How to add roles when user reacts to specific message

Question

I need it so that a bot will send a message and if anyone on the server reacts to that message with a reaction it will give them a role.

I Have already tried multiple times, different code samples which allow reactions anywhere in the guild but i want it specific to one channel.

client.on("messageReactionAdd", (reaction, user) => {
  if (user.bot) return;
  const member = reaction.message.member
   switch (reaction.name) {
     case "????":
     member.addRole("597011179545690121").then((res) => {
       reaction.message.channel.send(`You've been given the \`${res.name}\` role!`)
     }).catch(console.error);
     break;
     case "????":
     member.addRole("597011179545690121").then((res) => {
       reaction.message.channel.send(`You've been given the \`${res.name}\` role!`)
     }).catch(console.error);
  };
})

client.on("messageReactionRemove", (reaction, user) => {
  if (user.bot) return;
  const member = reaction.message.member
  switch (reaction.name) {
case "emoji_name_1":
member.removeRole("roleID").then((res) => 
  reaction.message.channel.send(`You've been removed from the \`${res.name}\` role!`)
    }).catch(console.error);
    break;
    case "emoji_name_2":
    member.removeRole("someOtherRole").then((res) => {
      reaction.message.channel.send(`You've been removed from the \`${res.name}\` role!`)
    }).catch(console.error);
  };
})

I Want the outcome to be that the person reacts with say a smiley face and they get a certain role but they have to react to a certain message sent by the bot in its own dedicated channel same as pre-made bots such as Reaction Roles bot.

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Caltrop Caltrop · Accepted Answer · 2019-07-06T17:07:56

First we have to fetch our Message.

let channel_id = "ChanelID of message"; 
let message_id = "ID of message";



client.on("ready", (reaction, user) => {

client.channels.get(channel_id).fetchMessage(message_id).then(m => {
        console.log("Cached reaction message.");
    }).catch(e => {
    console.error("Error loading message.");
    console.error(e);
    });

Then we'll check if someone reacted to our message and give them the appropriate Role

client.on("messageReactionAdd", (reaction, user) => {
    if(reaction.emoji.id == "EMOJI ID HERE" && reaction.message.id === message_id) 
        {
            guild.fetchMember(user) // fetch the user that reacted
                .then((member) => 
                {
                    let role = (member.guild.roles.find(role => role.name === "YOUR ROLE NAME HERE"));
                    member.addRole(role)
                    .then(() => 
                    {
                        console.log(`Added the role to ${member.displayName}`);
                    }
                    );
                });
        }
}

I advise against using this code for multiple Roles at once as that would be rather inefficient.

How to add roles when user reacts to specific message

2 Answers