Upload a file

Before sending a fax you need to upload your files using this API. In order to upload your fax file, you have to send a multipart/form-data request with your file. Set the name to fax_file, filename to your file's name with extension, and the Content-Type to the file's MIME type. In most cases, the filename directive will be automatically added by your library of choice. If the upload was successful you would receive a file_path which you can use to send your fax. (Permitted scopes: fax:all:edit, fax:file:edit)