drf-addons-plus

Some magic to the base Django REST Framework

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Overview

This project provides some extra functionalities to be used with Django REST Framework

• Field selection to Viewsets, eg. ?fields=id,name
• Conditional filtering to Viewsets, eg. ?conditional=active,-inactive
• Table hashing and 304 responses

You can also just copy the code manually and implement it yourself

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Requirements

• Python 3.8+
• Django 4.2, 5.0, 5.1
• Django REST Framework 3.0+ or less, you can test it
• Celery 3.4 or less, you can test it

Installation

Install using pip...

pip install drf_addons_plus

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Examples

• models.py:

from django.db import models

class FooModel(models.Model):
    name = models.CharField(max_length=100)
    status = models.BooleanField()
    category = models.CharField(choices=['foo', 'bar'])

• serializers.py:

from drf_addons_plus import serializers

from .models import FooModel


class FooSerializer(serializers.DynamicFieldsModelSerializer):
    class Meta:
        model = FooModel
        fields = ['name', 'status', 'category']

• views.py:

from rest_framework import filters
from drf_addons_plus import filters as filters_plus
from drf_addons_plus import viewsets

from .models import FooModel
from .serializers import FooSerializer


class FooViewSet(viewsets.FieldsModelViewSet):
    queryset = FooModel.objects.all()
    serializer_class = FooSerializer
    permission_classes = []
    filter_backends = [filters.SearchFilter, filters_plus.ConditionalFilter, filters_plus.FieldsFitlter]
    search_fields = ['name']
    conditional_fields = ['status']
    filter_fields = ['category']

• Request http://localhost:8000/foo/:

[
    {
        "name": "Bar",
        "status": false,
        "category": "Foo",
    }
]

• Request http://localhost:8000/foo/?fields=name&conditional=-status:

[
    {
        "name": "Bar"
    }
]

• Request http://localhost:8000/foo/?conditional=status:

[]

• Request http://localhost:8000/foo/?category="foo":

[
    {
        "name": "Bar",
        "status": false,
        "category": "Foo",
    }
]

Hashing for caching (WIP)

• views.py:

...
class FooViewSet(viewsets.HashesViewSet, viewsets.FieldsModelViewSet):
    ...
    hash_column = "name" # Default is `updated_at`
...

• Calculates hash on Create, Update or Delete
• Responses HEADER X-Data-Hash on Listing
• If HEADER X-Data-Hash passed on request, if matches current hash, returns 304, else list normally and returns new hash value
• Use this for caching your client / front-end (like ReactJS) / front-end server (Like NextJS with KeyDB redis)

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Disclaimer

This project has started and maybe will be maintened, but it's simple enough to probably not give you any trouble. USE IT AT YOUR OWN RISK

Credits

Django REST Framework YAtOff