If the peer settings of a new user allow us to add him as contact, add that user as contact
Example
const {Api, TelegramClient} = require('telegram');
const {StringSession} = require('telegram/sessions');
const session = new StringSession('');
const client = new TelegramClient(session, apiId, apiHash, {});
(async function run() {
const result = await client.invoke(new Api.contacts.acceptContact({
id: new Api.InputUser({...}),
}));
console.log(result); // prints the result
})();
import {Api, TelegramClient} from 'telegram';
import {StringSession} from 'telegram/sessions';
const session = new StringSession('');
const client = new TelegramClient(session, apiId, apiHash, {});
(async function run() {
const result: Api.Updates = await client.invoke(new Api.contacts.acceptContact({
id: new Api.InputUser({...}),
}));
console.log(result); // prints the result
})();