curl --request GET \
  --url https://api.yorlet.com/v1/invoices/upcoming \
  --header 'Authorization: <api-key>'

{
  "id": "<string>",
  "created": 123,
  "object": "invoice",
  "application": "<string>",
  "assignee": "<string>",
  "billing_reason": "manual",
  "collection_method": "charge_automatically",
  "credit_grant": "<string>",
  "credit_grant_creation": {
    "enabled": true,
    "credit_grant_data": {
      "applicability_config": {
        "limits": {
          "max_credit_per_invoice_item": 123
        }
      },
      "name": "<string>"
    }
  },
  "currency": "<string>",
  "custom_fields": [
    {
      "name": "<string>",
      "value": "<string>"
    }
  ],
  "customer": "<string>",
  "customer_address": {
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "country": "<string>",
    "postal_code": "<string>",
    "state": "<string>"
  },
  "customer_email": "<string>",
  "customer_name": "<string>",
  "default_payment_method": "<string>",
  "description": "<string>",
  "discount": {},
  "discount_amount": 123,
  "due_date": 123,
  "ending_balance": 123,
  "finalized_at": 123,
  "footer": "<string>",
  "from_invoice": {
    "action": "<string>",
    "invoice": "<string>"
  },
  "hosted_invoice_url": "<string>",
  "issuer": {
    "type": "owner",
    "owner": "<string>"
  },
  "last_finalization_error": {
    "code": "<string>",
    "message": "<string>"
  },
  "late_payment_failure_invoice": "<string>",
  "latest_revision": "<string>",
  "marked_uncollectible_at": 123,
  "next_payment_attempt": 123,
  "number": "<string>",
  "number_transfer_reference": "<string>",
  "off_platform_reference": "<string>",
  "optimized_collection_date": 123,
  "optimized_collection_reason": "bacs_debit",
  "paid": true,
  "paid_at": 123,
  "paid_off_platform": true,
  "payment_settings": {
    "payment_method_types": [
      "autogiro"
    ]
  },
  "period": {
    "end": 123,
    "start": 123
  },
  "source_dispute": "<string>",
  "starting_balance": 123,
  "status": "draft",
  "subscription": "<string>",
  "transaction": "<string>",
  "transfer_error": {
    "message": "<string>",
    "reason": "<string>"
  },
  "voided_at": 123,
  "line_items": [
    {
      "id": "<string>",
      "created": 123,
      "object": "invoice_item",
      "amount": 123,
      "apply_after": 123,
      "credit_amount": 123,
      "currency": "<string>",
      "customer": "<string>",
      "description": "<string>",
      "discount_amount": 123,
      "invoice": "<string>",
      "price_data": {
        "amount": 123,
        "currency": "<string>",
        "recurring": {
          "interval": "<string>",
          "interval_count": 123
        },
        "tax_percent": 50,
        "type": "recurring"
      },
      "price": "<string>",
      "proration_amount": 123,
      "tax_percent": 50,
      "total_credit_grant_amount": 123,
      "transfer_destination": "<string>",
      "type": "charge",
      "unit": "<string>",
      "account": "<string>",
      "deleted": false,
      "metadata": {},
      "transfer_behavior": "automatic"
    }
  ],
  "account": "<string>",
  "deleted": false,
  "amount_due": 0,
  "amount_paid": 0,
  "amount_remaining": 0,
  "applied_balance": 0,
  "apply_customer_balance": false,
  "attempt_count": 0,
  "attempted": false,
  "auto_advance": false,
  "late_payment_failure": false,
  "metadata": {},
  "part_payment_amount": 0,
  "pending_part_payment": false,
  "pending_transaction": false,
  "post_payment_credit_notes_amount": 0,
  "pre_payment_credit_notes_amount": 0,
  "subtotal": 0,
  "tax": 0,
  "total": 0,
  "total_excluding_tax": 0,
  "total_pretax_credit_amounts": [],
  "total_tax_amounts": [],
  "transfer_data": []
}