Algolia <-> Firebase cloud functions

Useful library to keep your Firebase Database data in sync with Algolia for easy search.

Installation

In your functions directory:

 npm install --save algolia-firebase-functions 

Usage

To use this library in your Functions, first of all you need to set environmental variables for Algolia to initialize connection. Grab your API keys here first.

Open Terminal, go to your functions directory and input these commands:

firebase functions:config:set algolia.app="<YOUR-ALGOLIA-APP-ID>"
firebase functions:config:set algolia.key="<YOUR-ALGOLIA-APP-PUBLIC-KEY>"
firebase functions:config:set algolia.index="<YOUR-ALGOLIA-INDEX-NAME>"

Then, in your functions' index.js file, paste the following lines:

const algoliasearch = require('algoliasearch');
const algoliaFunctions = require('algolia-firebase-functions');

const algolia = algoliasearch(functions.config().algolia.app,
                              functions.config().algolia.key);
 const index = algolia.initIndex(functions.config().algolia.index);

 exports.syncAlgoliaWithFirebase = functions.database.ref('/myref/{childRef}').onWrite(
    event => algoliaFunctions.syncAlgoliaWithFirebase(index, event);
 );

And redeploy your functions:

firebase deploy --only functions

Now, after any changes made with your references, it will be sent to Algolia, so you'll be sure that users can search on the newest data.