Django Rest Structure

This app make your rest api application simple

Document

1. Install by running

pip install django-rest-structure

---

2. Add middleware to your MIDDLEWARE (or MIDDLEWARE_CLASSES) setting like this:

MIDDLEWARE = (
   'django_structure.middlewares.middleware.RequestHandlerMiddleware',
   ...
)

---

3. Add exception handler to your REST_FRAMEWORK setting like this:

REST_FRAMEWORK = {
    ...
    'EXCEPTION_HANDLER': 'django_structure.results.exception.exception_handler'
    ...
}

then add to YOUR-PROJECT/urls.py

handler404 = 'django_structure.api.views.error_view_404'
handler500 = 'django_structure.api.views.error_view_500'
handler403 = 'django_structure.api.views.error_view_403'
handler400 = 'django_structure.api.views.error_view_400'

---

4. Create your result messages like:

from django_structure.results.codes import ResultMessageStructure
from django_structure.results.exception import ResultMessages

class MyCustomResultMessages(ResultMessages):
    CUSTOM_ERROR = ResultMessageStructure(1, 'My Custom Error', False, 500)
    # `1` is your result code
    # `My Custom Error` is your result message
    # `False` define result is success or not
    # `500` is http response code

---

5. Create your custom exception like:

from django_structure.results.exception import Err

class MyCustomError(MyCustomResultMessages, Err):
    def __init__(self, *args, **kwargs):
        super(MyCustomError, self).__init__(*args, **kwargs)

---

6. Now you should create your views like:

from django_structure.api.views import BaseApiView

class MyView(BaseApiView):
    def post_method(self, request, *args, **kwargs):
        result = {}
        return ResponseStructure(ResultMessages.GET_SUCCESSFULLY, result)

sample 1:

request data:

{}

response data:

{
    "status": {
        "code": 200,
        "message": "Done",
        "is_success": true
    },
    "result": {}
}

7. Create your serializers like:

1. simple serializers

from django_structure.api.views import BaseApiView
from django_structure.api.serializers import BaseSerializer
from rest_framework import serializers

class MySerializer(BaseSerializer):
    my_field = serializers.CharField()

    def get_response(self):
        # the request available on self.request
        response_data = {
            'my_field': self.validated_data['my_field']
        }
        return ResponseStructure(ResultMessages.GET_SUCCESSFULLY, response_data)



class MyView(BaseApiView):
    def post_method(self, request, *args, **kwargs):
        return MySerializer(request.data, check_is_valid=True, request=request).get_response()

sample 1:

request data:

{
    "my_field": "test"
}

response data:

{
    "status": {
        "code": 200,
        "message": "Done",
        "is_success": true
    },
    "result": {
        "my_field": "test"
    }
}

2. serializer with custom validation

from django_structure.api.views import BaseApiView
from django_structure.api.serializers import BaseSerializer
from django_structure.api.validations import StrFieldValidation
from rest_framework import serializers

def my_field_vld(value, **extra_params):
    return value.upper()


class MySerializer(BaseSerializer):
    # returned object from StrFieldValidation is available on validated_data
    my_field = serializers.CharField(validators=[StrFieldValidation(
        regex=r'^[A-Za-z]+$',
        error_message='just enter alphabet',
        extra_function=my_field_vld
    )])

    def get_response(self):
        # the request available on self.request
        response_data = {
            'my_field': self.validated_data['my_field']
        }
        return ResponseStructure(ResultMessages.GET_SUCCESSFULLY, response_data)


class MyView(BaseApiView):
    def post_method(self, request, *args, **kwargs):
        return MySerializer(request.data, check_is_valid=True, request=request).get_response()

sample 1:

request data:

{
    "my_field": "@"
}

response data:

{
    "status": {
        "code": 406,
        "message": "Entered Data Is Not Valid",
        "is_success": false
    },
    "result": {
        "my_field": [
            "enter just alphabet"
        ]
    }
}

sample 2:

request data:

{
    "my_field": "Test"
}

response data:

{
    "status": {
        "code": 200,
        "message": "Done",
        "is_success": true
    },
    "result": {
        "my_field": "TEST"
    }
}

3. list serializer

from django_structure.api.views import BaseApiView
from django_structure.api.serializers import MyListSerializer

class MySerializer(MyListSerializer):

    def get_response(self):
        # the request available on self.request
        my_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l']
        response_data = self.paging_structure(
            *self.paging(my_list)
        )
        return ResponseStructure(ResultMessages.GET_SUCCESSFULLY, response_data)


class MyView(BaseApiView):
    def post_method(self, request, *args, **kwargs):
        return MySerializer(request.data, check_is_valid=True, request=request).get_response()

sample 1:

request data:

{
    "page": 1,
    "count": 5
}

response data:

{
    "status": {
        "code": 200,
        "message": "Done",
        "is_success": true
    },
    "result": {
        "list": [
            "a",
            "b",
            "c",
            "d",
            "e"
        ],
        "page": 1,
        "count_in_page": 5,
        "total_count": 12
    }
}

8. Config your settings

change structure response function by adding to your settings.py

REST_STRUCTURE_CONF = {
    'response_handler': 'django_structure.results.structure.response_structure'
}

define your custom function like:

def response_structure(response):
    return {
        'status': {
            'code': response.message.code,
            'message': response.message.message,
            'is_success': response.message.is_success_result,

        },
        'result': response.body
    }

change logging handler function by adding to your settings.py

REST_STRUCTURE_CONF = {
        'log_handler': 'django_structure.logs.console.emmit',
}

define your custom function like:

import logging
logger = logging.Logger('console')



def emmit(request, response, error, request_time, response_time):
    if error is not None:
        logger.debug(error)

9. You can see the simple project that use from this package at: django_rest_structure_sample