How to upload file to box.com using box api in appian

Question

Hello All, 
 We have to build an application for uploading the files to box. I came to know that box is providing its own API which we can use in appian to achieve this functionality. As I don't have any clear workaround behind this, Can someone please guide me the overall steps about how we can accomplish this feature? 
 
 Thanks in advance

Scott Tomer · Accepted Answer

Upload the Private and Public key files (PEM format) to Appian and pass the document IDs to the createtoken() function. This should be the same key files you used in the Box Developer Console. Either the ones it generated for you, or the ones you generated and uploaded to Box. When you upload the key files to their console, it assigns a kid (Key ID) which is also used in the plugin functions.

Scott Tomer · Answer

The text contained in the "privateKey" part of that JSON can be copied and pasted into a plain text file and named something like privatekey.pem. That text should start with something like "-----BEGIN ENCRYPTED PRIVATE KEY----" and end with "-----END ENCRYPTED PRIVATE KEY-----". Also copy the text for the public key from the console by clicking on the Public Key ID link and paste it into a plain text file and name it something like publickey.pem. Then, upload those files to a knowledge center / folder in Appian. Use the IDs assigned by Appian to the uploaded files when calling the plugin functions.