diff --git a/action.go b/action.go
index 5608282..64d3acb 100644
--- a/action.go
+++ b/action.go
@@ -1,16 +1,16 @@
 package usermngmt
 
 import (
-	"github.com/Selly-Modules/usermngmt/internal/model"
+	"github.com/Selly-Modules/usermngmt/model"
 )
 
 // Create ...
-func (s Service) Create(payload model.CreateOptions) error {
+func (s Service) Create(payload model.UserCreateOptions) error {
 	return s.handler.User.Create(payload)
 }
 
 // Update ...
-func (s Service) Update(userID string, payload model.UpdateOptions) error {
+func (s Service) Update(userID string, payload model.UserUpdateOptions) error {
 	return s.handler.User.UpdateByUserID(userID, payload)
 }
 
@@ -23,7 +23,7 @@ func (s Service) ChangeUserStatus(userID, newStatus string) error {
 	return s.handler.User.ChangeUserStatus(userID, newStatus)
 }
 
-func (s Service) All(query model.AllQuery) model.UserAll {
+func (s Service) All(query model.UserAllQuery) model.UserAll {
 	return s.handler.User.All(query)
 }
 
diff --git a/constant.go b/constant.go
index 4252788..fe98da9 100644
--- a/constant.go
+++ b/constant.go
@@ -2,7 +2,5 @@ package usermngmt
 
 // Constant ...
 const (
-	tableUser          = "users"
-	tableRole          = "roles"
 	tablePrefixDefault = "usermngmt"
 )
diff --git a/database/db.go b/database/db.go
new file mode 100644
index 0000000..6f30c60
--- /dev/null
+++ b/database/db.go
@@ -0,0 +1,31 @@
+package database
+
+import (
+	"fmt"
+
+	"go.mongodb.org/mongo-driver/mongo"
+)
+
+// Table
+var (
+	tableUser = "users"
+	tableRole = "roles"
+)
+
+var (
+	db     *mongo.Database
+	prefix string
+)
+
+func Set(instance *mongo.Database, tablePrefix string) {
+	db = instance
+	prefix = tablePrefix
+}
+
+func GetUserCol() *mongo.Collection {
+	return db.Collection(fmt.Sprintf("%s-%s", prefix, tableUser))
+}
+
+func GetRoleCol() *mongo.Collection {
+	return db.Collection(fmt.Sprintf("%s-%s", prefix, tableRole))
+}
diff --git a/db.go b/db.go
deleted file mode 100644
index 2b765fe..0000000
--- a/db.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package usermngmt
-
-import (
-	"fmt"
-
-	"go.mongodb.org/mongo-driver/mongo"
-)
-
-//  getCollectionName ...
-func (s Service) getCollectionName(tablePrefix, table string) *mongo.Collection {
-	return s.db.Collection(fmt.Sprintf("%s-%s", tablePrefix, table))
-}
diff --git a/internal/model/db.go b/model/db.go
similarity index 100%
rename from internal/model/db.go
rename to model/db.go
diff --git a/internal/model/query.go b/model/query.go
similarity index 100%
rename from internal/model/query.go
rename to model/query.go
diff --git a/model/role_request.go b/model/role_request.go
new file mode 100644
index 0000000..db992a0
--- /dev/null
+++ b/model/role_request.go
@@ -0,0 +1,7 @@
+package model
+
+// RoleCreateOptions ...
+type RoleCreateOptions struct {
+	Name string
+}
+
diff --git a/internal/model/role.go b/model/role_response.go
similarity index 63%
rename from internal/model/role.go
rename to model/role_response.go
index 1f381b1..0c84d23 100644
--- a/internal/model/role.go
+++ b/model/role_response.go
@@ -4,9 +4,4 @@ type RoleShort struct {
 	ID      string `json:"_id"`
 	Name    string `json:"name"`
 	IsAdmin bool   `json:"isAdmin"`
-}
-
-// RoleCreateOptions ...
-type RoleCreateOptions struct {
-	Name string
-}
+}
\ No newline at end of file
diff --git a/internal/model/user.go b/model/user_request.go
similarity index 78%
rename from internal/model/user.go
rename to model/user_request.go
index 34562a2..d27b3f1 100644
--- a/internal/model/user.go
+++ b/model/user_request.go
@@ -2,13 +2,12 @@ package model
 
 import (
 	"errors"
-	"time"
 
