[SOLVED] How to get sales tax calculations with Stripe API?

How to get sales tax calculations with Stripe API?

I am following the steps from this guide for my checkout process so I can use Stripe to calculate the sales tax for me based on the country and postal code.

I created a customer and pending subscription as per steps 3 and 4. At this point, I want to get the response from the command below which should tell me the automatic_tax status (complete, requires_location_inputs, or failed). However, I get an error in response instead. When I go to my Stripe dashboard, I do see an invoice that is marked as open. Why is the response not as expected?

COMMAND

curl https://api.stripe.com/v1/invoices/upcoming \
  -u sk_test_<STRIPE API TEST KEY>: \
  -d "customer"="{{ CUSTOMER_ID }}" \
  -d subscription_items[0][price]="{{ PRICE_ID }}" \
  -d subscription_items[0][quantity]=1 \
  -d "automatic_tax[enabled]"=true

OUTPUT

{
 "error": {
    "code": "resource_missing",
    "doc_url": "https://stripe.com/docs/error-codes/resource-missing",
    "message": "No such invoice: 'upcoming'",
    "param": "id",
    "type": "invalid_request_error"
  }
}

Solution

The upcoming invoice endpoint is a GET endpoint only. Ref

If you add --request GET to your curl command, that should work. It's currently trying to POST to update an existing invoice with id 'upcoming' which is not valid.