(C# UWP/WinRT) bitzlato.com whoami

Demonstrates sending a request to the bitzlato.com whoami endpoint using an ES256 JWT token for authentication.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

bool success;

//  Use the following ECC key loaded from JWK format.
Chilkat.JsonObject jwk = new Chilkat.JsonObject();
success = jwk.UpdateString("kty","EC");
success = jwk.UpdateString("crv","P-256");
success = jwk.UpdateString("x","...");
success = jwk.UpdateString("y","...");
success = jwk.UpdateString("d","...");

Chilkat.PrivateKey eccKey = new Chilkat.PrivateKey();
success = eccKey.LoadJwk(jwk.Emit());
if (success == false) {
    Debug.WriteLine(eccKey.LastErrorText);
    return;
}

Chilkat.Jwt jwt = new Chilkat.Jwt();

// Build the JOSE header
Chilkat.JsonObject jose = new Chilkat.JsonObject();
success = jose.AppendString("format","compact");
success = jose.AppendString("alg","ES256");

// Now build the JWT claims (also known as the payload)

// Our JWT claims will contain members as shown here:

// 	{
// 	  "email":"your_email@example.com",
// 	  "aud":"usr",
// 	  "iat":"1588286154",
// 	  "jti":"555D9123"
// 	}

Chilkat.JsonObject claims = new Chilkat.JsonObject();
claims.AppendString("jti","555D9123");
claims.AppendString("email","your_email@example.com");

// Set the timestamp of when the JWT was created to now minus 60 seconds
int curDateTime = jwt.GenNumericDate(-60);
success = claims.AddIntAt(-1,"iat",curDateTime);

// Set the "not process before" timestamp to now minus 60 seconds
success = claims.AddIntAt(-1,"nbf",curDateTime);

// Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 hour (3600 seconds)
success = claims.AddIntAt(-1,"exp",curDateTime + 3600);

claims.AppendString("aud","usr");

// Produce the smallest possible JWT:
jwt.AutoCompact = true;

// Create the JWT token.  This is where the RSA signature is created.
string jwt_token = jwt.CreateJwtPk(jose.Emit(),claims.Emit(),eccKey);

Debug.WriteLine(jwt_token);

// Send the HTTPS GET with the jwt_token used for Authorization.
Chilkat.Http http = new Chilkat.Http();
http.AuthToken = jwt_token;
string responseStr = await http.QuickGetStrAsync("https://bitzlato.com/api/auth/whoami");
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("status code = " + Convert.ToString(http.LastStatus));
Debug.WriteLine(responseStr);