> For the complete documentation index, see [llms.txt](https://ccapeng.gitbook.io/bookstores/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ccapeng.gitbook.io/bookstores/django/topic-django-rest.md).

# Django REST framework

* The source repository is <https://github.com/ccapeng/bookstore_api>
* Installation\
  `pip install djangorestframework`
* In the regular django, you need to implement view in order to output data.\
  with REST framework, only need to implement serializer `book.serializers.py` in order to save data.\
  And, register url in

  `book.urls.py`\
  When server startup, then you can view api in\
  <http://127.0.0.1:8000/api/category/>\
  <http://127.0.0.1:8000/api/publisher/>\
  <http://127.0.0.1:8000/api/author/>\
  <http://127.0.0.1:8000/api/book/>
* Snake-case to camel-case Python is a language like all against c syntax, no curly brace block match and use snake-case for the variables.\
  In general, we also use camel-case in javascript, json.\
  The following implementation totally take the extra translation.

  Add

  ```
    utils.api.parsers.py
    utils.api.renders.py
  ```

  This parser was copied from <https://gist.github.com/vbabiy/5842073>.

  So in the settings.py, also update:

  ```python
    REST_FRAMEWORK = {
        'DEFAULT_RENDERER_CLASSES': (
            'utils.api.renderers.CamelCaseJSONRenderer',
            'rest_framework.renderers.BrowsableAPIRenderer',
        ),

        'DEFAULT_PARSER_CLASSES': (
            'utils.api.parsers.CamelCaseJSONRenderer',
            'rest_framework.parsers.FormParser',
            'rest_framework.parsers.MultiPartParser'
        ),
    }
  ```
* To bypass cross Origin, you need to add the following middleware implementation into order to have browser accept the cross site permission. Middleware implement at bookstore\_api.corsapp.middleware.py

  ```python
    class CorsMiddleware(object):

        def __init__(self, get_response):
            self.get_response = get_response

        def __call__(self, request):
            response = self.get_response(request)
            response["Access-Control-Allow-Origin"] = "*"
            response["Access-Control-Allow-Headers"] = "*"
            response["Access-Control-Allow-Methods"] = "*"

            return response
  ```