Accessing the smartthing api

Hi ,

I tried to follow the exact steps as mentioned in the documentation to access the endpoint api
however i am getting error ,
It will be great if you could help me out here with ruby\node.js :slight_smile:

this is the link that i am following:-

You may want to consider using the new API

I tried but this link is of no use :frowning:

i have to access endpoint api of the application i created in smartthing id.