 	"github.com/Selly-Modules/logger"
 )
 
-// CreateOptions ...
-type CreateOptions struct {
+// UserCreateOptions ...
+type UserCreateOptions struct {
 	Name     string
 	Phone    string
 	Email    string
@@ -18,8 +17,8 @@ type CreateOptions struct {
 	Other    string
 }
 
-// UpdateOptions ...
-type UpdateOptions struct {
+// UserUpdateOptions ...
+type UserUpdateOptions struct {
 	Name   string
 	Phone  string
 	Email  string
@@ -33,8 +32,8 @@ type ChangePasswordOptions struct {
 	NewPassword string
 }
 
-// AllQuery ...
-type AllQuery struct {
+// UserAllQuery ...
+type UserAllQuery struct {
 	Page    int64
 	Limit   int64
 	Keyword string
@@ -42,29 +41,8 @@ type AllQuery struct {
 	Status  string
 }
 
-// User ...
-type User struct {
-	ID        string    `json:"_id"`
-	Name      string    `json:"name"`
-	Phone     string    `json:"phone"`
-	Email     string    `json:"email"`
-	Status    string    `json:"status"`
-	Role      RoleShort `json:"role"`
-	Other     string    `json:"other"`
-	CreatedAt time.Time `json:"createdAt"`
-	UpdatedAt time.Time `json:"updatedAt"`
-}
-
-type (
-	// UserAll ...
-	UserAll struct {
-		List  []User `json:"list"`
-		Total int64  `json:"total"`
-	}
-)
-
 // Validate ...
-func (co CreateOptions) Validate() error {
+func (co UserCreateOptions) Validate() error {
 	// Name
 	if co.Name == "" {
 		logger.Error("usermngmt - Create: no Name data", logger.LogData{
@@ -117,7 +95,7 @@ func (co CreateOptions) Validate() error {
 }
 
 // Validate ...
-func (uo UpdateOptions) Validate() error {
+func (uo UserUpdateOptions) Validate() error {
 	// Name
 	if uo.Name == "" {
 		logger.Error("usermngmt - Update: no name data", logger.LogData{
diff --git a/model/user_response.go b/model/user_response.go
new file mode 100644
index 0000000..5344b7b
--- /dev/null
+++ b/model/user_response.go
@@ -0,0 +1,26 @@
+package model
+
+import (
+	"time"
+)
+
+// User ...
+type User struct {
+	ID        string    `json:"_id"`
+	Name      string    `json:"name"`
+	Phone     string    `json:"phone"`
+	Email     string    `json:"email"`
+	Status    string    `json:"status"`
+	Role      RoleShort `json:"role"`
+	Other     string    `json:"other"`
+	CreatedAt time.Time `json:"createdAt"`
+	UpdatedAt time.Time `json:"updatedAt"`
+}
+
+type (
+	// UserAll ...
+	UserAll struct {
+		List  []User `json:"list"`
+		Total int64  `json:"total"`
+	}
+)
diff --git a/role/db.go b/role/db.go
index bf98c99..3871ac4 100644
--- a/role/db.go
+++ b/role/db.go
@@ -3,7 +3,8 @@ package role
 import (
 	"context"
 
-	"github.com/Selly-Modules/usermngmt/internal/model"
+	"github.com/Selly-Modules/usermngmt/database"
+	"github.com/Selly-Modules/usermngmt/model"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 )
@@ -11,7 +12,8 @@ import (
 func (h Handle) findByID(ctx context.Context, id primitive.ObjectID) (model.DBRole, error) {
 	var (
 		doc model.DBRole
+		col = database.GetRoleCol()
 	)
-	err := h.Col.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
+	err := col.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
 	return doc, err
 }
diff --git a/role/handle.go b/role/handle.go
index b00b9b1..6cd48c4 100644
--- a/role/handle.go
+++ b/role/handle.go
@@ -3,13 +3,11 @@ package role
 import (
 	"context"
 
