Is there a better way with NodeJs to get updates from a Telegram bot?

问题

I'm using simply like below:

class Bot {
   constructor(token) {
     let _baseApiURL = `https://api.telegram.org`;
     //code here
   }

   getAPI(apiName) {
    return axios.get(`${this.getApiURL()}/${apiName}`);
   }

   getApiURL() {
     return `${this.getBaseApiUrl()}/bot${this.getToken()}`;
   }

   getUpdates(fn) {
        this.getAPI('getUpdates')
            .then(res => {
                this.storeUpdates(res.data);
                fn(res.data);
                setTimeout(() => {
                    this.getUpdates(fn);
                }, 1000);
            })
            .catch(err => {
                console.log('::: ERROR :::', err);
            });
    }
}
const bot = new Bot('mytoken');
bot.start(); 

I'd like to know whether there is a better way to listen for Telegram's updates, instead of using a timeout and redo an Ajax call to 'getUpdates' API

回答1:

Telegram supports polling or webhooks, so you can use the latter to avoid polling the getUpdates API

Getting updates

There are two mutually exclusive ways of receiving updates for your bot — the getUpdates method on one hand and Webhooks on the other. Incoming updates are stored on the server until the bot receives them either way, but they will not be kept longer than 24 hours.

Regardless of which option you choose, you will receive JSON-serialized Update objects as a result.

More info on: https://core.telegram.org/bots/api#getting-updates

---

You can use telegraf to easily setup a webhook or to handle the polling for you with a great API

来源：https://stackoverflow.com/questions/50275931/is-there-a-better-way-with-nodejs-to-get-updates-from-a-telegram-bot