Open API for Google App Engine application upload/deployment?

[ZS]

I had an idea for creating a plug-in for a different IDE (not eclipse)
for uploading apps to GAE. Is there by any chance any documentation
for the API for that? So far I have seen that the only two ways to
upload an app are the command line and the plugin for eclipse...

[Tobias]

Hi ZS,

As far as I know, the appcfg service API is not documented anywhere. But you can fairly easy reengineer it by reading the client's code [1]. I've done that for implementing TyphoonAE's appcfg service that allows for uploading your app to TyphoonAE by using the original appcfg.py script from the SDK.

The appcfg service basically provides RPC-like web hooks for different tasks (phases) during the upload process. See some of the end-point URLs here [2]. For instance, let's take a look at the IndexDefinitionUpload class [3] of the original appcfg.py script. It implements the DoUpload method which actually makes a POST request to /api/datastore/index/add of the configured appcfg server while the payload contains the actual index definition as YAML. In this context, you might also want to have a look at the AbstractRpcServer [4].

Hope this helps,

Tobias

[1] http://code.google.com/p/googleappengine/source/browse/trunk/python/google/appengine/tools/appcfg.py

[2] http://code.google.com/p/typhoonae/source/browse/src/typhoonae/appcfg/service.py#466

[3] http://code.google.com/p/googleappengine/source/browse/trunk/python/google/appengine/tools/appcfg.py#621

[4] http://code.google.com/p/googleappengine/source/browse/trunk/python/google/appengine/tools/appengine_rpc.py#101