Qr code login

First of all, awesome works guys!

I’m trying to login via qr code, so, reading the docs I generated a login token via:

    ...
    const client = new TelegramClient(stringSession, Number(apiId), apiHash, {
      connectionRetries: 5,
    });

    await client.connect();

    const loginToken: Api.auth.TypeLoginToken = await client.invoke(
      new Api.auth.ExportLoginToken({
        apiId: Number(apiId),
        apiHash,
        exceptIds: [9505834],
      }),
    );
    if (!(loginToken instanceof Api.auth.LoginToken)) {
      return;
    }
    console.log(`tg://login?token=${loginToken.token.toString('base64url')}`);
    ...

After that, I scanned the returned url in my phone. So, how can I start the client using this token? what is the correct use of client.start(<AuthUser>)? The AuthuUser interface impose phoneCode use, but I want to login only via qr code.

Thanks for the help.

Issue Analytics

State:
Created 2 years ago
Comments:8 (4 by maintainers)

Top GitHub Comments

2reactions

painorcommented, Sep 10, 2021

Should be fixed in latest patch. There was actually a piece of code in the library that made qr login broken 😕 I’ve added an example in the docs as well.

    const user = await client.signInUserWithQrCode({ apiId, apiHash },
        {
            onError: async function(p1: Error) {
                console.log("error", p1);
                // true = stop the authentication processes
                return true;
            },
            qrCode: async (code) => {
                console.log("Convert the next string to a QR code and scan it");
                console.log(
                    `tg://login?token=${code.token.toString("base64url")}`
                );
            },
            password: async (hint) => {
                // password if needed
                return "1111";
            }
        }
    );
    console.log("user is", user);

2reactions

painorcommented, Sep 9, 2021

There is already a helper method for QR codes. signInUserWithQrCode. you can take a look on how it implements it.

Basically after you scan the code telegram would send you an event. after which you need to call ExportLoginToken again.