Get Repositories

Call a method to get all repositories.
Call getRepositories() to get all repositories and get the first SharePoint online repository found.
final string sharePointOnlineProviderType ='ContentHubSharepointOffice365';
final ConnectApi.ContentHubRepositoryCollection repositoryCollection = ConnectApi.ContentHub.getRepositories();
ConnectApi.ContentHubRepository sharePointOnlineRepository = null;
for(ConnectApi.ContentHubRepository repository : repositoryCollection.repositories){
   if(sharePointOnlineProviderType.equalsIgnoreCase(repository.providerType.type)){
      sharePointOnlineRepository = repository;
      break;
   }
}