In postman, set method type to POST.
Then select
Body -> form-data -> Enter your parameter name (file according to your code)
On the right side of the Key field, while hovering your mouse over it, there is a dropdown menu to select between Text/File. Select File, then a “Select Files” button will appear in the Value field.
For rest of “text” based parameters, you can post it like normally you do with postman. Just enter parameter name and select “text” from that right side dropdown menu and enter any value for it, hit send button. Your controller method should get called.