Merge pull request iotaledger#119 from iotaledger/release/2.0.3

Release/2.0.3

MANIFEST.in

@@ -1,4 +1,8 @@
+include docs/conf.py
+include docs/make.bat
+include docs/Makefile
 include LICENSE
 include README.rst
+recursive-include docs *.rst
 recursive-include examples *.py
 recursive-include test *.py *.csv

README.rst

@@ -45,12 +45,14 @@ To install this extension, use the following command::
    pip install pyota[ccurl]
 
 
+.. _readme-installing-from-source:
+
 Installing from Source
 ======================
 
-1. `Create virtualenv`_ (recommended, but not required).
-2. ``git clone https://github.com/iotaledger/iota.lib.py.git``
-3. ``pip install -e .``
+#. `Create virtualenv`_ (recommended, but not required).
+#. ``git clone https://github.com/iotaledger/iota.lib.py.git``
+#. ``pip install -e .``
 
 Running Unit Tests
 ------------------
@@ -66,12 +68,33 @@ PyOTA is also compatible with `tox`_::
 =============
 Documentation
 =============
-For the full documentation of this library, please refer to the
-`official API`_
+PyOTA's documentation is available on `ReadTheDocs`_.
+
+If you are :ref:`installing from source <readme-installing-from-source>`, you
+can also build the documentation locally:
+
+#. Install extra dependencies (you only have to do this once)::
+
+      pip install '.[docs-builder]'
+
+   .. tip::
+
+      To install the CCurl extension and the documentation builder tools
+      together, use the following command::
+
+         pip install '.[ccurl,docs-builder]'
+
+#. Switch to the ``docs`` directory::
+
+      cd docs
+
+#. Build the documentation::
 
+      make html
 
 .. _Create virtualenv: https://realpython.com/blog/python/python-virtual-environments-a-primer/
 .. _PyOTA Bug Tracker: https://github.com/iotaledger/iota.lib.py/issues
+.. _ReadTheDocs: https://pyota.readthedocs.io/
 .. _Slack: https://slack.iota.org/
 .. _dedicated forum: https://forum.iota.org/
 .. _official API: https://iota.readme.io/

