Send data from external website (non-shopify) to shopify and process it

[andres_r]

Hello,

i am trying to figure out if it is possible to click a link on an external page (non-shopify) and then get redirected to a shopify cart and simultaneously add 5 products to the cart?

So my main problem is to send data like product.ids from Page A (non-shopify) to Page B (Shopify store) and use those product.ids to add them all to the cart. Also the data needs to be dynamically readable by shopify since it would be a configurator on the external page.  

For visualistation, i want the process f.e. to be like this:

External page [product.id1,product.id2,product.id3 ....] --> Shopify --> match ids --> Send all products to cart --> show Checkout --> Checkout --> get redirected to External page

Is there a way to do this?