Your categories are will be saved in FireStore. FireStore is more advanced than Firebase Realtime Database. 

You should already have created a Firebase Project. Automatically you get a FireStore project also. 

But thanks to the included FireBase admin panel, you will manage your data through it.

If you have successfully followed the install procedure from you should have a menu similar to this one.

Step 1. Go inside the categories

Step 2. Adding your first category

When you go for the first time in your collections, a pop-up will appear that allows you to add your first collection. 

Pressing on the ADD button will add the first collection. 

Step 3. Managing your collections

You can add / delete / modify your collections. In the search bar, you can filter your collections. 

After you have added some of your collection, it is time to add your menu items.

Each of the menu items should be categorized. 

Step 1. Go inside menu items 

Step 2. Add your first product 

As for the categories, you will be asked to add your first product. 

Step 3. Manage your products

You can preview / edit / delete / add products.

Each product has image, description etc.. all displayed in the details window on each product.

Step 3. Setting up prices

To learn more about the pricing model for the product read the dedicated section on how to set up the prices.

The sync script is a node js project. It runs on any node enabled environment.

You can run it locally or on a server. ( Node Server / Hosting is preferred )

https://www.netguru.co/blog/nodejs-hosting-services

https://hostadvice.com/hosting-companies/nodejs/

Environment setup

First, you will need to set up your environment. Then will need Node + NPM installation. You will also need GIT on your system.

But first, upload the script you downloaded from codecanyon on any location you want to run it. 

Install node and npm: Download it from here.

Install GIT: Download it from here.

To verify your installation run

node --version
npm --version
git --version

Installing process manager

We suggest pm2 for process management. Follow that guide and install the pm2 globally, we will need it later.

npm install pm2 -g

Installing the required node modules

To install the required node modules, go in your script folder ( where package.json is ) and run the following command.

npm install

The required node modules will be installed. 

Let's get started. Create an account in Firebase with your google account. 

( You may use existing firebase db )

Create Firebase Project. 

Then go in Project settings, and click on "Add Firebase to your web app"

Then copy the config string. 

var settings={
  serverPort:8000,
  appName:"Shopify Sync",
  shopifySite:"https://mobidonia.myshopify.com",  //Link to your shopify store
  firestoreCollectionForCategories:"product_collection_shopify", //Where to save the collections
  firestoreCollectionForProduct:"products_shopify", //Where to save the products
  cronInterval:"00 59 20 * * 1-5", //How ofter should the cron job run https://github.com/kelektiv/node-cron
}

The above code sets up the script. What you have to do is just replace shopifySite with the link to your Shopify site.

The cronInterval set how often the script should be called.

In the example above is Monday - Saturday at 20:59

Read more here https://github.com/kelektiv/node-cron

Before you have installed pm2. With this program, the node js program will run when you close your terminal.

To see what process is running enter

pm2 list

To start the process enter

pm2 start index.js --name shopify

This will start the process

To stop the process enter

pm2 stop shopify