eventsplus

Connect your microservices through events

Installation

$ npm install eventsplus

Features

• Listen to and emit events across files with a shared event emitter
• Detect if there are no listeners for an event
• Use case: detect a missing module in your app
• Chain listeners together, where the last listener can access the previous listener
• Use case: check user permissions in one listener before allowing user actions in a lower-level listener
• When chaining listeners using on(eventName), previous listeners added through once(eventName) will remain alive after the first re-use. This will be resolved in future versions
• Fast: EventsPlus uses EventEmitter3 instead of Node.js's built-in event module to gain a large speed boost.

Examples

Basic

This example demonstrates listening to and emitting events between different files.

Listener chains

This example demonstrates how to establish a chain of listeners on a single event.

Upcoming features

• Listeners return promises
• Run listeners in parallel

Versioning

This module follows semantic versioning.

Changelog

1.2.1 (July 30, 2016)

• Bug fixed: package.json was missing a dependency reference to EventEmitter3.

1.2.0 (July 30, 2016)

• Replacing Node.js's Event module with EventEmitter3 for increased speed and portability

1.1.0 (July 29, 2016)

• Created a listener chain of responsibility. Each listener can access the previous listener