0,0 +1,9 @@
+
+class CustomApiError extends Error {
+    constructor (message) {
+        super (message)
+    }
+}
+
+
+module.exports = CustomApiError;
\ No newline at end of file
diff --git a/middlewares/errorHandler.js b/middlewares/errorHandler.js
index ffb3086..ce0f651 100644
--- a/middlewares/errorHandler.js
+++ b/middlewares/errorHandler.js
@@ -1,7 +1,31 @@
+
+
 const errorHandler = (err,req,res,next) =>{
-    return res.status(500).json({
-        message:'Internal server error'
-    });
+    let CustomError = {
+        statusCode :err.statusCode || 500,
+        msg: err.message || 'something went wrong, Please try again'
+    }
+
+    // check and handle validation error
+    if(err.name === 'validation error'){
+        CustomError.msg = Object.values(err.errors).map((item) => item.message.join(','));
+        CustomError.statusCode = 400;
+    }
+
+    // check for duplicate values amd handle the error
+    if(err.code && err.code === 11000){
+        CustomError.msg = `Duplicate value entered for ${Object.keys(err.KeyValue)} field, Please chose another value`;
+        CustomError.statusCode = 400;
+    }
+
+    // check for cast errors or searchs with wrong id and handle the error
+    if(err.name === 'CastError'){
+        CustomError.msg = `No item with such id`;
+        CustomError.statusCode = 400;
+    }
+
+    return res.status(CustomError.statusCode).json({msg: CustomError.msg});
+
 }
 
 
diff --git a/models/favourite.js b/models/favourite.js
index 6fc1387..2e52b57 100644
--- a/models/favourite.js
+++ b/models/favourite.js
@@ -13,5 +13,5 @@ const favouriteSchema = new Schema({
 });
 
 favouriteSchema.index({ user: 1, favourite: 1 }, { unique: true });
-const favourite = mongoose.model("favourite", favouriteSchema);
-module.exports = favourite;
\ No newline at end of file
+// const favourite = mongoose.model("favourite", favouriteSchema);
+module.exports = mongoose.model("favourite", favouriteSchema);
\ No newline at end of file
diff --git a/models/likes.js b/models/likes.js
index 8312fb9..25cbc0d 100644
--- a/models/likes.js
+++ b/models/likes.js
@@ -13,5 +13,5 @@ const likesSchema = new Schema({
 }, { timestamps: true });
 
 likesSchema.index({ user: 1, like: 1 }, { unique: true });
-const ProductLike = mongoose.model("ProductLike", likesSchema);
-module.exports = ProductLike;
\ No newline at end of file
+// const ProductLike = mongoose.model("ProductLike", likesSchema);
+module.exports = mongoose.model("ProductLike", likesSchema);
\ No newline at end of file
diff --git a/models/paystack.js b/models/paystack.js
index 000e2ed..3a4039a 100644
--- a/models/paystack.js
+++ b/models/paystack.js
@@ -27,5 +27,5 @@ const paystackSchema = new Schema({
     deliveryLocation: String
 })
 
-const Paystack = mongoose.model("Paystack", paystackSchema);
-module.exports = Paystack;
\ No newline at end of file
+// const Paystack = mongoose.model("Paystack", paystackSchema);
+module.exports = mongoose.model("Paystack", paystackSchema); // shorter codes like this runs faster.
\ No newline at end of file
diff --git a/models/user.js b/models/user.js
index ee8d4a8..9ebbcdc 100644
--- a/models/user.js
+++ b/models/user.js
@@ -32,5 +32,5 @@ const userSchema = new Schema({
     }
 })
 
-const User = mongoose.model("User", userSchema);
-module.exports = User;
\ No newline at end of file
+// const User = mongoose.model("User", userSchema);
+module.exports = mongoose.model("User", userSchema);
\ No newline at end of file
diff --git a/routes/admin.js b/routes/admin.js
index 7ed90bb..043b645 100644
--- a/routes/admin.js
+++ b/routes/admin.js
@@ -14,8 +14,6 @@ const {
 const { upload } = require('../middlewares/cloudinary')
 const expressBusboy = require('express-busboy')
 
-
-
 router.route('/signup').post(upload.single('picture'), adminSignup)
 expressBusboy.extend(router).route('/signin').post(adminSignIn)
 
diff --git a/routes/index.js b/routes/index.js
index 8228776..be15921 100644
--- a/routes/index.js
+++ b/routes/index.js
@@ -1,8 +1,8 @@
-const express = require("express");
-const router = express.Router();
+// const express = require("express");
+// const router = express.Router();
 
-router.get("/", (req, res) => {
-    res.send("Landing page");
-})
+// router.get("/", (req, res) => {
+//     res.send("Landing page");
+// })
 
-module.exports = router;
\ No newline at end of file
+// module.exports = router;
\ No newline at end of file
diff --git a/server.js b/server.js
index e1336d3..ed2695e 100644
--- a/server.js
+++ b/server.js
@@ -1,4 +1,4 @@
-require('dotenv').config()
+ require('dotenv').config()
 const express = require('express')
 const app = express()
 const { connectDB } = require('./config/database')
@@ -16,7 +16,7 @@ const errorHandler = require('./middlewares/errorHandler')
 app.use(express.json())
 app.use(express.urlencoded({ extended: true }))
 app.use(bodyParser.urlencoded({ extended: true }))
-
+ 
 app.use(cors())
 app.use('/api/v1/', indexRouter)
 app.use('/api/v1/auth/admin', adminRouter)
@@ -28,6 +28,10 @@ app.use('/api/v1/paystack', paystackRouter)
 app.use(NotFound)
 app.use(errorHandler)
 
+app.get('/', (req,res) =>{
+    res.send('<h2>Shooping site API</h2><a href="">Documentation</a>')
+});
+
 const port = process.env.PORT || 3000
 const start = async () => {
   try {
diff --git a/utils/catchAsync.js b/utils/catchAsync.js
index 9a75555..bc35be5 100644
--- a/utils/catchAsync.js
+++ b/utils/catchAsync.js
@@ -1,8 +1,3 @@
-// export default (fn) => {
-// 	return (req, res, next) => {
-// 		fn(req, res, next).catch(next);
-// 	};
-// };
 
 const asyncWrapper = (fn)=>{
 	const x = async(req,res,next) =>{