docs/adapters.rst

@@ -0,0 +1,221 @@
+Adapters and Wrappers
+=====================
+
+The ``Iota`` class defines the API methods that are available for
+interacting with the node, but it delegates the actual interaction to
+another set of classes: Adapters and Wrappers.
+
+AdapterSpec
+-----------
+
+In a few places in the PyOTA codebase, you may see references to a
+meta-type called ``AdapterSpec``.
+
+``AdapterSpec`` is a placeholder that means "URI or adapter instance".
+
+For example, the first argument of ``Iota.__init__`` is an
+``AdapterSpec``. This means that you can initialize an ``Iota`` object
+using either a node URI, or an adapter instance:
+
+-  Node URI: ``Iota('http://localhost:14265')``
+-  Adapter instance: ``Iota(HttpAdapter('http://localhost:14265'))``
+
+Adapters
+--------
+
+Adapters are responsible for sending requests to the node and returning
+the response.
+
+PyOTA ships with a few adapters:
+
+HttpAdapter
+~~~~~~~~~~~
+
+.. code:: python
+
+    from iota import Iota
+    from iota.adapter import HttpAdapter
+
+    # Use HTTP:
+    api = Iota('http://localhost:14265')
+    api = Iota(HttpAdapter('http://localhost:14265'))
+
+    # Use HTTPS:
+    api = Iota('https://service.iotasupport.com:14265')
+    api = Iota(HttpAdapter('https://service.iotasupport.com:14265'))
+
+``HttpAdapter`` uses the HTTP protocol to send requests to the node.
+
+To configure an ``Iota`` instance to use ``HttpAdapter``, specify an
+``http://`` or ``https://`` URI, or provide an ``HttpAdapter`` instance.
+
+The ``HttpAdapter`` raises a ``BadApiResponse`` exception if the server
+sends back an error response (due to invalid request parameters, for
+example).
+
+Debugging HTTP Requests
+^^^^^^^^^^^^^^^^^^^^^^^
+
+.. code:: python
+
+    from logging import getLogger
+
+    from iota import Iota
+
+    api = Iota('http://localhost:14265')
+    api.adapter.set_logger(getLogger(__name__))
+
+To see all HTTP requests and responses as they happen, attach a
+``logging.Logger`` instance to the adapter via its ``set_logger``
+method.
+
+Any time the ``HttpAdapter`` sends a request or receives a response, it
+will first generate a log message. Note: if the response is an error
+response (e.g., due to invalid request parameters), the ``HttpAdapter``
+will log the request before raising ``BadApiResponse``.
+
+.. note::
+
+    ``HttpAdapter`` generates log messages with ``DEBUG`` level, so make sure that your logger's ``level`` attribute is set low enough that it doesn't filter these messages!
+
+SandboxAdapter
+~~~~~~~~~~~~~~
+
+.. code:: python
+
+    from iota import Iota
+    from iota.adapter.sandbox import SandboxAdapter
+
+    api =\
+      Iota(
+        SandboxAdapter(
+          uri = 'https://sandbox.iotatoken.com/api/v1/',
+          auth_token = 'demo7982-be4a-4afa-830e-7859929d892c',
+        ),
+      )
+
+The ``SandboxAdapter`` is a specialized ``HttpAdapter`` that sends
+authenticated requests to sandbox nodes.
+
+.. note::
+
+    See `Sandbox <https://dev.iota.org/sandbox/>`_ Documentation for more information about sandbox nodes.
+
+Sandbox nodes process certain commands asynchronously. When
+``SandboxAdapter`` determines that a request is processed
+asynchronously, it will block, then poll the node periodically until it
+receives a response.
+
+The result is that ``SandboxAdapter`` abstracts away the sandbox node's
+asynchronous functionality so that your API client behaves exactly the
+same as if it were connecting to a non-sandbox node.
+
+To create a ``SandboxAdapter``, you must provide the URI of the sandbox
+node and the auth token that you received from the node maintainer. Note
+that ``SandboxAdapter`` only works with ``http://`` and ``https://``
+URIs.
+
+You may also specify the polling interval (defaults to 15 seconds) and
+the number of polls before giving up on an asynchronous job (defaults to
+8 times).
+
+.. note::
+
+    For parity with the other adapters, ``SandboxAdapter`` blocks until it receives a response from the node.
+
+        If you do not want ``SandboxAdapter`` to block the main thread, it is recommended that you execute it in a separate thread or process.
+
+
+MockAdapter
+~~~~~~~~~~~
+
+.. code:: python
+
+    from iota import Iota
+    from iota.adapter import MockAdapter
+
+    # Inject a mock adapter.
+    api = Iota('mock://')
+    api = Iota(MockAdapter())
+
+    # Seed responses from the node.
+    api.adapter.seed_response('getNodeInfo', {'message': 'Hello, world!'})
+    api.adapter.seed_response('getNodeInfo', {'message': 'Hello, IOTA!'})
+
+    # Invoke API commands, using the adapter.
+    print(api.get_node_info()) # {'message': 'Hello, world!'}
+    print(api.get_node_info()) # {'message': 'Hello, IOTA!'}
+    print(api.get_node_info()) # raises BadApiResponse exception
+
+``MockAdapter`` is used to simulate the behavior of an adapter without
+actually sending any requests to the node.
+
+This is particularly useful in unit and functional tests where you want
+to verify that your code works correctly in specific scenarios, without
+having to engineer your own subtangle.
+
+To configure an ``Iota`` instance to use ``MockAdapter``, specify
+``mock://`` as the node URI, or provide a ``MockAdapter`` instance.
+
+To use ``MockAdapter``, you must first seed the responses that you want
+it to return by calling its ``seed_response`` method.
+
+``seed_response`` takes two parameters:
+
+-  ``command: Text``: The name of the command. Note that this is the
+   camelCase version of the command name (e.g., ``getNodeInfo``, not
+   ``get_node_info``).
+-  ``response: dict``: The response that the adapter will return.
+
+You can seed multiple responses for the same command; the
+``MockAdapter`` maintains a queue for each command internally, and it
+will pop a response off of the corresponding queue each time it
+processes a request.
+
+Note that you have to call ``seed_response`` once for each request you
+expect it to process. If ``MockAdapter`` does not have a seeded response
+for a particular command, it will raise a ``BadApiResponse`` exception
+(simulates a 404 response).
+
+Wrappers
+--------
+
+Wrappers act like decorators for adapters; they are used to enhance or
+otherwise modify the behavior of adapters.
+
+RoutingWrapper
+~~~~~~~~~~~~~~
+
+.. code:: python
+
+    from iota import Iota
+    from iota.adapter.wrappers import RoutingWrapper
+
+    api =\
+      Iota(
+        # Send PoW requests to local node.
+        # All other requests go to light wallet node.
+        RoutingWrapper('https://service.iotasupport.com:14265')
+          .add_route('attachToTangle', 'http://localhost:14265')
+          .add_route('interruptAttachingToTangle', 'http://localhost:14265')
+      )
+
+``RoutingWrapper`` allows you to route API requests to different nodes
+depending on the command name.
+
+For example, you could use this wrapper to direct all PoW requests to a
+local node, while sending the other requests to a light wallet node.
+
+``RoutingWrapper`` must be initialized with a default URI/adapter. This
+is the adapter that will be used for any command that doesn't have a
+route associated with it.
+
+Once you've initialized the ``RoutingWrapper``, invoke its ``add_route``
+method to specify a different adapter to use for a particular command.
+
+``add_route`` requires two arguments:
+
+-  ``command: Text``: The name of the command. Note that this is the
+   camelCase version of the command name (e.g., ``getNodeInfo``, not
+   ``get_node_info``).
+-  ``adapter: AdapterSpec``: The adapter or URI to send this request to.