How-to Guides

Using Java Libraries

• Using Java Libraries

  Use any Java compatible library with the App Engine flexible environment and Apache Maven.

Configuring Your Application

• Organizing YAML Configuration Files

  Understand how to manage your application using YAML configuration files.

• Using app.yaml

  Specify your Java runtime configuration, including versions and URLs.

• Scheduling Cron Jobs

  Configure regularly scheduled tasks that operate at defined times or regular intervals.

• Configuring Datastore Indexes with index.yaml

  Define query indexes for Cloud Datastore.

• Configuring the web.xml deployment descriptor

  Use web.xml to deploy a Java app to a runtime that includes the jetty9/servlet3 server.

• Using Custom Domains and SSL

  Use a custom domain with an App Engine app and set up SSL.

Using Apache Maven

• Using Apache Maven

  Set up Apache Maven for your project.

Connecting to an Instance with SSH

• Connecting to an Instance with SSH

  Learn how to unlock and connect to an instance in your app using SSH.

Integrating with Google Analytics

• Integrating with Google Analytics

  Collect, store, process, and report on these user-interactions in your application.

Serving Static Files

• Serving Static Files

  Learn how to serve static files such as JavaScript, images, and CSS from your app.

Storing Data and Files

• Using Cloud Datastore (NoSQL application data)

  Store application data from your App Engine app in Cloud Datastore.

• Using Cloud SQL for MySQL

  Store application data from your App Engine app in Cloud SQL for MySQL.

• Using Cloud SQL for PostgreSQL

  Store application data from your App Engine app in Cloud SQL for PostgreSQL.

• Using Cloud Storage (cloud file hosting)

  Store and serve files, such as movies or images or other static content.

• Using Third-Party Databases

  Choose from a variety of third-party databases to use with your applications such as Redis, MongoDB, PostgreSQL, Cassandra, and Hadoop.

Debugging Your App

• Writing Application Logs

  Learn how to write application logs and view request and response details in application and system logs.

• Debugging an Instance

  Connect to an instance hosting your application for debugging purposes.

• Understanding Performance with Stackdriver Profiler

  Collect CPU usage and memory-allocation information from your application and view it in the Google Cloud Platform Console.

Send & Receive Pub/Sub Messages

• Send & Receive Pub/Sub Messages

  Use reliable, many-to-many, asynchronous messaging between applications.

Authenticating Users

• Authenticating Users

  Learn about user authentication options for App Engine.

Authorizing Apps

• Authorizing Apps

  Learn how to use service accounts to authorize applications.

Emailing and Messaging

• Sending Emails with Mailgun

  Use the third-party service Mailgun and the Mailgun API for bulk email.

• Sending Emails with Mailjet

  Use the third-party service Mailjet and the Mailjet API for bulk email.

• Sending Emails with SendGrid

  Use the third-party service Sendgrid and the Sendgrid API for bulk email.

• Using SMS and Voice Services via Twilio

  Embed voice, VoIP, and messaging into applications using Twillio.

Migrating Services from the Standard Environment to the Flexible Environment

• Migrating Services from the Standard Environment to the Flexible Environment

  Migrate specific services and APIs from the standard environment to the flexible environment.

Upgrading to the App Engine Flexible Environment Latest Release

• Upgrading to the App Engine Flexible Environment Latest Release

  Upgrade to the latest release of the App Engine flexible environment by updating your `app.yaml` and accounting for breaking changes from the beta release.

Running App Engine Apps on GKE

• Running App Engine Apps on GKE

  Run your App Engine flexible environment application on GKE without changing your code.