An Overview of App Engine
An explanation of App Engine services, the building blocks of App Engine applications.
App Engine Flexible Environment for Users of App Engine Standard Environment
An introduction to the flexible environment for those who are familiar with the standard environment, highlighting the similarities and key differences, and providing general architectural recommendations for applications that use both environments.
The Go Flexible Environment
A description of the Go flexible environment for App Engine and how it works.
How Requests are Routed
How HTTP requests from users and other applications can be routed using dispatch files.
How Requests are Handled
How requests to your application are understood and handled within App Engine.
How Instances are Managed
How Google manages the health checks, uptime, restarts, and location of your instances.