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redux-keen

v0.2.1

Published

Redux middleware for sending analytics to Keen.

Downloads

373

Readme

redux-keen

npm version

Redux middleware for sending analytics to Keen IO.

Installation

npm install --save redux-keen

Usage

import keenAnalytics from 'redux-keen';
import Keen from 'keen-js';

let keenClient = new Keen({ projectId: 'YOUR_PROJECT_ID', writeKey: 'YOUR_WRITE_KEY' });
let keenMiddleware = keenAnalytics(keenClient);

The default export is a function requiring keen-js client instance. This function returns a middleware function, that can be applied using applyMiddleware from Redux.

If it receives an action whose meta property contains an analytics property with non-empty collection property, it will record the event in the Keen IO analytics.

Actions

An action that should be recorded to analytics MUST

  • have an analytics property inside its meta property
  • have a collection property inside its analytics property

and MAY

  • have an event property inside its analytics property

collection

The required collection property inside the analytics specifies the Keen IO event collection.

event

The optional event property inside the analytics contains the data of the Keen IO event.

An example of an action:

{
  type: ADD_TO_SHOPPING_CART,
  payload: item,
  meta: {
    analytics: {
      collection: "add_item_to_shopping_cart"
    }
  }
}

An example with optional property event:

{
  type: ADD_TO_SHOPPING_CART,
  payload: item,
  meta: {
    analytics: {
      collection: "add_item_to_shopping_cart",
      event: {
        item: {
          title: item.title,
          itemId: item.itemId
        }
      }
    }
  }
}

Globals

When setting up analytics with Keen IO, we often want to send some common data (hereinafter referred to as globals) with each event (e.g. device information, geolocation, authenticated user, etc.).

The default function that creates keenMiddleware accepts an optional third parameter getGlobals. If provided, getGlobals must be a function returning a javascript object. It is called everytime the middleware intercepts a an action with valid analytics property.

let keenMiddleware = keenAnalytics(projectId, writeKey, getGlobals);

The redux state is passed as parameter to the provided function. You can use it for example for getting the authenticated user information (see the example bellow).

function getLocationPayload() {
  return {
    ip_address: '${keen.ip}',
    keen: {
      addons: [
        {
          name: 'keen:ip_to_geo',
          input: {
            ip: 'ip_address'
          },
          output: 'ip_geo_info'
        }
      ]
    }
  };
}

function getUserPayload(state) {
  const { isSignedIn, user } = state.session;
  if (!isSignedIn) {
    return {};
  }

  let userGlobals = {
    user: {
      name: `${user.firstName} ${user.lastName}`,
      userId: user.profileId
    }
  };

  return userGlobals;
}

export default function getGlobals(state) {
  const location = getLocationPayload();
  const user = getUserPayload(state);

  return {
    ...location,
    ...user
  };
}

If getGlobals provided the globals are sent by the middleware with each event, even when the action has a valid analytics property with the event property omitted.