redux-action-host

Redux middleware to add the hostname of the originating computer to action metadata.

npm install --save redux-action-host

Motivation

When writing networked applications that replay actions against multiple redux stores, it is desireable to know which host the action originated on.

Usage

import { createStore, applyMiddleware } from 'redux';
import actionHost from 'redux-action-host';
import reducers from './reducers';
import actionTypes from './constants/actionTypes';

const store = createStore(reducers, applyMiddleware(actionHost()));

All actions will now be dispatched with the hostname of the originating computer on the action meta.

{
  type: 'ACTION_TYPE',
  meta: {
    hostname: 'ubuntu'
  }
}

Advanced Usage

The hostname of the originating computer is retreived via the os module when in node.js. Do remove this dependency when using the library in the browser, supply the hostname to be used as the first parameter to the middleware.

const store = createStore(reducers, applyMiddleware(actionHost('ubuntu')));

If the middleware is not invoked with a hostname when used in the browser, a random hostname will be generated.

{
  type: 'ACTION_TYPE',
  meta: {
    hostname: 'browser-0f11ce'
  }
}