I need to send a text file as an attachment to a post call, which is the only request data. Please let me know how can I send this via a REST step (POST call) in devtest. Also, kindly let me know if there are any other alternative steps for it.
In postman we have a section called 'form-data', where I can upload the text file and hit the POST url and get back the response. Please let me know how can I achieve this using Devtest.