Create a product

The product is written to the accounting platform first. With an external_id that a product already carries, that product is updated and the answer is 200; otherwise a product is created and the answer is 201. A product number names one product: where the platform already holds a product under the number, that product is answered with 200 and nothing is written to it. One create runs at a time under an external_id: a second while the first is still running is answered 409 CREATE_IN_PROGRESS with Retry-After, and the same request after that interval answers the product the first created.

curl -X POST "https://example.com/products" \  -H "Content-Type: application/json" \  -d '{    "product_number": "string",    "name": "string",    "account_number": 1,    "unit": "string",    "default_price": 0  }'

{  "object": "product",  "id": "string",  "external_id": "string",  "product_number": "string",  "name": "string",  "account_number": -9007199254740991,  "account_ref": "string",  "unit": "string",  "default_price": 0,  "quantity": 0,  "comments": "string",  "external_reference": "string",  "updated_at": "string"}