Facilitating the spread of knowledge and innovation in professional software development



Choose your language

InfoQ Homepage News AppengineJS, a JavaScript Port of the Google App Engine Python SDK

AppengineJS, a JavaScript Port of the Google App Engine Python SDK


AppengineJS is an open source JavaScript port of the Google App Engine Python SDK helpful to create web applications that can be deployed on GAE infrastructure accessing Google’s persistent storage and services.

While AppengineJS is a JavaScript port of the App Engine Python API, it actually runs on Rhino, the Mozilla JavaScript engine which is written in Java. So, JavaScript code using AppengineJS is actually deployed on JVM. The authors have chosen this solution because they think “the design of the Python API is closer to the JavaScript world.”

The Python to JavaScript porting has been done using the JS naming conventions, namely the Python this_is_a_name identifier became thisIsAName, and all delete() functions have been renamed to remove() to avoid collision with the delete keyword.

The following APIs have been ported so far:

The GitHub project contains the source code, a link to documentation, and links to two demo examples using AppengineJS: a JSGI application using the Datastore API (tar.gz), and a blog powered by AppengineJS and Nitro (tar.gz).

We need your feedback

How might we improve InfoQ for you

Thank you for being an InfoQ reader.

Each year, we seek feedback from our readers to help us improve InfoQ. Would you mind spending 2 minutes to share your feedback in our short survey? Your feedback will directly help us continually evolve how we support you.

Take the Survey

Rate this Article


Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p


Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.