Hookbox is another server that runs in parallel to your regular webserver that takes care of handling long running requests. An introduction and installation instructions can be found at http://hookbox.org/docs/intro.html.
Hookbox is written in python and depends on setuptools for installation. The fastest way to install hookbox is to type:
# easy_install hookbox
If you are missing python or setuptools, please refer to the following links:
To confirm your installation succeeded, type:
# hookbox --help
The API documentation is split into three parts:
Hooks that modules can implement
These correspond to http://hookbox.org/docs/webhooks.html. They don't match up exactly, as the Hookbox module customizes the api to be more Drupalish.
Functions in Hookbox
Every rest api call from http://hookbox.org/docs/rest.html has been implemented as a function in the Hookbox module in the format, hookbox_[function name].