Metadata-Version: 1.0
Name: django-json-rpc
Version: 0.6.1
Summary: A simple JSON-RPC implementation for Django
Home-page: http://github.com/samuraisam/django-json-rpc/tree/master
Author: Samuel Sutch
Author-email: samuraiblog@gmail.com
License: MIT
Download-URL: http://github.com/samuraisam/django-json-rpc/tree/master
Description: 
        Features:
        * Simple, pythonic API
        * Support for Django authentication
        * Supports JSON-RPC 1.0, 1.1, 1.2 and 2.0 Spec
        * Proxy to test your JSON Service
        * Run-time type checking
        * Graphical JSON-RPC browser and web console
        * Provides system.describe
        
        
        **The basic API**
        
        ::
        
        ## myproj/myapp/views.py
        
        from jsonrpc import jsonrpc_method
        
        @jsonrpc_method('myapp.sayHello')
        def whats_the_time(request, name='Lester'):
        return "Hello %s" % name
        
        @jsonrpc_method('myapp.gimmeThat', authenticated=True)
        def something_special(request, secret_data):
        return {'sauce': ['authenticated', 'sauce']}
        
        
        ## myproj/urls.py
        
        from django.conf.urls.defaults import *
        from jsonrpc import jsonrpc_site
        import myproj.myapp.views # you must import the views that need connected
        
        urlpatterns += patterns('',
        url(r'^json/', jsonrpc_site.dispatch, name="jsonrpc_mountpoint"),
        url(r'^json/browse/', 'jsonrpc.views.browse', name="jsonrpc_browse"), # for the graphical browser/web console only, omissible
        (r'^json/(?P<method>[a-zA-Z0-9.]+)$', jsonrpc_site.dispatch) # for HTTP GET only, also omissible
        )
        
        
        **To test your service**
        
        You can test your service using the provided graphical browser and console,
        available at http://YOUR_URL/json/browse/ (if using the url patterns from above)
        or with the included ServiceProxy::
        
        >>> from jsonrpc.proxy import ServiceProxy
        
        >>> s = ServiceProxy('http://localhost:8080/json/')
        
        >>> s.myapp.sayHello('Sam')
        {u'error': None, u'id': u'jsonrpc', u'result': u'Hello Sam'}
        
        >>> s.myapp.gimmeThat('username', 'password', 'test data')
        {u'error': None, u'id': u'jsonrpc', u'result': {u'sauce': [u'authenticated', u'sauce']}}
        
        Method Browser:
        
        .. image:: http://samuraiblog.com/wordpress/wp-content/uploads/2009/11/jsonrpcbrowserscreen.png
        
        We add the `jsonrpc_version` variable to the request object. It be either
        '1.0', '1.1' or '2.0'. Arg.
        
        Guide
        =====
        
        Adding JSON-RPC to your application
        -----------------------------------
        
        **1. Install django-json-rpc**
        
        ::
        
        git clone git://github.com/samuraisam/django-json-rpc.git
        cd django-json-rpc
        python setup.py install
        
        # Add 'jsonrpc' to your INSTALLED_APPS in your settings.py file
        
        **2. Write JSON-RPC methods**
        
        ::
        
        from jsonrpc import jsonrpc_method
        
        @jsonrpc_method('app.register')
        def register_user(request, username, password):
        u = User.objects.create_user(username, 'internal@app.net', password)
        u.save()
        return u.__dict__
        
        @jsonrpc_method('app.change_password', authenticated=True)
        def change_password(request, new_password):
        request.user.set_password(new_password)
        request.user.save()
        return u.__dict__
        
        **3. Add the JSON-RPC mountpoint and import your views**
        
        ::
        
        from jsonrpc import jsonrpc_site
        import app.views
        
        urlpatterns = patterns('',
        url(r'^json/$', jsonrpc_site.dispatch, name='jsonrpc_mountpoint'),
        # ... among your other URLs
        )
        
        
        The jsonrpc_method decorator
        ----------------------------
        Wraps a function turns it into a json-rpc method. Adds several attributes to
        the function speific to the JSON-RPC machinery and adds it to the default
        jsonrpc_site if one isn't provided. You must import the module containing these
        functions in your urls.py.
        
        ``jsonrpc.jsonrpc_method(name, authenticated=False, safe=False, validate=False)``
        
        Arguments::
        
        name
        
        The name of your method. IE: `namespace.methodName` The method name
        can include type information, like `ns.method(String, Array) -> Nil`.
        
        authenticated=False
        
        Adds `username` and `password` arguments to the beginning of your
        method if the user hasn't already been authenticated. These will
        be used to authenticate the user against `django.contrib.authenticate`
        If you use HTTP auth or other authentication middleware, `username`
        and `password` will not be added, and this method will only check
        against `request.user.is_authenticated`.
        