-	"github.com/Selly-Modules/usermngmt/internal/model"
+	"github.com/Selly-Modules/usermngmt/model"
 	"go.mongodb.org/mongo-driver/bson/primitive"
-	"go.mongodb.org/mongo-driver/mongo"
 )
 
 type Handle struct {
-	Col *mongo.Collection
 }
 
 // FindByID ...
diff --git a/user/db.go b/user/db.go
index 0df6cf6..493bafd 100644
--- a/user/db.go
+++ b/user/db.go
@@ -5,13 +5,17 @@ import (
 	"fmt"
 
 	"github.com/Selly-Modules/logger"
-	"github.com/Selly-Modules/usermngmt/internal/model"
+	"github.com/Selly-Modules/usermngmt/database"
+	"github.com/Selly-Modules/usermngmt/model"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
 func (h Handle) isPhoneNumberOrEmailExisted(ctx context.Context, phone, email string) bool {
+	var (
+		col = database.GetUserCol()
+	)
 	// Find
 	cond := bson.M{
 		"$or": []bson.M{
@@ -23,7 +27,7 @@ func (h Handle) isPhoneNumberOrEmailExisted(ctx context.Context, phone, email st
 			},
 		},
 	}
-	total, err := h.Col.CountDocuments(ctx, cond)
+	total, err := col.CountDocuments(ctx, cond)
 	if err != nil {
 		logger.Error("usermngmt - countUserByCondition", logger.LogData{
 			"condition": cond,
@@ -35,11 +39,14 @@ func (h Handle) isPhoneNumberOrEmailExisted(ctx context.Context, phone, email st
 }
 
 func (h Handle) isRoleIDExisted(ctx context.Context, roleID primitive.ObjectID) bool {
+	var (
+		col = database.GetRoleCol()
+	)
 	// Find
 	cond := bson.M{
 		"_id": roleID,
 	}
-	total, err := h.RoleCol.CountDocuments(ctx, cond)
+	total, err := col.CountDocuments(ctx, cond)
 	if err != nil {
 		logger.Error("usermngmt - countRoleByCondition", logger.LogData{
 			"condition": cond,
@@ -53,13 +60,17 @@ func (h Handle) isRoleIDExisted(ctx context.Context, roleID primitive.ObjectID)
 func (h Handle) roleFindByID(ctx context.Context, id primitive.ObjectID) (model.DBRole, error) {
 	var (
 		doc model.DBRole
+		col = database.GetRoleCol()
 	)
-	err := h.RoleCol.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
+	err := col.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
 	return doc, err
 }
 
 func (h Handle) create(ctx context.Context, doc model.DBUser) error {
-	_, err := h.Col.InsertOne(ctx, doc)
+	var (
+		col = database.GetUserCol()
+	)
+	_, err := col.InsertOne(ctx, doc)
 	if err != nil {
 		logger.Error("usermngmt - Create", logger.LogData{
 			"doc": doc,
@@ -72,7 +83,10 @@ func (h Handle) create(ctx context.Context, doc model.DBUser) error {
 }
 
 func (h Handle) updateOneByCondition(ctx context.Context, cond interface{}, payload interface{}) error {
-	_, err := h.Col.UpdateOne(ctx, cond, payload)
+	var (
+		col = database.GetUserCol()
+	)
+	_, err := col.UpdateOne(ctx, cond, payload)
 	if err != nil {
 		logger.Error("usermngmt - Update", logger.LogData{
 			"cond":    cond,
@@ -88,15 +102,19 @@ func (h Handle) updateOneByCondition(ctx context.Context, cond interface{}, payl
 func (h Handle) findByID(ctx context.Context, id primitive.ObjectID) (model.DBUser, error) {
 	var (
 		doc model.DBUser
+		col = database.GetUserCol()
 	)
-	err := h.Col.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
+	err := col.FindOne(ctx, bson.M{"_id": id}).Decode(&doc)
 	return doc, err
 }
 
 func (h Handle) findByCondition(ctx context.Context, cond interface{}, opts ...*options.FindOptions) (docs []model.DBUser) {
+	var (
+		col = database.GetUserCol()
+	)
 	docs = make([]model.DBUser, 0)
 
-	cursor, err := h.Col.Find(ctx, cond, opts...)
+	cursor, err := col.Find(ctx, cond, opts...)
 	if err != nil {
 		logger.Error("usermngmt - All", logger.LogData{
 			"cond": cond,
@@ -119,7 +137,10 @@ func (h Handle) findByCondition(ctx context.Context, cond interface{}, opts ...*
 
