Field is called email not username

http/http.go

@@ -134,25 +134,26 @@ func (h *Handler) loginPost(c *gin.Context) {
 }
 
 func (h *Handler) registerPost(c *gin.Context) {
-	username, _ := c.GetPostForm("username")
+	email, _ := c.GetPostForm("email")
 	password, _ := c.GetPostForm("password")
 	name, _ := c.GetPostForm("name")
 
-	user, err := h.UserService.UserByUsername(username)
+	user, err := h.UserService.UserByUsername(email)
-	if err != nil {
+	if err == nil {
 		c.AbortWithStatus(http.StatusUnauthorized)
 		return
 	}
 
 	hash, err := h.CredentialsVerifier.Hash(password)
 	if err != nil {
-		c.AbortWithStatus(http.StatusUnauthorized)
+		c.AbortWithError(http.StatusUnauthorized, err)
+		return
 	}
 
 	user = &budgeteer.User{
 		Name:     name,
 		Password: hash,
-		Email:    username,
+		Email:    email,
 	}
 	err = h.UserService.CreateUser(user)
 	if err != nil {