You can clone the final project to look at the source and play around with it:
This intro shows how to create simple Hello world pages using code.
First, we look at using several file types for directly returning the response.
Then, we create apps that define the
.Request method separately.
Then we see how we can create instances of these applications.
We look at building longer type chains.
Finally, we turn our project into a package that can be installed and used on other websites as well.