Issue while using Upload API from Servicenow

Hello Experts,

We are trying to upload a file from servicenow to BOX by using REST Process.

As per the developer.box.com we are passing the parameters name and parent.id from servicenow.

but we are getting 405 error.

When we try with postman we are uploading the file by passing parameters name , parent.id and file path......... we are not aware how to pass file path in JSON Format in servicenow

Please guide me here.....