How to Get Every User That Reacted to A Message In Discord.js?

4 minutes read

To get every user that reacted to a message in Discord.js, you can use the message.reactions property to access the collection of reactions on that message. You can then iterate through each reaction and use the users property to get a collection of users who reacted with that specific reaction. Finally, you can iterate through each user in the collection to get their information like their username or user ID. By following this approach, you can effectively retrieve every user that reacted to a specific message in Discord.js.


How to use reaction collectors in discord.js?

To use reaction collectors in discord.js, you need to follow these steps:

  1. Define a message that the collector will listen to.
  2. Create a reaction collector using the createReactionCollector method. This method takes two parameters: the message to listen to and a filter function that determines which reactions to collect.
  3. Define the actions to be taken when a reaction is added or removed. This is done by using the collector.on('collect') and collector.on('remove') events.
  4. Start the reaction collector using the collector.on('end') event. This event is triggered when the collector is finished collecting reactions.


Here is an example code snippet showing how to implement a reaction collector in discord.js:

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const Discord = require('discord.js');
const client = new Discord.Client();

client.once('ready', () => {
    console.log('Bot is ready');
});

client.on('message', message => {
    if (message.content === '!react') {
        message.channel.send('React to this message with πŸ‘ to proceed.');

        const filter = (reaction, user) => {
            return reaction.emoji.name === 'πŸ‘' && user.id !== client.user.id;
        };

        const collector = message.createReactionCollector(filter, { time: 15000 });

        collector.on('collect', (reaction, user) => {
            console.log(`Collected ${reaction.emoji.name} from ${user.tag}`);
        });

        collector.on('end', collected => {
            console.log(`Collected ${collected.size} reactions`);
        });
    }
});

client.login('YOUR_BOT_TOKEN');


In this example, the bot listens for the command !react and sends a message asking users to react with a thumbs up emoji. The bot then creates a reaction collector that listens for thumbs up reactions and logs the collected reactions.


What is a reaction cache in discord.js?

A reaction cache in discord.js is a collection of reaction data associated with a message. It stores information about which users have reacted to a message with which emojis, allowing the bot to easily access and manipulate this data. This can be useful for features such as reaction role assignment or tracking user interactions with a message. By using a reaction cache, the bot can efficiently manage and update reaction data without needing to constantly fetch and process information from the Discord API.


How to handle multiple reactions on a message in discord.js?

To handle multiple reactions on a message in Discord.js, you can use the messageReactionAdd event or the messageReactionRemove event along with nested if statements to check for each reaction. Here's an example code snippet to give you an idea of how you can handle multiple reactions:

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// Your Discord.js bot code
client.on('messageReactionAdd', async (reaction, user) => {
  if (user.bot) return; // Skip reactions from bots

  // Get the message that the reaction was added to
  const message = reaction.message;

  // Check for specific emoji reactions and perform actions accordingly
  if (reaction.emoji.name === 'βœ…') {
    // Handle reaction emoji 'βœ…'
    message.channel.send('You reacted with βœ…');
  } else if (reaction.emoji.name === '❌') {
    // Handle reaction emoji '❌'
    message.channel.send('You reacted with ❌');
  } else {
    // Handle other reactions
    message.channel.send('You reacted with another emoji');
  }
});

client.on('messageReactionRemove', async (reaction, user) => {
  if (user.bot) return; // Skip reactions from bots

  // Get the message that the reaction was removed from
  const message = reaction.message;

  // Check for specific emoji reactions and perform actions accordingly
  if (reaction.emoji.name === 'βœ…') {
    // Handle reaction emoji 'βœ…'
    message.channel.send('You removed the reaction βœ…');
  } else if (reaction.emoji.name === '❌') {
    // Handle reaction emoji '❌'
    message.channel.send('You removed the reaction ❌');
  } else {
    // Handle other reactions
    message.channel.send('You removed another emoji reaction');
  }
});


This code snippet listens for reactions added and removed on messages and checks for specific emoji reactions to perform different actions based on the emoji used. You can customize the code to handle different emojis and actions as needed.


What is a reaction handler function in discord.js?

A reaction handler function in discord.js is a function that is triggered when a user reacts to a message in a Discord server. This function allows you to perform actions based on the reaction that was added or removed from the message. It is commonly used in Discord bots to add interactive elements to messages, such as polls or menu options. The reaction handler function takes in parameters like the user who added or removed the reaction, the emoji that was reacted with, and the message that the reaction was added to.

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