Passwordless examples

ExampleController.cs

public async Task<IActionResult> TokenVerify(string token)
{
    var httpClient = new HttpClient();
    // use the Passwordless extension functions
    var result = await httpClient.VerifyPasswordlessToken(new VerifyTokenParameters(Configuration.ApiSecret, token));
    if (result.Success)
    {
        Response.Cookies.Append("User", result.Username);
    }

    return result;
}

ExampleController.register.cs

public async Task<string>  OnPostRegister()
{
    // get the currently signed in user, perhaps via cookie or HttpContext.
    Username = Request.Cookies["User"];

    var client = new HttpClient();
    
    // get a token that allows registering a passwordless credential for this username
    var token = await client.GetPasswordlessRegisterToken(new PasswordlessTokenParameters(ApiSecret, Username));
    
    // return the token to the client side code
    return token;
}

passwordless.register.js

var username = "...";
var p = new PasswordlessClient({ apiKey: "demo:public:1e0a1f9ec6984548..." });
var myToken = await fetch("/example-backend/passwordless/token" + "?username=" + username).then(r => r.text());
await p.register(myToken);

passwordless.signin.js

var username = "...";
var passwordless = new PasswordlessClient({ apiKey: "demo:public:1e0a1f9ec6984548..." });
var token = await passwordless.signin(username);
var user = await fetch("/example-backend/passwordless/token/verify?token=" + token).then(r => r.json());
console.log("User is signed in", user);