MYSQL over http?

[dambsst]

Hello All,

A quick introduction: These last days I have been trying to use GAE
and datastore, in order to create forms and update data in a mysql
database. The purpose is a sort of booking system, and I wished to
replace MySQL with datastore.

Because we can not share a datastore between several apps I tried to
give them the same name but different version, so they share the same
datastore but the apps need to be restarted each time to see the
changes done by others apps in the datastore.

So then I used App3 and urlfetch, it is nice but I didn't find a
convenient way to parse the strings receive into my datastore models.

So I switched to remote_api, above point is solved but then it is not
possible to close the STUB and the rpc:not possible to do any
self.redirect('/') or use the datastore of the apps.

So at this point I don't want anymore to replace MySQL with datastore
for main storage, if my apps could load some table from MySQL at the
begining and save the changes done when the user close the page it
would be enough and great.
AppRocket seems to do sth like that but I don't succeed, and I wonder
how it can connect to a MySQL over http? Do I need to install a sort
of webserver on the MySQL server to allow a GAE apps to read and write
from it?

If someone could inform me I would really appreciate.

Thanks and have a nice day,

Damien