Restlet POSTing JSON to Appengine error

Question

We have a small app with Restlet on the GAE server and GWT and Android clients. Restlet serves GWT-serialized replies to GWT clients and JSON to Android clients.

All

Answer 1

You encountered a limitation of GAE that several Restlet users faced.

Some time ago, GAE stopped supporting accepting chunked HTTP entity. We reproduced this issue with both POST and PUT and raw GAE Servlets, so this isn't Restlet related. See GAE issue: http://code.google.com/p/googleappengine/issues/detail?id=129

The only workaround we found is to not chunk entities, meaning being able to compute their size in advance.

In Restlet 2.1 M3 version that we just released, we added a simple "entityBuffering" property on ClientResource to facilitate this (set to 'false' by default).

We are in the process of upgrading our "First Application" example to illustrate the workaround. We also had to cope with GWT 2.2 breaking compatibility with its previous GWT 2.1 core API, so Restlet 2.1 will only work on GWT.

Addition details are available on this page: http://wiki.restlet.org/docs_2.1/13-restlet/21-restlet/318-restlet/303-restlet.html

Best regards,

Jerome

Restlet ~ Founder and Technical Lead ~ http://www.restlet.org

Noelios Technologies ~ http://www.noelios.com