Update Product Variant Issue with Admin API

[autonomi]

I am attempting to use the PUT Admin API for product variants located here:

https://shopify.dev/docs/api/admin-rest/2024-01/resources/product-variant#put-variants-variant-id

I am using a python client with the requests library (using requests directly is much smoother than trying to navigate the python client imo). This is not an import detail but one that informs the code:

To test the endpoint, I did a get request on a given variant, which returned appropriately (I have my headers and base url in a predefined object):

variant_id = 47772111503633
headers = {"Content-Type": "application/json", **shop.auth_headers}
endpoint = f"{shop.base_url}variants/{variant_id}.json"
response = requests.get(endpoint, headers=headers)
response.json()

{'variant': {'id': 47772111503633,
  'product_id': 9061036785937,
  'title': 'Default Title',
  'price': '6.99',
  'sku': '',
  'position': 2,
  'inventory_policy': 'deny',
  'compare_at_price': None,
  'fulfillment_service': 'manual',
  'inventory_management': 'shopify',
  'option1': 'Default Title',
  'option2': None,
  'option3': None,
  'created_at': '2023-12-06T11:39:04-06:00',
  'updated_at': '2023-12-06T11:39:04-06:00',
  'taxable': True,
  'barcode': '',
  'grams': 113,
  'image_id': None,
  'weight': 0.25,
  'weight_unit': 'lb',
  'inventory_item_id': 49754018152721,
  'inventory_quantity': 1,
  'old_inventory_quantity': 1,
  'requires_shipping': True,
  'admin_graphql_api_id': 'gid://shopify/ProductVariant/47772111503633'}}

Now, when I go to place a PUT request to the same place, I am getting an issue:

variant_id = 47772111503633
payload = {
    "variant": {
        "id": variant_id,
        "price": "7.99"
    }
}

headers = {"Content-Type": "application/json", **shop.auth_headers}
endpoint = f"{shop.base_url}variants/{variant_id}.json"
response = requests.put(endpoint, json=payload, headers=headers)

I have tried every version of “id”, “variant_id”, dumping the json to a string, etc, and this continues to give me the same error. It seems that there is either be something I’m missing, or this specific end point has a bug. Can anyone please assist?

[Liam]

Hi Autonomi - is this only happening with variants? IE can you successfully make a put request to update a product title?

[autonomi]

Hi Liam,

No, it appears that put requests in general are not working for me:

[Liam]

Can you try a put request in curl in your terminal? I’m thinking there could be something related to Python which could be causing this?

eg:

curl -d '{"variant":{"id":808950810,"price":"new_price_here"}}' \
-X PUT "https://your-development-store.myshopify.com/admin/api/2024-01/variants/808950810.json" \
-H "X-Shopify-Access-Token: {access_token}" \
-H "Content-Type: application/json"

[autonomi]

Hi Liam,

The command went through (I think) but the price did not update

It doesn’t make sense that this would be a python issue though, as I am using the requests library and hitting the API directly, not using a python client.

[autonomi]

Hi Liam,

The issue seems to be pervasive across all POST and PUT requests. Get requests work fine, but the same exact request with the same exact parameters as either of these gives me a “Not Found”. I have a critical application that is dependent on this. Any ideas?

[Liam]

Does your app have the write_products scope?

[autonomi]

Hi Liam,

Yes, I have all scopes, including write_products.

Thank you,

Issac

[autonomi]

I figured it out myself. For anyone who needs this thread: The trick is that the aliased version of the API DOES work for GET requests, but DOES NOT work for POST and PUT requests. You have to use the original https://{your_store}.myshopify.com as your base URL. You cannot use the base url you set in your DNS. This appears to be new behavior as of the change to inventory_level operations in the REST Admin docs.