Client Configuration
====================

The configuration for Backend.AI API includes the endpoint URL prefix, API
keypairs (access and secret keys), and a few others.

There are two ways to set the configuration:

1. Setting environment variables before running your program that uses this SDK.
   This applies to the command-line interface as well.
2. Manually creating :class:`~ai.backend.client.config.APIConfig` instance and creating sessions with it.

The list of configurable environment variables are:

* ``BACKEND_ENDPOINT``
* ``BACKEND_ENDPOINT_TYPE``
* ``BACKEND_ACCESS_KEY``
* ``BACKEND_SECRET_KEY``
* ``BACKEND_VFOLDER_MOUNTS``

Please refer the parameter descriptions of :class:`~ai.backend.client.config.APIConfig`'s constructor
for what each environment variable means and what value format should be used.