Unable to add groups to user using Authorization Extension API from asp.net core 3.1 Web API

[misgena.abuhay]

Hello,

I am using the Authentication API from asp.net core 3.1 Web API to add groups to a user but i keep getting the value must be an array error.
Here is my code snippet:

 public async Task<bool> AddGroupsToUser(AddUserGroup addGroups)
        {
            var result = false; 
            foreach (var groupId in addGroups.GroupIds) // addGroups.GroupIds is string[] type)
            {
                Uri uri = new Uri($"{_url}/groups/{groupId}/members");
                var client = new RestClient(uri);
                var request = new RestRequest(Method.PATCH);
                request.AddHeader("authorization", "Bearer " + _tokenResponse.access_token);
                request.AddParameter("user_id", addGroups.UserId);
                request.AddParameter("group_id",groupId ); 
                IRestResponse response = await client.ExecuteAsync(request);
                result = response.IsSuccessful;
            }
                     
            return result;
        }

I also used PATCH /users/{user_id}/groups but i still get the same error.
Besides, When I send the request, do i have to send only the new groups that i want to add or all (existing + new)?

I don’t know what i am missing here.

Thanks for the help.

[misgena.abuhay]

@misgena.abuhay

addGroups.GroupIds is string

The problem was addGroups.GroupIds is defined as string on the server but on the UI the type was any because when i was looping through the array to collect the groupids, I forgot to pass the iterator. when it comes to the server , the type was being properly mapped to string but i guess Auth0 was able to detect it. So adding the iterator on the UI, solved my problem.

[konrad.sopala]

Perfect! Glad you have figured it out and thanks for sharing the solution with the rest of community!