Added binding to tokens api and role validation

pkg/models/collaborator.go

@@ -19,12 +19,8 @@ const (
 	ROLE_ADMIN  RoleType = "Admin"
 )
 
-func (r RoleType) Validate() error {
-	if r == ROLE_OWNER || r == ROLE_VIEWER || r == ROLE_ADMIN || r == ROLE_EDITOR {
-		return nil
-	}
-
-	return ErrInvalidRoleType
+func (r RoleType) IsValid() bool {
+	return r == ROLE_VIEWER || r == ROLE_ADMIN || r == ROLE_EDITOR
 }
 
 type Collaborator struct {

pkg/models/token.go

@@ -25,11 +25,12 @@ type AddTokenCommand struct {
 }
 
 type UpdateTokenCommand struct {
-	Id        int64    `json:"id"`
-	Name      string   `json:"name"`
-	AccountId int64    `json:"-"`
-	Role      RoleType `json:"role"`
-	Result    *Token   `json:"-"`
+	Id   int64    `json:"id"`
+	Name string   `json:"name"`
+	Role RoleType `json:"role"`
+
+	AccountId int64  `json:"-"`
+	Result    *Token `json:"-"`
 }
 
 type DeleteTokenCommand struct {