/// <summary>
/// This method Authenticate user and password details
/// </summary>
/// <param name="username">The username</param>
/// <param name="password">The password</param>
/// <returns></returns>
public async Task <User> AuthenticateAsync(string username, string password)
{
UserValidation.ValidateUserName(username);
UserValidation.ValidatePassword(password);
// return null if user not found
var applicationUser = await userDataService.FindUserByName(username);
if (applicationUser != null && await userDataService.CheckPasswordAsync(applicationUser, password))
{
// authentication successful so generate jwt token
var tokenHandler = new JwtSecurityTokenHandler();
var key = Encoding.ASCII.GetBytes(_appSettings.Secret);
var tokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new Claim[]
{
new Claim(ClaimTypes.Name, applicationUser.Id.ToString())
}),
Expires = DateTime.UtcNow.AddDays(7),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
};
var token = tokenHandler.CreateToken(tokenDescriptor);
User user = new User();
user.Token = tokenHandler.WriteToken(token);
user.Username = applicationUser.UserName;
user.email = applicationUser.Email;
return(user);
}
return(null);
}