Reacting to messages

Making your bot react to a message is a bit more complicated than replying but that will be no problem for us.

Simply add a new command, you can use the base we provided in "Add simple commands".

Now change message.channel.sendMessage to message.react.

There are two kinds of emojis that you can use to react, custom emojis and standard emojis.

If you want to react with a custom emoji simply fill in the ID of your emoji like this:

message.react("01G7J9RTHKEPJM8DM19TX35M8N");   

To get the ID of a custom emoji just select it in the emoji picker and before sending it and copy the ID between the :'s.

If you want to react with a standard emoji you will have to encode it first using the encodeURIComponent() function:

message.react(encodeURIComponent("❤️"));    

The finished code should look something like this:

client.on("message", async (message) => {
    if (message.content === prefix + "react") {
        message.react(encodeURIComponent("❤️"));    
    }
});

Now just add this command to your bot like we did in "Add simple commands".