// 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;
}
}
