Eris Reactions

Eris Reactions is a simple to use, lightweight and blazing fast Reaction Handler for the Node.js Discord library Eris.

It supports two ways of handling reactions:

• Bulk collecting a specified amount of reactions over a set period of time
• Continuous listening for new reactions being added, which can be highly useful for implementing Embed pagination

The API is pretty straight forward and only requires the native event emitter as a dependency for blazing fast event emitting.

Getting Started

Simply install Eris Reactions via NPM npm install eris-reactions and require it wherever you need it!

API

Bulk collecting a specified amount of reactions and a set maximum time:

ReactionHandler.collectReactions(message, filter, options);

• Eris.Message message - An Eris message emitted from the messageCreate event.
• Function filter - A filter function which is passed a userID as a Discord Snowflake.
• Object options - An object containing following options:
  • Number options.maxMatches - The maximum amount of reactions to collect.
  • Number options.time - The maximum amount of time the collector should run for in milliseconds.

The result is an Array of resultObject containing all collected reaction results within the specification.

• Object resultObject - The result object
  • Eris.Message | Object resultObject.msg - The message on which the user reacted.
  • Object resultObject.emoji - An emoji object containing:
    • String resultObject.emoji.id - The emoji ID (Which will be null for non-custom emojis).
    • String resultObject.emoji.name - The emoji name.
  • String resultObject.userID - The user ID of the user who has reacted (as a Discord Snowflake).

Setting up a listener for continuous Reaction listening:

new ReactionHandler.continuousReactionStream(message, filter, permanent, options);

• Eris.Message message - An Eris message emitted from the messageCreate event.
• Function filter - A filter function which is passed a userID as a Discord Snowflake.
• Boolean permanent - Whether or not the listener should stay attached or be automatically removed after use.
• Object options - An object containing following options:
  • Number options.maxMatches - The maximum amount of reactions to collect.
  • Number options.time - The maximum amount of time the collector should run for in milliseconds.

In addition to that a temporary listener needs to be attached to listen for the reacted event:

.on('reacted', eventListener);

• String 'reacted' - The event name. This MUST stay the same!
• Function eventListener - The event listener which is passed an event object.
  • Object eventObject - The object emitted from the reacted event.
    • Eris.Message | Object eventObject.msg - The message on which the user reacted.
    • Object eventObject.emoji - An emoji object containing:
      • String eventObject.emoji.id - The emoji ID (Which will be null for non-custom emojis).
      • String eventObject.emoji.name - The emoji name.
    • String eventObject.userID - The user ID of the user who has reacted (as a Discord Snowflake).

Examples

Bulk collecting reactions:

const Eris = require('eris');
const ReactionHandler = require('eris-reactions');
const bot = new Eris('BOT_TOKEN');

bot.on('ready', () => {
    console.log('Ready!');
});

bot.on('messageCreate', async (message) => {
    if (message.content === '!test') {

        // This will collect exactly 5 reactions over the course of 1 minute
        const reactions = await ReactionHandler.collectReactions(
            message, 
            (userID) => userID === message.author.id, 
            { maxMatches: 5, time: 60000 }
        );
        
        console.log(reactions);
    }
});

bot.connect();

Continuously listening for reactions:

const Eris = require('eris');
const ReactionHandler = require('eris-reactions');
const bot = new Eris('BOT_TOKEN');

bot.on('ready', () => {
    console.log('Ready!');
});

bot.on('messageCreate', async (message) => {
    if (message.content === '!test') {

        // This will continuously listen for 100 incoming reactions over the course of 15 minutes
        const reactionListener = new ReactionHandler.continuousReactionStream(
            message, 
            (userID) => userID === message.author.id, 
            false, 
            { maxMatches: 100, time: 900000 }
        );

        reactionListener.on('reacted', (event) => {
            message.channel.createMessage('You reacted with: ' + event.emoji.name);
        });
    }
});

bot.connect();

License

This repository makes use of the MIT License and all of its correlating traits.

While it isn't mandatory, a small credit if this repository was to be reused would be highly appreciated!