Use config instead of code to automate processes.

With a process, you can do everything from creating new records, calling an Apex Method, to submitting a record for approval...

Check out this linked tutorial on the Lightning Process Builder.

What You Will Learn:

+ Install a private AppExchange package

+ Create a custom lightning process

+ Automate a chatter post

+ Use the process builder to create and update an unrelated record

+ Activate a lightning process

+ Test the lightning process in a mobile environment

Lightning Process Builder Tutorial