How to read uploaded binary file and parameters in it

[tqq1994516]

When I use robyn, I upload files through the sending interface, and the server receives the files.
When the file is UTF-8 encoded, request.body is a string, and you can see the form field, field value and file name sent by the client, file content-type and content.
But if it is not utf-8, request.body is an int list. How should I parse this object to get the form fields and file information inside?