I want to upload products from different platforms via API

I want to upload products from different platforms via API. I have no idea how to upload Product on my shopify from other platform on this platform have 9k+ products. I want to upload in bulk with products images.

Hi @fancydressinuk ,
Synchronizing products via API requires development, there is no fast or simple way to to it, someone has to implement script or some application which fetch products from your source and upload them via API to your shopify store.
If it’s single time task and if it’s possible I suggest you to export catalog from your source and use that export file to upload those products into your shopify store, there are apps on shopify app store which allows you to import products from file in any format, this would be faster and cheaper solution. One of such apps is Feeds Bridge https://apps.shopify.com/feeds-bridge . Anyway if getting products via API is the only way possible for you, and you need developer for this task, you can contact me via email: dev.feedsbridge@gmail.com and we could think of possible custom app development solutions.