diff --git a/api/user.go b/api/user.go
index 482ab319b..58aa29ec3 100644
--- a/api/user.go
+++ b/api/user.go
@@ -17,7 +17,9 @@ package api
 
 import (
 	"net/http"
+	"os"
 	"strconv"
+	"strings"
 
 	"github.com/vmware/harbor/dao"
 	"github.com/vmware/harbor/models"
@@ -27,13 +29,35 @@ import (
 // UserAPI handles request to /api/users/{}
 type UserAPI struct {
 	BaseAPI
-	currentUserID int
-	userID        int
+	currentUserID    int
+	userID           int
+	SelfRegistration bool
+	IsAdmin          bool
+	AuthMode         string
 }
 
 // Prepare validates the URL and parms
 func (ua *UserAPI) Prepare() {
 
+	authMode := strings.ToLower(os.Getenv("AUTH_MODE"))
+	if authMode == "" {
+		authMode = "db_auth"
+	}
+	ua.AuthMode = authMode
+
+	selfRegistration := strings.ToLower(os.Getenv("SELF_REGISTRATION"))
+	if selfRegistration == "on" {
+		ua.SelfRegistration = true
+	}
+
+	if ua.Ctx.Input.IsPost() {
+		sessionUserID := ua.GetSession("userId")
+		_, _, ok := ua.Ctx.Request.BasicAuth()
+		if sessionUserID == nil && !ok {
+			return
+		}
+	}
+
 	ua.currentUserID = ua.ValidateUser()
 	id := ua.Ctx.Input.Param(":id")
 	if id == "current" {
@@ -56,18 +80,20 @@ func (ua *UserAPI) Prepare() {
 			ua.CustomAbort(http.StatusNotFound, "")
 		}
 	}
+
+	var err error
+	ua.IsAdmin, err = dao.IsAdminRole(ua.currentUserID)
+	if err != nil {
+		log.Errorf("Error occurred in IsAdminRole:%v", err)
+		ua.CustomAbort(http.StatusInternalServerError, "Internal error.")
+	}
+
 }
 
 // Get ...
 func (ua *UserAPI) Get() {
-	exist, err := dao.IsAdminRole(ua.currentUserID)
-	if err != nil {
-		log.Errorf("Error occurred in IsAdminRole, error: %v", err)
-		ua.CustomAbort(http.StatusInternalServerError, "Internal error.")
-	}
-
 	if ua.userID == 0 { //list users
-		if !exist {
+		if !ua.IsAdmin {
 			log.Errorf("Current user, id: %d does not have admin role, can not list users", ua.currentUserID)
 			ua.RenderError(http.StatusForbidden, "User does not have admin role")
 			return
@@ -85,7 +111,7 @@ func (ua *UserAPI) Get() {
 		}
 		ua.Data["json"] = userList
 
-	} else if ua.userID == ua.currentUserID || exist {
+	} else if ua.userID == ua.currentUserID || ua.IsAdmin {
 		userQuery := models.User{UserID: ua.userID}
 		u, err := dao.GetUser(userQuery)
 		if err != nil {
@@ -103,12 +129,7 @@ func (ua *UserAPI) Get() {
 
 // Put ...
 func (ua *UserAPI) Put() { //currently only for toggle admin, so no request body
-	exist, err := dao.IsAdminRole(ua.currentUserID)
-	if err != nil {
-		log.Errorf("Error occurred in IsAdminRole, error: %v", err)
-		ua.CustomAbort(http.StatusInternalServerError, "Internal error.")
-	}
-	if !exist {
+	if !ua.IsAdmin {
 		log.Warningf("current user, id: %d does not have admin role, can not update other user's role", ua.currentUserID)
 		ua.RenderError(http.StatusForbidden, "User does not have admin role")
 		return
@@ -117,18 +138,38 @@ func (ua *UserAPI) Put() { //currently only for toggle admin, so no request body
 	dao.ToggleUserAdminRole(userQuery)
 }
 
+// Post ...
+func (ua *UserAPI) Post() {
+
+	if !(ua.AuthMode == "db_auth") {
+		ua.CustomAbort(http.StatusForbidden, "")
+	}
+
+	if !(ua.SelfRegistration || ua.IsAdmin) {
+		log.Warning("Registration can only be used by admin role user when self-registration is off.")
+		ua.CustomAbort(http.StatusForbidden, "")
+	}
+
+	user := models.User{}
+	ua.DecodeJSONReq(&user)
+
+	_, err := dao.Register(user)
+	if err != nil {
+		log.Errorf("Error occurred in Register: %v", err)
+		ua.RenderError(http.StatusInternalServerError, "Internal error.")
+		return
+	}
+
+}
+
 // Delete ...
 func (ua *UserAPI) Delete() {
-	exist, err := dao.IsAdminRole(ua.currentUserID)
-	if err != nil {
-		log.Errorf("Error occurred in IsAdminRole, error: %v", err)
-		ua.CustomAbort(http.StatusInternalServerError, "Internal error.")
-	}
-	if !exist {
+	if !ua.IsAdmin {
 		log.Warningf("current user, id: %d does not have admin role, can not remove user", ua.currentUserID)
 		ua.RenderError(http.StatusForbidden, "User does not have admin role")
 		return
 	}
+	var err error
 	err = dao.DeleteUser(ua.userID)
 	if err != nil {
 		log.Errorf("Failed to delete data from database, error: %v", err)
diff --git a/controllers/register.go b/controllers/register.go
index dd1a80eab..d8ed05715 100644
--- a/controllers/register.go
+++ b/controllers/register.go
@@ -17,7 +17,6 @@ package controllers
 
 import (
 	"net/http"
-	"strings"
 
