Listening to events emitted by other emitters

By default, Sapphire's event emitter is your client. However, for advanced use cases, you can specify a different emitter.

One method is to set the name a Client property containing the emitter like so:

JavaScript

const { Listener } = require('@sapphire/framework');

class RawGuildMemberAddListener extends Listener {
  constructor(context, options) {
    super(context, {
      ...options,
      emitter: 'ws',
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

module.exports = {
  RawGuildMemberAddListener
};

ESM

import { Listener } from '@sapphire/framework';

export class RawGuildMemberAddListener extends Listener {
  constructor(context, options) {
    super(context, {
      ...options,
      emitter: 'ws',
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

TypeScript

import { Listener } from '@sapphire/framework';

export class RawGuildMemberAddListener extends Listener {
  public constructor(context: Listener.Context, options: Listener.Options) {
    super(context, {
      ...options,
      emitter: 'ws',
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

The other way is to specify an emitter directly instead of a property name:

JavaScript

const { Listener, container } = require('@sapphire/framework');

class RawGuildMemberAddListener extends Listener {
  constructor(context, options) {
    super(context, {
      ...options,
      emitter: container.client.ws,
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

module.exports = {
  RawGuildMemberAddListener
};

ESM

import { Listener, container } from '@sapphire/framework';

export class RawGuildMemberAddListener extends Listener {
  constructor(context, options) {
    super(context, {
      ...options,
      emitter: container.client.ws,
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

TypeScript

import { Listener, container } from '@sapphire/framework';

export class RawGuildMemberAddListener extends Listener {
  public constructor(context: Listener.Context, options: Listener.Options) {
    super(context, {
      ...options,
      emitter: container.client.ws,
      event: 'GUILD_MEMBER_ADD'
    });
  }
}

The code is equivalent to the following:

JavaScript

client.ws.on('GUILD_MEMBER_ADD', (data) => {
  // `data` here is the raw packet
});

ESM

client.ws.on('GUILD_MEMBER_ADD', (data) => {
  // `data` here is the raw packet
});

TypeScript

client.ws.on('GUILD_MEMBER_ADD', (data) => {
  // `data` here is the raw packet
});