curl --request POST \
  --url https://api.melso.ai/v1/companies/{company_id}/invoices/{invoice_id}/approval-link \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.melso.ai/v1/companies/{company_id}/invoices/{invoice_id}/approval-link"

headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, headers=headers)

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.melso.ai/v1/companies/{company_id}/invoices/{invoice_id}/approval-link', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "approval_url": "<string>",
  "version": "<string>"
}

{
  "error": "invalid token",
  "code": "unauthorized",
  "request_id": "req_01JAB3K9X2"
}

{
  "error": "invoice not found",
  "code": "not_found",
  "request_id": "req_01JAB3K9X2"
}

{
  "error": "The tax return changed or is not ready for approval",
  "code": "version_conflict",
  "request_id": "req_01JAB3K9X2"
}