i'm using a third party freight management system on my ecommerce website (it has its own app on the actual e-commerce platform i'm using).
I need to migrate the store to wordpress + woocommerce, and need to use its API to calculate shipping rates (product and checkout page form). It has it own shipping criteria that i configured on their system. Simply need to get the user ZIP code and send to the API, with the rate and delivery days.
Any way to do this? I was told to create a plugin to interact with the APIs, but i dont know how to create one. I hope someone could help me.