curl -XGET 'https://platform.wellviasolutions.com/organization/v1/group' \
    -u 'Bearer:{your_token}'

GET https://platform.wellviasolutions.com/organization/v1/group HTTP/1.1

using WellViaSDK.Organization;

const string apiSubscriptionKey = "your_api_subscription_key";
var _orgClient = new WellViaOrganizationServiceClient(subscriptionKey: apiSubscriptionKey);

var grps = await _orgClient.GetGroupsAsync();