server.js

var express = require('express');
var cors = require('cors');
var Shopify = require('shopify-api-node');

var app = express();
var port = 3000;

// Shopify API
var shopify = new Shopify({
  shopName: 'liquify-scripts',
  apiKey: '7cb6bb9f126079ff603af945cb4ff2e8',
  password: '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'
});

app
  // Enable POST params
  .use(express.json())
  // Enable CORS
  .use(cors())
  // POST request which creates a product on the fly from POST params
  .post('/', (req, res) => {
    return shopify.product.create(req.body)
      .then((product) => {
        return res.json(product);
      })
      .catch((err) => console.log(err));

  })
  .listen(port, () => console.log(`Example app listening at http://localhost:${port}`));