How to determine craftable item?

API Discussion
1

Previously item endpoint returns source='CREATED_BY_SPELL'.
Now i see no information to distinguish crafted item.

There is a recipe endpoint, but i don’t know where to get recipe id for an item, or maybe a recipe id list. I don’t like to iterate from 1 to 999999.

Spell endpoint seems useless too. It returns 404 on crafted spells.
https://www.wowhead.com/spell=178497

Any ideas how to decide that an item can be created by profession or other spell?

2

Look through the professions and loop over each profession skill. The profession skills contains the recipe id’s for that skill tier.