Hello,
the API documentation for the PHP programming language is horrible. It’s hard to understand anything.
I need to migrate a lot of data from OXID Shop System to Shopify. 
Actually, I am trying to create some metafields for collections. We want to display a text for search engines on the collection page below, under the pagination.
In the first step, I just want to create/define some meta fields and then assign the values for each collection in a for-each loop.
This is the documentation:
https://shopify.dev/docs/api/admin-rest/2024-01/resources/metafield#post-blogs-blog-id-metafields
The title is “Create meta fields”.
It’s not clear what they mean by “create”.
Create an assignment → assign / set a value to an object
or
Create a definition → create a new meta field with name and description to assign/set the values later?
Or does this call automatically check if the definition already exists and create it if not.
It is extremely wired. Why do I have the option to specify a description as a parameter that is never used, and why can’t I specify a name?
I have uploaded 2 screenshots:
