机器人为什么会自我反应？ （discord.js）

Question

I'm setting up a bot, who will await for a user's reaction to write a short message. Currently, the bot responds itself to his reaction! Why?

const { Client, RichEmbed, Discord } = require('discord.js');
const config = require('./config.json');
const client= new Client();


client.on('ready', () => {
    console.log('je suis pret!');
    client.user.setActivity("/help pour appeler de l'aide (avec le code NOMAD bien sur)", { type: 'WATCHING' });

})
client.on('messageReactionAdd', (reaction, user) => {
    console.log(`${user.username} reacted with "${reaction.emoji.name}".`);
});

client.on('messageReactionRemove', (reaction, user) => {
    console.log(`${user.username} removed their "${reaction.emoji.name}" reaction.`);
});
client.on('message', async message => {
    if (message.author.bot) return; 

    if (message.content.toLowerCase().startsWith('!rea')) {
      try {
        const sentMessage = await message.channel.send('Select a number.');

        for (let n = 1; n <= 5; n++) await sentMessage.react(`${n}⃣`);

        const filter = (reaction, user) => ['1', '2', '3', '4', '5'].includes(reaction.emoji.name.slice(0, 1)) && user.id === message.author.id;
        const collected = await sentMessage.awaitReactions(filter, { maxMatches: 1, time: 60000 });

        if (collected.size === 0) {
          await sentMessage.clearReactions();
          await message.channel.send('Your time ran out.');
        } else {
          const reaction = collected.first();

          switch(reaction.emoji.name.slice(0, 1)) {
            case '1':
              await message.channel.send('You chose `one`.');
              break;
          }
        }
      } catch(err) {
        console.error(err);
      }
    }
  });
client.login(config.token);

I found the problem: the bot considers the first message: "!rea", so if I add the reaction below !rea, it answers! How can I fix this, because I want that he considered the embed reactions!

Thank you for your help

Answer 1

Your client's message event is emitted by any message, including those sent by itself.

To prevent bots (and therefore your client as well) from triggering the code, add a condition checking the author's User.bot property at the beginning of the callback, and return if it's true .

if (message.author.bot) return; // Stop if the author is a bot.

// Continue with your code.

Additionally, you're collecting reactions on the wrong message, and on every one. message outside of your first then() callback is the one the bot received .

To make things much more simple and readable, we can use the await keyword (note that it can only be used asynchronous context, like in a function declared as async).

Combining these changes...

client.on('message', async message => {
  if (message.author.bot) return; 

  if (message.content.toLowerCase().startsWith('!rea')) {
    try {
      const sentMessage = await message.channel.send('Select a number.');

      for (let n = 1; n <= 5; n++) await sentMessage.react(`${n}⃣`);

      const filter = (reaction, user) => ['1', '2', '3', '4', '5'].includes(reaction.emoji.name.slice(0, 1)) && user.id === message.author.id;
      const collected = await sentMessage.awaitReactions(filter, { maxMatches: 1, time: 60000 });

      if (collected.size === 0) {
        await sentMessage.clearReactions();
        await message.channel.send('Your time ran out.');
      } else {
        const reaction = collected.first();

        switch(reaction.emoji.name.slice(0, 1)) {
          case '1':
            await message.channel.send('You chose `one`.');
            break;
        }
      }
    } catch(err) {
      console.error(err);
    }
  }
});