The ATL COM module generalInvoiceRequest is capable of
generating electronic and printed invoices & reminders
How to do a Restful LoadXML

 
The API documentation for the Restful LoadXML command seems to be somewhat cryptic and incomprehensible as several inquiries suggest. The following attempts to shed more light on the API definition:

[POST] /baseURL/IGeneralInvoiceRequestManager/LoadXML?param
[param] pIGeneralInvoiceRequestManager=longValue&
bstrInputFile=urlEncodedString
+
<application/octet-stream> input_file_upload_stream

where [param] are added as reuest.query parts and <application/octet-stream> means and binary stream upload.
 
The above definition can be transcoded into a curl.exe command as follows, given that:
  • there exist a XML input file: d:\test\_inv.xml
  • the current sessionID is pIGeneralInvoiceRequestManager=37963652 

curl.exe -v -X POST "http://localhost:35340/generalInvoiceRequestManagerServer450/ ^
    IGeneralInvoiceRequestManager/LoadXML?pIGeneralInvoiceRequestManager=37963652& ^
    bstrInputFile=_inv.xml"  ^
    --header "Content-Type: application/octet-stream"  ^
    --data-binary "@d:\test\_inv.xml"

This command produces an output like: 


D:\test>curl.exe -v -X POST "http://localhost:35340/generalInvoiceRequestManagerServer450/IGeneralInvoiceRequestManager/LoadXML?pIGeneralInvoiceRequestManager=37963652&bstrInputFile=_inv.xml"  ^
More? --header "Content-Type: application/octet-stream"  ^
More? --data-binary "@d:\test\_inv.xml"
Note: Unnecessary use of -X or --request, POST is already inferred.
* Host localhost:35340 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
*   Trying [::1]:35340...
* Connected to localhost (::1) port 35340
* using HTTP/1.x
> POST /generalInvoiceRequestManagerServer450/IGeneralInvoiceRequestManager/LoadXML?pIGeneralInvoiceRequestManager=37963652&bstrInputFile=_inv.xml HTTP/1.1
> Host: localhost:35340
> User-Agent: curl/8.13.0
> Accept: \*/\*
> Content-Type: application/octet-stream
> Content-Length: 17372
>
* upload completely sent off: 17372 bytes
< HTTP/1.1 200 OK
< Server: Microsoft-HTTPAPI/2.0
< Content-Length: 136
< Content-Type: application/json
< Date: Thu, 07 Aug 2025 12:03:42 GMT
<
<
< JSON returned:
< {"pIGeneralInvoiceRequest":37874932,"pIGeneralInvoiceResult":37829508,"pbStatus":true,"pbstrUsedSchema":"generalInvoiceRequest_450.xsd"}