如何使用 npm 库 Telegraf 从数据库中的 id 列表一次向所有电报机器人用户发送消息

Question

i have selected all ids of my telegram bot users from mysql database and want to send messages to them at once.I have tried

con.query("SELECT id FROM account",function (err,res) {
           res.forEach(function (message) {
               ctx.telegram.sendMessage(message.id, ctx.message.text)
   })
})

but it sends each message to a user at a time.i want to send the message to all users at once using an array of all ids as in telegram api

Answer 1

Use sleep in your loop to send for each user:

function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
async function send() {
   con.query("SELECT id FROM account",function (err,res) {
       res.forEach(function (message) {
           ctx.telegram.sendMessage(message.id, ctx.message.text)
           await sleep(2000);
      })
   })
 }

Good luck;