Showing different discounts based on where the customer is redirected from

Technical Q&A
1

Dear all,

I would like to show different discounted prices based on the social media post the customer is redirected from.

Suppose a customer is redirected to the product page from social media A, discount code A will apply and the discounted price will show.

Similarly, when a customer is redirected from social media B, discount code B will apply.

I only know that the discount will show when you enter the discount code on the Shopify checkout page.

Is there a way to show the discounted price on the product page?

It seems I can get the discount code information using the Admin API, but then I have to do all the calculation and currency change ourselves?

For the storefront api, do I have to create a checkout using checkoutCreate every time to get the information?

Thanks a lot.