Members API: Allow adding member by Username
> case of 'Add a member to a group or project ' rest api
## Could you allow username as well as user_id in parameter user_id?
-----
Add a member to a group or project
```
GET /groups/:id/members
GET /projects/:id/members
```
from
|Attribute |Type |Required |Description|
| ------ | ------ | ------ | ------ |
|user_id |integer |yes |The user ID of the new member|
to
|Attribute |Type |Required |Description|
| ------ | ------ | ------ | ------ |
|user_id |integer/string |yes |The user ID or username of the new member|
Thank you.
issue