diff --git a/app/http/middleware/userAuth.go b/app/http/middleware/userAuth.go
new file mode 100644
index 0000000..caebfc6
--- /dev/null
+++ b/app/http/middleware/userAuth.go
@@ -0,0 +1,37 @@
+package middleware
+
+import (
+	"github.com/Firdavs9512/qk-server/app/models"
+	"github.com/Firdavs9512/qk-server/config"
+	"github.com/kataras/iris/v12"
+)
+
+type RequestHeader struct {
+	Authorization string `header:"Authorization,required"`
+}
+
+func UserAuthMiddleware() iris.Handler {
+	return func(ctx iris.Context) {
+		var requestHeader RequestHeader
+		if err := ctx.ReadHeaders(&requestHeader); err != nil {
+			ctx.StatusCode(iris.StatusBadRequest)
+			ctx.JSON(iris.Map{"message": "Invalid request"})
+			return
+		}
+
+		if requestHeader.Authorization == "" {
+			ctx.StatusCode(iris.StatusUnauthorized)
+			ctx.JSON(iris.Map{"message": "Unauthorized"})
+			return
+		}
+
+		var token models.AuthToken
+		if err := config.Database.DB.Where("token = ?", requestHeader.Authorization).First(&token).Error; err != nil {
+			ctx.StatusCode(iris.StatusUnauthorized)
+			ctx.JSON(iris.Map{"message": "Unauthorized"})
+			return
+		}
+
+		ctx.Next()
+	}
+}
diff --git a/app/http/server.go b/app/http/server.go
index e0c430b..a53a257 100644
--- a/app/http/server.go
+++ b/app/http/server.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"github.com/Firdavs9512/qk-server/app/http/controllers"
+	"github.com/Firdavs9512/qk-server/app/http/middleware"
 	"github.com/Firdavs9512/qk-server/config"
 	"github.com/kataras/iris/v12"
 	"github.com/kataras/iris/v12/mvc"
@@ -19,6 +20,7 @@ func (s *Server) Start() {
 
 	// Configure
 	Application.Use(iris.LimitRequestBodySize(config.App.MaxFileSize))
+	Application.Use(middleware.UserAuthMiddleware())
 
 	Application.Get("/", func(ctx iris.Context) {
 		ctx.JSON(iris.Map{"message": "Ok!"})
diff --git a/app/models/AuthTokens.go b/app/models/AuthTokens.go
new file mode 100644
index 0000000..67d05da
--- /dev/null
+++ b/app/models/AuthTokens.go
@@ -0,0 +1,9 @@
+package models
+
+import "gorm.io/gorm"
+
+type AuthToken struct {
+	gorm.Model
+	Name  string
+	Token string
+}
diff --git a/config/database.go b/config/database.go
index aa2ec0b..4aeaa9d 100644
--- a/config/database.go
+++ b/config/database.go
@@ -3,7 +3,6 @@ package config
 import (
 	"fmt"
 
-	"github.com/Firdavs9512/qk-server/app/models"
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 )
@@ -43,8 +42,5 @@ func (d *DatabaseType) Init() {
 		panic("failed to connect database")
 	}
 
-	// Migrate the schema
-	d.DB.AutoMigrate(&models.Files{}, &models.Settings{})
-
 	fmt.Println("Database connected!")
 }
diff --git a/core/configInit.go b/core/configInit.go
index bea6a0c..5bd64b9 100644
--- a/core/configInit.go
+++ b/core/configInit.go
@@ -1,11 +1,15 @@
 package core
 
 import (
+	"fmt"
 	"strconv"
 
 	"github.com/Firdavs9512/qk-server/app/http"
 	"github.com/Firdavs9512/qk-server/app/models"
 	"github.com/Firdavs9512/qk-server/config"
+	"github.com/Firdavs9512/qk-server/utils"
+	"github.com/fatih/color"
+	"gorm.io/gorm"
 )
 
 // Local config files initialization in database
@@ -18,8 +22,8 @@ func ConfigInit() {
 
 	// Application host
 	var host *models.Settings
-	config.Database.DB.Where("key = ?", "app_host").First(&host)
-	if host == nil {
+	hResult := config.Database.DB.Where("key = ?", "app_host").First(&host)
+	if hResult.Error == gorm.ErrRecordNotFound {
 		config.Database.DB.Create(&models.Settings{
 			Key:   "app_host",
 			Value: config.App.AppHost,
@@ -31,8 +35,8 @@ func ConfigInit() {
 
