Developer's Guide

Welcome to Google App Engine! This developer's guide contains everything you need to know to build scalable web applications using Google technology.

This guide contains the following sections:

• Introduction
  • What Is Google App Engine?, an introduction to App Engine's features and services
  • Getting Started, a quick tutorial introducing the App Engine APIs with a working example. Start here if this is your first time using App Engine.
• APIs
  • The Python Runtime, about the Python environment in which your app runs; CGI, sandbox features, application caching, logging
  • Datastore API, all about the scalable datastore and how to use it effectively
  • Users API, integrating your app with Google Accounts
  • URL Fetch API, accessing other Internet hosts from your app
  • Mail API, sending email from your app
• Tools and Configuration
  • The webapp Framework, a simple foundation for web applications
  • Configuring an App, all about app.yaml
  • Configuring Indexes, all about index.yaml
  • The Dev Web Server, simulating App Engine on your computer with dev_appserver.py
  • Uploading an App, updating the public version of your app with appcfg.py
  • The Admin Console, managing and monitoring your app's traffic and logs, switching between major versions