Discord JS // Experimenting with adding role through message reactions

bot.on('messageReactionAdd', async (reaction, user) => {
  // Specify the role 'Alerts' to be added         
  let role = message.guild.roles.find(role => role.name === 'Alerts');
  if (message.channel.name !== 'alerts') return message.reply(':x: Please react in the #alerts channel');
  message.member.addRole(role);
});

This snippet is from my bot.js file. It requires users to react in a specified channel in order to receive the 'Alerts' role.

Answer №1

Without a clear statement of the issue or what is working and not working, I will make an educated guess based on some key points in your code.

It seems like you are trying to access properties of a variable called message, however, you have not defined or set this variable in your provided code. It is possible that you actually want to reference the message to which a reaction has been added. In order to achieve this, you should utilize the MessageReaction parameter available in the messageReactionAdd event as reaction.

To correct this, replace instances of message.<something> with

reaction.message.<something>
throughout your code snippet.

Furthermore, adding the role Alerts directly to message.member may not have the desired outcome, as it would assign the Alerts role to the author of the original message rather than the user who reacted. To address this issue, you need to first locate the member in the guild corresponding to the reacting user and then assign them the Alerts role. This involves utilizing the User object and identifying the appropriate Member, as roles can only be added to Member objects. Below is a code snippet to guide you in the right direction:

// Obtain and store the guild (server) where the message was sent.
const guild = reaction.message.guild;

const memberWhoReacted = guild.members.find(member => member.id === user.id);

memberWhoReacted.addRole(role);

Answer №2

Attempting to access the message.member variable without prior definition of message.

Answer №3

For those using version 12 of Discord, the previous methods may not function properly. I have made some updates for anyone who is in need.

const Discord = require('discord.js');
const client = new Discord.Client({ partials: ['MESSAGE', 'CHANNEL', 'REACTION'] }); //Using partials is recommended in v12 to ensure all reactions are stored
const prefix = "-";

client.on('messageReactionAdd', async (reaction, user) => {
    if (reaction.partial) {
        try {
            await reaction.fetch(); 
        } catch (error) {
            console.error('Fetching message failed: ', error);
            return;
        }
    }
    if (!user.bot) {
        if (reaction.emoji.id == yourEmojID) { 

            const role = reaction.message.guild.roles.cache.find(r => r.id === yourRoleID); 

            const { guild } = reaction.message;

            const member = guild.members.cache.find(member => member.id === user.id);

            member.roles.add(role); 
        }
    }
})

Answer №4

Here's a quick response, although it may be delayed. I will update the solution using Discord.js v.12.x (or equivalent to Discord.js Master)

bot.on('messageReactionAdd', async (reaction, user) => {
 // Check for the specific reaction
 if (reaction.id === '<The ID of the Reaction>') {
  // Define the role to be added when reacting
  let role = message.guild.roles.cache.find((role) => role.name === 'Alerts');
  if (message.channel.name !== 'alerts') {
   message.reply(':x: You need to visit the #alerts channel');
  } else {
   message.member.addRole(role.id);
  }
 }
});

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