 	"github.com/vmware/harbor/dao"
 	"github.com/vmware/harbor/models"
@@ -65,33 +64,6 @@ func (ac *AddUserController) Get() {
 	}
 }
 
-// SignUp insert data into DB based on data in form.
-func (cc *CommonController) SignUp() {
-
-	if !(cc.AuthMode == "db_auth") {
-		cc.CustomAbort(http.StatusForbidden, "")
-	}
-
-	if !(cc.SelfRegistration || cc.IsAdmin) {
-		log.Warning("Registration can only be used by admin role user when self-registration is off.")
-		cc.CustomAbort(http.StatusForbidden, "")
-	}
-
-	username := strings.TrimSpace(cc.GetString("username"))
-	email := strings.TrimSpace(cc.GetString("email"))
-	realname := strings.TrimSpace(cc.GetString("realname"))
-	password := strings.TrimSpace(cc.GetString("password"))
-	comment := strings.TrimSpace(cc.GetString("comment"))
-
-	user := models.User{Username: username, Email: email, Realname: realname, Password: password, Comment: comment}
-
-	_, err := dao.Register(user)
-	if err != nil {
-		log.Errorf("Error occurred in Register: %v", err)
-		cc.CustomAbort(http.StatusInternalServerError, "Internal error.")
-	}
-}
-
 // UserExists checks if user exists when user input value in sign in form.
 func (cc *CommonController) UserExists() {
 	target := cc.GetString("target")
diff --git a/models/user.go b/models/user.go
index 82b8bc221..29fb41c13 100644
--- a/models/user.go
+++ b/models/user.go
@@ -22,11 +22,11 @@ import (
 // User holds the details of a user.
 type User struct {
 	UserID       int    `orm:"column(user_id)" json:"UserId"`
-	Username     string `orm:"column(username)"`
-	Email        string `orm:"column(email)"`
-	Password     string `orm:"column(password)"`
-	Realname     string `orm:"column(realname)"`
-	Comment      string `orm:"column(comment)"`
+	Username     string `orm:"column(username)" json:"username"`
+	Email        string `orm:"column(email)" json:"email"`
+	Password     string `orm:"column(password)" json:"password"`
+	Realname     string `orm:"column(realname)" json:"realname"`
+	Comment      string `orm:"column(comment)" json:"comment"`
 	Deleted      int    `orm:"column(deleted)"`
 	Rolename     string
 	RoleID       int `json:"RoleId"`
diff --git a/static/resources/js/register.js b/static/resources/js/register.js
index e8fe31d35..8f970946f 100644
--- a/static/resources/js/register.js
+++ b/static/resources/js/register.js
@@ -38,14 +38,25 @@ jQuery(function(){
             var comment  = $.trim($("#Comment").val());
             var isAdmin = $("#isAdmin").val();
             
-			$.ajax({
-				url : '/signUp',
-				data:{username: username, password: password, realname: realname, comment: comment, email: email},
+			new AjaxUtil({
+				url : "/api/users",
+				data: {"username": username, "password": password, "realname": realname, "comment": comment, "email": email},
 				type: "POST",
 				beforeSend: function(e){
 					$("#btnPageSignUp").prop("disabled", true);
 				},
-				success: function(data, status, xhr){
+				error:function(jqxhr, status, error){
+					$("#dlgModal")
+							.dialogModal({
+								"title": i18n.getMessage("title_sign_up"), 
+								"content": i18n.getMessage("internal_error"),
+								"callback": function(){ 								
+									return;
+								}
+							});
+				},
+				complete: function(xhr, status){
+					$("#btnPageSignUp").prop("disabled", false);
 					if(xhr && xhr.status == 200){
 						$("#dlgModal")
 							.dialogModal({
@@ -60,21 +71,8 @@ jQuery(function(){
 								}
 							});
 					}
-				},
-				error:function(jqxhr, status, error){
-					$("#dlgModal")
-							.dialogModal({
-								"title": i18n.getMessage("title_sign_up"), 
-								"content": i18n.getMessage("internal_error"),
-								"callback": function(){ 								
-									return;
-								}
-							});
-				},
-				complete: function(){
-					$("#btnPageSignUp").prop("disabled", false);
 				}
-			});
+			}).exec();
 		});
 	});
 });
\ No newline at end of file
diff --git a/ui/router.go b/ui/router.go
index 4eb04108b..a1f9067c1 100644
--- a/ui/router.go
+++ b/ui/router.go
@@ -32,7 +32,6 @@ func initRouters() {
 	beego.Router("/login", &controllers.CommonController{}, "post:Login")
 	beego.Router("/logout", &controllers.CommonController{}, "get:Logout")
 	beego.Router("/language", &controllers.CommonController{}, "get:SwitchLanguage")
-	beego.Router("/signUp", &controllers.CommonController{}, "post:SignUp")
 	beego.Router("/userExists", &controllers.CommonController{}, "post:UserExists")
 	beego.Router("/reset", &controllers.CommonController{}, "post:ResetPassword")
 	beego.Router("/sendEmail", &controllers.CommonController{}, "get:SendEmail")
@@ -56,6 +55,7 @@ func initRouters() {
 	beego.Router("/api/projects/:pid/members/?:mid", &api.ProjectMemberAPI{})
 	beego.Router("/api/projects/?:id", &api.ProjectAPI{})
 	beego.Router("/api/projects/:id/logs/filter", &api.ProjectAPI{}, "post:FilterAccessLog")
+	beego.Router("/api/users", &api.UserAPI{})
 	beego.Router("/api/users/?:id", &api.UserAPI{})
 	beego.Router("/api/repositories", &api.RepositoryAPI{})
 	beego.Router("/api/repositories/tags", &api.RepositoryAPI{}, "get:GetTags")