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https://github.com/null-none/django-jsonrpc

Django JSON-RPC
https://github.com/null-none/django-jsonrpc

json-rpc json-rpc2 python python3

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Django JSON-RPC

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Django JSON-RPC
===============

A basic JSON-RPC Implementation for your Django-powered sites.

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.urls import include, path, re_path

from jsonrpc.site import jsonrpc_site
from jsonrpc import views

urlpatterns = (
path('^json/browse/', views.browse, name='jsonrpc_browser'),
path('^json/', jsonrpc_site.dispatch, name='jsonrpc_mountpoint'),
re_path(r'^json/(?P[a-zA-Z0-9.-_]+)$', jsonrpc_site.dispatch),
)

**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']}}

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-jsonrpc

pip install django-jsonrpc

# 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, '[email protected]', 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)`



  • `name`

    The name of your method. IE: `namespace.methodName`



  • `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.

    *NOTE:* Type checking is only available on Python versions 2.6 or greater.



  • `site=default_site`

    Defines which site the jsonrpc method will be added to. Can be any
    object that provides a `register(name, func)` method.