 // countByCondition ...
 func (h Handle) countByCondition(ctx context.Context, cond interface{}) int64 {
-	total, err := h.Col.CountDocuments(ctx, cond)
+	var (
+		col = database.GetUserCol()
+	)
+	total, err := col.CountDocuments(ctx, cond)
 	if err != nil {
 		logger.Error("usermngmt - Count", logger.LogData{
 			"err":  err.Error(),
diff --git a/user/handle.go b/user/handle.go
index f824490..82ca23b 100644
--- a/user/handle.go
+++ b/user/handle.go
@@ -8,18 +8,15 @@ import (
 	"github.com/Selly-Modules/logger"
 	"github.com/Selly-Modules/mongodb"
 	"github.com/Selly-Modules/usermngmt/internal"
-	"github.com/Selly-Modules/usermngmt/internal/model"
+	"github.com/Selly-Modules/usermngmt/model"
 	"go.mongodb.org/mongo-driver/bson"
-	"go.mongodb.org/mongo-driver/mongo"
 )
 
 type Handle struct {
-	Col     *mongo.Collection
-	RoleCol *mongo.Collection
 }
 
 // Create ...
-func (h Handle) Create(payload model.CreateOptions) error {
+func (h Handle) Create(payload model.UserCreateOptions) error {
 	var (
 		ctx = context.Background()
 	)
@@ -58,7 +55,7 @@ func (h Handle) Create(payload model.CreateOptions) error {
 }
 
 // newUser ...
-func newUser(payload model.CreateOptions) (result model.DBUser, err error) {
+func newUser(payload model.UserCreateOptions) (result model.DBUser, err error) {
 	timeNow := internal.Now()
 	roleID, _ := mongodb.NewIDFromString(payload.RoleID)
 	return model.DBUser{
@@ -77,7 +74,7 @@ func newUser(payload model.CreateOptions) (result model.DBUser, err error) {
 }
 
 // All ...
-func (h Handle) All(queryParams model.AllQuery) (r model.UserAll) {
+func (h Handle) All(queryParams model.UserAllQuery) (r model.UserAll) {
 	var (
 		ctx  = context.Background()
 		wg   sync.WaitGroup
@@ -142,7 +139,7 @@ func (h Handle) getResponseList(ctx context.Context, users []model.DBUser) []mod
 }
 
 // UpdateByUserID ...
-func (h Handle) UpdateByUserID(userID string, payload model.UpdateOptions) error {
+func (h Handle) UpdateByUserID(userID string, payload model.UserUpdateOptions) error {
 	var (
 		ctx = context.Background()
 	)
diff --git a/usermngmt.go b/usermngmt.go
index 9e90bb7..a8b99ed 100644
--- a/usermngmt.go
+++ b/usermngmt.go
@@ -5,9 +5,9 @@ import (
 	"fmt"
 
 	"github.com/Selly-Modules/mongodb"
+	"github.com/Selly-Modules/usermngmt/database"
 	"github.com/Selly-Modules/usermngmt/role"
 	"github.com/Selly-Modules/usermngmt/user"
-	"go.mongodb.org/mongo-driver/mongo"
 )
 
 // MongoDBConfig ...
@@ -32,7 +32,6 @@ type Handler struct {
 // Service ...
 type Service struct {
 	config  Config
-	db      *mongo.Database
 	handler Handler
 }
 
@@ -63,19 +62,14 @@ func Init(config Config) (*Service, error) {
 		return nil, err
 	}
 
+	// Set database
+	database.Set(db, config.TablePrefix)
+
 	s = &Service{
 		config: config,
-		db:     db,
-	}
-
-	// Setup handle
-	s.handler = Handler{
-		User: user.Handle{
-			Col:     s.getCollectionName(config.TablePrefix, tableUser),
-			RoleCol: s.getCollectionName(config.TablePrefix, tableRole),
-		},
-		Role: role.Handle{
-			Col: s.getCollectionName(config.TablePrefix, tableRole),
+		handler: Handler{
+			User: user.Handle{},
+			Role: role.Handle{},
 		},
 	}