A httpx client with conda authentication and telemetry support.

Adapts conda's requests-based auth handler plugins to httpx, automatically loading conda-provided credentials as necessary.

Project Goals

• Provide a single httpx.Client and httpx.AsyncClient that authenticates to conda services, in the same way that conda's get_session(url) does but without requiring a separate client per URL.
• Support existing conda authentication plugins.
• Support other conda plugins that modify headers sent during requests, such as telemetry plugins.
• Improve efficiency of conda authentication by avoiding Channel() calls when possible.
• Avoid token-in-URL forms of authentication.
• Support truststore.
• Support proxy configuration from conda.
• Interoperate with Python software that wants a httpx client.
• Have excellent test coverage.

Conda features which can affect request headers

• Request Headers plugins, conda_session_headers, conda_request_headers as get_cached_*_headers() on CondaPluginManager
• Auth Handlers plugins, configurable per channel.
• CondaHttpAuth, predates the plugin API, supports binstar tokens and Proxy-Authorization.

Projects which can affect requests headers

• conda-anaconda-telemetry using conda_request_headers plugin hook.
• anaconda-auth, a CLI to set up authentication to Anaconda services. AnacondaAuthHandler loads the token.
• conda-auth