Information regarding the https://graph.api.smartthings.com/ide/app/saveFromCode URL

|I’m trying to reverse the code for my project work. The code is trying to send POST request to the |I’m trying to reverse the code for my project work. The code is trying to send POST request to the https://graph.api.smartthings.com/ide/app/saveFromCode
to add the smartapp code automatically. But, I get HTTP 400 error and method not allowed. I tried reading the documentation as the IDE interface has changed. I could not get any information. Can you please let me know how can I access the https://graph.api.smartthings.com/ide/app/saveFromCode URL or any information regarding the contents in the URL. Has the URL address changed?|