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Using pyFF

pyFF has two command-line tools: pyff and pyffd.

.. code-block:: bash

  # pyff --loglevel=INFO pipeline.fd [pipeline2.fd]
  # pyffd --loglevel=INFO pipeline.fd [pipeline2.fd]

pyff operates by setting up and running "pipelines". Each pipeline starts with an empty "active repository" - an
in-memory representation of a set of SAML metadata documents - and an empty "working document" - a subset of the
EntityDescriptor elements in the active repository.

The pyffd tool starts a metadata server with an HTTP-based interface for viewing and downloading metadata. The
HTTP interface can produce *XML*, *HTML* and *JSON* output (as well as other formats with a bit of configuration) and
implements the MDX specification for online SAML metadata query.

Pipeline files are *yaml* documents representing a list of processing steps:

.. code-block:: yaml

    - step1
    - step2
    - step3

Each step represents a processing instruction. pyFF has a library of built-in instructions to choose from that
include fetching local and remote metadata, xslt transforms, signing, validation and various forms of output and

Processing steps are called pipes. A pipe can have arguments and options:

.. code-block:: yaml

    - step [option]*:
        - argument1
        - argument2

    - step [option]*:
        key1: value1
        key2: value2

Typically options are used to modify the behaviour of the pipe itself (think macros), while arguments provide
runtime data to operate on.

Documentation for each pipe is in the :py:mod:`pyff.pipes.builtins` Module. Also take a look at the :doc:`examples`.