// Returns the Client data for a given ClientId. // Assumption: each Client has a unique ClientId. public async Task <Client> GetClientById(string id) { try { IEnumerable <Client> clients = await _clientData.GetAllClients(); Client client = clients.FirstOrDefault(x => x.Id == id); return(client); } catch (Exception ex) { _logger.LogError("An error occurred in method GetClientById. {0}", ex); throw; } }
// User data is taken from web service. For simplicity, passwords will be taken from the field Id (guid). // For security reasons store this data in a database with hashed passwords in production environment. public async Task <User> Authenticate(string userName, string password) { try { IEnumerable <Client> users = await _clientData.GetAllClients(); Client client = await Task.Run(() => users.SingleOrDefault(x => x.Name == userName && x.Id == password)); // Return null if user not found. if (client == null) { return(null); } else { // Map Client to User. User user = new User { Id = client.Id, UserName = client.Name, Password = client.Id, Role = client.Role }; // Authentication successful so return user details without password. return(user.WithoutPassword()); } } catch (Exception ex) { _logger.LogError("An error occurred in method Authenticate. {0}", ex); throw; } }