The full course is
due for release on Nov 19th now available.
I have taken the most common patterns from the different Dialogflow webhooks I have seen created by clients, coaching students as well as my website readers to come up with a lesson plan which covers enough material that you should be able to take the course and design whatever type of webhook you would like.
Here is the
planned syllabus (All Code Samples are in PHP programming language):
Click on this link to get $10 off the course until end of day Nov 20th 2018 UTC time.