curl --request GET \
  --url https://api.sandbox.co.in/gst/compliance/tax-payer/gstrs/gstr-1/ecoma/{year}/{month} \
  --header 'authorization: <authorization>' \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-api-version: <x-api-version>'

"{\n    \"transaction_id\": \"{{$randomUUID}}\",\n    \"code\": 200,\n    \"data\": {\n        \"status_cd\": \"0\",\n        \"error\": {\n            \"message\": \"No document found in selected financial year. Either this document exists in a different financial year or the document number might have been amended earlier. Search with latest amended document.\",\n            \"error_cd\": \"RET11417\"\n        }\n    },\n    \"timestamp\": {{$timestamp}}000\n}"