/C#/C# .net JwtSecurityTokenHandler jwttoken claims to object

C# .net JwtSecurityTokenHandler jwttoken claims to object

In any controller from net core 2 that has gone through the authorize with the JwtBearerDefaults scheme, you can use:

 [Authorize(AuthenticationSchemes = JwtBearerDefaults.AuthenticationScheme)]
 public ActionResult Index()
    {
        var user = User.FindFirst("Name").Value;
        //or if u want the list of claims
        var claims = User.Claims;

        return View();
    }

Source: stackoverflow.com

C# .net JwtSecurityTokenHandler jwttoken claims to object

public static ClaimsPrincipal ValidateToken(string jwtToken)
    {
        IdentityModelEventSource.ShowPII = true;

        SecurityToken validatedToken;
        TokenValidationParameters validationParameters = new TokenValidationParameters();

        validationParameters.ValidateLifetime = true;

        validationParameters.ValidAudience = _audience.ToLower();
        validationParameters.ValidIssuer = _issuer.ToLower();
        validationParameters.IssuerSigningKey = new Microsoft.IdentityModel.Tokens.SymmetricSecurityKey(Encoding.UTF8.GetBytes(_appSettings.Secret));

        ClaimsPrincipal principal = new JwtSecurityTokenHandler().ValidateToken(jwtToken, validationParameters, out validatedToken);


        return principal;
    }

Source: stackoverflow.com

C# .net JwtSecurityTokenHandler jwttoken claims to object

You should be able to retrieve a claims like this within your controller

var identity = HttpContext.User.Identity as ClaimsIdentity;
if (identity != null)
{
    IEnumerable<Claim> claims = identity.Claims; 
    // or
    identity.FindFirst("ClaimName").Value;

}
If you wanted, you could write extension methods for the IPrincipal interface and retrieve claims using the code above, then retrieve them using (for example)

HttpContext.User.Identity.MethodName();

Source: stackoverflow.com

C# .net JwtSecurityTokenHandler jwttoken claims to object

var identity = HttpContext.User.Identity as ClaimsIdentity;
if (identity != null)
{
    IEnumerable<Claim> claims = identity.Claims; 
    // or
    identity.FindFirst("ClaimName").Value;

}

Source: stackoverflow.com

C# .net JwtSecurityTokenHandler jwttoken claims to object

// Cast to ClaimsIdentity.
var identity = HttpContext.User.Identity as ClaimsIdentity;

// Gets list of claims.
IEnumerable<Claim> claim = identity.Claims; 

// Gets name from claims. Generally it's an email address.
var usernameClaim = claim
    .Where(x => x.Type == ClaimTypes.Name)
    .FirstOrDefault();

// Finds user.
var userName = await _userManager
    .FindByNameAsync(usernameClaim.Value);

if (userName == null)
{
    return BadRequest();
}

// The rest of your code goes here...

Source: stackoverflow.com

C# .net JwtSecurityTokenHandler jwttoken claims to object

HttpContext.User.Identity.MethodName();

Source: stackoverflow.com

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