bot.telegram.sendMessage timeout needed?

https://core.telegram.org/bots/faq#how-can-i-message-all-of-my-bot-39s-subscribers-at-once

When sending messages inside a particular chat, avoid sending more than one message per second. We may allow short bursts that go over this limit, but eventually you’ll begin receiving 429 errors. If you’re sending bulk notifications to multiple users, the API will not allow more than 30 messages per second or so. Consider spreading out notifications over large intervals of 8—12 hours for best results. Also note that your bot will not be able to send more than 20 messages per minute to the same group.

Telegraf have 30message/seconds delay if i use bot.telegram.sendMessage(chat.id, '...'); ?

[ptkdev]

@AndreoliBR install system-sleep from npm, example:

    function check_database(json){
        let sleep = require('system-sleep');
        db.serialize(function() {
            let limit = 0;
            db.each("SELECT rowid AS id, chat_id, last_url FROM users", function(err, row) {
                let last_url = null;
                let chat_id = null;
                let i = 0;
                for (i = 0; i < config.wp_total_feed && i < json.rss.channel[0].item.length; i++) {
                    let url = json.rss.channel[0].item[i].link[0].replace("'", "");
                    if(i == 0){
                        last_url = url;
                        chat_id = row.chat_id;
                    }
                    if(url == row.last_url)
                        break;

                    bot.telegram.sendMessage(row.chat_id, url);
                    limit++;

                    if(limit >= 29){ // bug: https://core.telegram.org/bots/faq#how-can-i-message-all-of-my-bot-39s-subscribers-at-once
                        sleep(1000);
                        limit = 0;
                    }
                }

                if(i > 0){
                    db.run("UPDATE users SET last_url = ? WHERE chat_id = ?", last_url, chat_id);
                }
            });
        });
    }

[ptkdev]

@AndreoliBR great! Nice bro!