You can sign up for a Partner account on partners.shopify.com. If you already have a Shopify partner account and organization that you can use for this workshop, you can skip this.

Note: Even if you already have a Shopify development store, you should create a new one for this workshop, to ensure you have the necessary settings and test data.

1. From the Shopify Partners portal, navigate to Stores > Add store > Create development store.
2. It's important for this workshop that you select the correct options when creating your store:
   • For Development store use, select Create a store to test and build.
   • You may use whatever Store Name you like.
   • For Which build do you want to test?, select Developer Preview > Checkout Extensibility.
   • For Data and configurations, select Start with test data.
3. After creating your development store, the store admin will open. Hover over the Online Store sales channel and click the 👁️ icon to open your store.

1. Ensure you have a recent version of Node.js installed.
2. Use the following command to create a copy of the app we will be using for this workshop:

   npm init @shopify/app@pre -- --template https://github.com/nickwesselman/polyglot-functions/app --name polyglot-functions
   

3. This will create an app in a folder called polyglot-functions. Navigate into it.

   cd polyglot-functions
   

4. Delete the completed functions in the extensions folder – no cheating. 😇

   rm -rf extensions
   

5. Start the app development mode and follow the prompts:

   npm run dev
   

   • Open Partners and log in, if prompted.
   • Select the correct partner organization, if prompted.
   • When asked, Create this project as a new app on Shopify?, select Yes.
   • Keep the default app name, polyglot-functions.
   • If asked, Which store would you like to use to view your project?, select the store created in the previous step.
   • If asked, Have Shopify automatically update your app's URL?, select Always.
6. Once your app is running and logs are streaming, press p to open your browser, or copy/paste the provided Preview URL.
7. The app installation page will open. Click Install app.

You should see the home page of the app:

You're doing great! For this workshop, the discount logic we will be implementing in each language is:

IF customer has VIP metafield with a value of 'true'
AND products in their cart with tag X have a total of more than $Y
THEN discount the order by Z%

But first, you will need to ensure that your store has a customer and products that meet these requirements. The app you just installed added a customer metafield. Metafields are custom data fields that stores and apps can add to various domain objects in Shopify.

1. In your store admin, navigate to Customers > Karine Ruby.
2. Under Metafields, click Show all.
3. For VIP Customer, select True.
4. Click Save.

Next, let's add the needed tag to a product.

1. Still in your store admin, navigate to Products > The Complete Snowboard.
2. In the right column, under Tags, add vip.
3. Click Save.

Nice work. If you like, you can go back to your online store. If this is a group workshop, you can explore the products and checkout process while everyone else finishes!