curl --location --request POST 'https://api.freedompay.kz/v5/merchant/invoice/init' \
--form 'order_id="550e8400-e29b-41d4-a716-446655440000"' \
--form 'merchant_id=""' \
--form 'amount=""' \
--form 'description=""' \
--form 'invoice_method=""' \
--form 'currency=""' \
--form 'check_url="https://site.com/check"' \
--form 'result_url="https://site.com/result"' \
--form 'request_method=""'
<?xml version="1.0" encoding="UTF-8"?>
<root>
<status>string</status>
<invoice_status>string</invoice_status>
<error_code>0</error_code>
<error_description>string</error_description>
<invoice_id>0</invoice_id>
<invoice_methods>
<qr>string</qr>
</invoice_methods>
<dt>2019-08-24T14:15:22Z</dt>
</root>