Google App Engine standard now supports Java 8

[Thanasis Delenikas]

== thank you ==

https://cloudplatform.googleblog.com/2017/06/Google-App-Engine-standard-now-supports-Java-8.html

:)

[Attila-Mihaly Balazs]

+1! Party! :-)

Now could we please get connections from GAE standard to the Postgres instances? :-)

[Ludovic Champenois]

On 6/29/17 5:43 AM, Attila-Mihaly Balazs wrote:

+1! Party! :-)

Now could we please get connections from GAE standard to the Postgres instances? :-)

Sure, can you try https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine-java8/postgres and see if it works for you?

Ludo

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[Attila-Mihaly Balazs]

Thank you for the reply.

I'm not all that familiar with Java on GAE (I've been using Python mostly), so I can't tell if that project is for GAE Standard or Flex. However note the following observations:

- The documentation [1] says: "Note: Connection from an App Engine standard environment application to a PostgreSQL instance is not supported."
- Just theorizing (haven't tried it actually) with Java it could work since the JDBC driver is pure-java (AFAIK) and I could enable socket support on GAE standard (the project has to have billing enabled) I could connect to the Postgres CloudSQL instance like any other application over the internet
- The same would possibly work for go-lang (I don't know how the Postgres driver for Go works)
- With python the Postgres library has binary parts and can't be used on App Engine standard unless explicit support is added by Google (like there is for MySQL)

Attila

[1] https://cloud.google.com/sql/docs/postgres/connect-app-engine

[Jeff Schnitzer]

I’m using Cloud Postgres from Java8 using the vanilla JDBC driver and DBCP for pooling. AFAICT it works fine.

Jeff

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[Kenworth (Google Cloud Platform)]

I successfully managed to connect a GAE standard application (Java 8) to Cloud SQL for PostgreSQL instance using the sample project that Ludovic provided [1]. Google App Engine using PostgreSQL is currently not supported on Go, but you can use Python or Java as an alternative. Article [2] describes how to connect Cloud SQL for PostgreSQL instance from an App Engine application using Python or Java. Please note that Connecting from App Engine to Cloud SQL for PostgreSQL is still a Beta release. We’ll update the doc[3] once the connections to PostgreSQL are supported for all GAE standard runtimes.

[1] https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine-java8/postgres  

[2] https://cloud.google.com/appengine/docs/flexible/python/using-cloud-sql-postgres

[3] https://cloud.google.com/sql/docs/postgres/connect-app-engine

[Attila-Mihaly Balazs]

Again, I think you are mixing GAE standard and flexible here. Article [2] you posted is for GAE Flexible, not standard.