public User Authenticate(string username, string password)
{
var hashedPassword = _hashAlg.HashPassword(password);
var user = _users.SingleOrDefault(x => x.Username == username && x.Password == hashedPassword);
// return null if user not found
if (user == null)
{
return(null);
}
// 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, user.UserId.ToString())
}),
Expires = DateTime.UtcNow.AddDays(7),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
};
var token = tokenHandler.CreateToken(tokenDescriptor);
user.Token = tokenHandler.WriteToken(token);
return(user);
}
