Shopify Multipass module for Node.js
Shopify provides a mechanism for single sign-on known as Multipass. Multipass uses an AES encrypted JSON hash and multipassify provides functions for generating tokens
More details on Multipass with Shopify can be found here.
npm install multipassify
To use Multipass an Enterprise / Plus plan is required. The Multipass secret can be found in your shop Admin (Settings > Checkout > Customer Accounts). Make sure "Accounts are required" or "Accounts are optional" is selected and Multipass is enabled.
var Multipassify = require('multipassify');
// Construct the Multipassify encoder
var multipassify = new Multipassify("SHOPIFY MULTIPASS SECRET");
// Create your customer data hash
var customerData = { email: 'test@example.com', remote_ip:'USERS IP ADDRESS', return_to:"http://some.url"};
// Encode a Multipass token
var token = multipassify.encode(customerData);
// Generate a Shopify multipass URL to your shop
var url = multipassify.generateUrl(customerData, "yourstorename.myshopify.com");
// Generates a URL like: https://yourstorename.myshopify.com/account/login/multipass/<MULTIPASS-TOKEN>