Database Secrets Deprecated
Database secrets have been deprecated. Are there any plans to update this tutorial to using the new methods of authentication with the Particle Electron?

I want to know this too!
@ytianhui turns out that although deprecated, database secrets still function. I've been using the tutorial as it is now and it's working great.
You are no longer able to go to that tab and select the database secret. I've chosen a bunch of other keys from the various pages, but all lead to : "error":"Could not parse auth token."
Do you have any idea on how to find the right auth key?
@rknall Were you able to find a solution?
Edit: It looks like the database secrets page moved to Settings > Service Accounts > Database Secrets. Source