 	// Application port
 	var port *models.Settings
-	config.Database.DB.Where("key = ?", "app_port").First(&port)
-	if port == nil {
+	pResult := config.Database.DB.Where("key = ?", "app_port").First(&port)
+	if pResult.Error == gorm.ErrRecordNotFound {
 		config.Database.DB.Create(&models.Settings{
 			Key:   "app_port",
 			Value: strconv.Itoa(config.App.AppPort),
@@ -48,8 +52,8 @@ func ConfigInit() {
 
 	// Application version
 	var version *models.Settings
-	config.Database.DB.Where("key = ?", "app_version").First(&version)
-	if version == nil {
+	vResult := config.Database.DB.Where("key = ?", "app_version").First(&version)
+	if vResult.Error == gorm.ErrRecordNotFound {
 		config.Database.DB.Create(&models.Settings{
 			Key:   "app_version",
 			Value: config.App.Version,
@@ -61,8 +65,8 @@ func ConfigInit() {
 
 	// Application Upload URL
 	var uploadUrl *models.Settings
-	config.Database.DB.Where("key = ?", "upload_url").First(&uploadUrl)
-	if uploadUrl == nil {
+	uResult := config.Database.DB.Where("key = ?", "upload_url").First(&uploadUrl)
+	if uResult.Error == gorm.ErrRecordNotFound {
 		config.Database.DB.Create(&models.Settings{
 			Key:   "upload_url",
 			Value: config.App.UploadUrl,
@@ -72,6 +76,19 @@ func ConfigInit() {
 		appConfig.UploadUrl = uploadUrl.Value
 	}
 
+	// Check auth token if not exists create one
+	var count int64
+	config.Database.DB.Model(&models.AuthToken{}).Count(&count)
+	if count == 0 {
+		token := utils.RandomString(32)
+		config.Database.DB.Create(&models.AuthToken{
+			Token: token,
+			Name:  "Default",
+		})
+
+		fmt.Printf("Default Auth Token: %s\n", color.HiYellowString(token))
+	}
+
 	// Set the new config
 	config.App = appConfig
 
diff --git a/core/installation.go b/core/installation.go
index 99d8030..a22d64f 100644
--- a/core/installation.go
+++ b/core/installation.go
@@ -10,6 +10,11 @@ import (
 func StartInitiation() {
 	// Init database
 	config.Database.Init()
+	// Migrate database models
+	Migrate()
+
+	// Init config
+	ConfigInit()
 
 	// Init file directory
 	InitDirectory()
diff --git a/core/migration.go b/core/migration.go
new file mode 100644
index 0000000..b739c51
--- /dev/null
+++ b/core/migration.go
@@ -0,0 +1,14 @@
+package core
+
+import (
+	"github.com/Firdavs9512/qk-server/app/models"
+	"github.com/Firdavs9512/qk-server/config"
+)
+
+func Migrate() {
+	config.Database.DB.AutoMigrate(
+		&models.AuthToken{},
+		&models.Settings{},
+		&models.Files{},
+	)
+}
diff --git a/test/database/FilesModel_test.go b/test/database/FilesModel_test.go
index 48ce181..6c7b683 100644
--- a/test/database/FilesModel_test.go
+++ b/test/database/FilesModel_test.go
@@ -5,11 +5,15 @@ import (
 	"testing"
 
 	"github.com/Firdavs9512/qk-server/config"
+	"github.com/Firdavs9512/qk-server/core"
 )
 
 func TestFilesModel(t *testing.T) {
 	config.Database.Init()
 
+	// Migrate database models
+	core.Migrate()
+
 	// Files model exists
 	if !config.Database.DB.Migrator().HasTable("files") {
 		t.Errorf("Table files does not exist")
diff --git a/utils/randomGenerator.go b/utils/randomGenerator.go
new file mode 100644
index 0000000..0b7cf38
--- /dev/null
+++ b/utils/randomGenerator.go
@@ -0,0 +1,12 @@
+package utils
+
+import "math/rand"
+
+func RandomString(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)
+}