        You may pass a callablle to replace `django.contrib.auth.authenticate`
        as the authentication method. It must return either a User or `None`
        and take the keyword arguments `username` and `password`.
        
        safe=False
        
        Designates whether or not your method may be accessed by HTTP GET.
        By default this is turned off.
        
        validate=False
        
        Validates the arguments passed to your method based on type
        information provided in the signature. Supply type information by
        including types in your method declaration. Like so:
        
        @jsonrpc_method('myapp.specialSauce(Array, String)', validate=True)
        def special_sauce(self, ingredients, instructions):
        return SpecialSauce(ingredients, instructions)
        
        Calls to `myapp.specialSauce` will now check each arguments type
        before calling `special_sauce`, throwing an `InvalidParamsError`
        when it encounters a discrepancy. This can significantly reduce the
        amount of code required to write JSON-RPC services.
        
        site=default_site
        
        Defines which site the jsonrpc method will be added to. Can be any
        object that provides a `register(name, func)` method.
        
        
        Using type checking on methods (Python 2.6 or greater)
        ------------------------------------------------------
        
        When writing web services you often end up manually checking the
        types of parameters passed. django-json-rpc provides a way to eliminate
        much of that code by specifying the types in your method signature. As
        specified in the JSON-RPC spec the available types are ``Object Array Number
        Boolean String Nil`` and ``Any`` meaning any type::
        
        @jsonrpc_method('app.addStrings(arg1=String, arg2=String) -> String', validate=True)
        def add_strings(request, arg1, arg2):
        return arg1 + arg2
        
        However contrived this example, a lot of extra information about our
        function is available. The ``system.describe`` method will automatically
        be able to provide more information about the parameters and return type.
        Provide ``validate=True`` to the ``jsonrpc_method`` decorator and you can be
        guaranteed to receive two string objects when ``add_strings`` is called.
        
        **Note:** Return type information is used only for reference, return value
        types are not checked.
        
        Types can be specified a number of ways, the following are all equivalent::
        
        # using JSON types:
        @jsonrpc_method('app.findSelection(query=Object, limit=Number)')
        
        # using Python types:
        @jsonrpc_method('app.findSelection(query=dict, limit=int)')
        
        # with mixed keyword parameters
        @jsonrpc_method('app.findSelection(dict, limit=int)')
        
        # with no keyword parameters
        @jsonrpc_method('app.findSelection(dict, int)')
        
        # with a return value
        @jsonrpc_method('app.findSelection(dict, int) -> list')
        
        Using the browser
        -----------------
        
        To access the browser simply add another entry to your ``urls.py`` file. Make
        sure to include the name attribute of each url::
        
        urlpatterns += patterns('',
        url(r'^json/browse/$', 'jsonrpc.views.browse', name='jsonrpc_browser')
        )
        
        
        Enabling HTTP-GET
        -----------------
        
        JSON-RPC 1.1 includes support for methods which are accessible by HTTP GET
        which it calls idempotent. Add the following to your ``urls.py`` file to set
        up the GET URL::
        
        urlpatterns += patterns('',
        (r'^json/(?P<method>[a-zA-Z0-9.-_]+)$', jsonrpc_site.dispatch),
        )
        
        Each method that you want to be accessible by HTTP GET must also be marked safe
        in the method decorator::
        
        @jsonrpc_method('app.trimTails(String)', safe=True)
        def trim_tails(request, arg1):
        return arg1[:5]
        
        You can then call the method by loading ``/jsonrpc/app.trimTails?arg1=omgnowai``
        
        Using authentication on methods
        -------------------------------
        
        There is no specific support for authentication in the JSON-RPC spec beyond
        whatever authentication the transport offers. To restrict access to methods
        to registered users provide ``authenticated=True`` to the method decorator. Doing
        so will add two arguments to the beginning of your method signature, ``username``
        and ``password`` (and always in that order). By default, the credentials are
        authenticated against the builtin ``User`` database but any method can be used::
        
        @jsonrpc_method('app.thupertheecrit', authenticated=True)
        def thupertheecrit(request, value):
        p = request.user.get_profile()
        p.theecrit = value
        p.save()
        return p.__dict__
        
        Using your own authentication method::
        
        def mah_authenticate(username, password):
        return CustomUserClass.authenticate(username, password)
        
        @jsonrpc_method('app.thupertheecrit', authenticated=mah_authenticate)
        def thupertheecrit(request, value):
        request.user.theecrit = value
        request.user.save()
        return request.user.__dict__
        
        In case authentication is handled before your method is called, like in some
        middleware, providing ``authenticated=True`` to the method decorator will only
        check that ``request.user`` is authenticated and won't add any parameters to
        the beginning of your method.
        
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Web Environment
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Topic :: Software Development :: Libraries :: Python Modules
