codesnips

django

python 
import base64
import json

from django.core.exceptions import BadRequest

Cursor-Paginated JSON Feed with a Django Class-Based ListView

django pagination cursor-pagination
by codesnips 3 tabs
python 
CACHES = {
    'default': {
        'BACKEND': 'django_redis.cache.RedisCache',
        'LOCATION': 'redis://127.0.0.1:6379/1',
        'OPTIONS': {
            'CLIENT_CLASS': 'django_redis.client.DefaultClient',

Django redis caching strategies

django python redis
by Priya Sharma 2 tabs
python 
import json
from channels.generic.websocket import AsyncWebsocketConsumer


class ChatConsumer(AsyncWebsocketConsumer):
    async def connect(self):

Django channels for WebSockets and async

django python websockets
by Priya Sharma 2 tabs
python 
from django.core.exceptions import ValidationError


def validate_file_size(file):
    """Limit file size to 5MB."""
    max_size_mb = 5

Django file upload handling with validation

django python files
by Priya Sharma 2 tabs
python 
from rest_framework import routers
from rest_framework_nested import routers as nested_routers
from . import views

router = routers.DefaultRouter()
router.register(r'posts', views.PostViewSet, basename='post')

Django REST Framework nested routers

django python rest
by Priya Sharma 2 tabs
python 
import os
from .base import *

DEBUG = False

SECRET_KEY = os.environ['SECRET_KEY']

Django deployment checklist and production settings

django python deployment
by Priya Sharma 1 tab
python 
import random


class PrimaryReplicaRouter:
    """Route reads to replicas, writes to primary."""

Django database routers for multiple databases

django python database
by Priya Sharma 1 tab
python 
from django.db.models import Prefetch
from django.views.generic import ListView
from .models import Post, Comment


class PostListView(ListView):

Django select_related and prefetch_related for N+1 query optimization

django python performance
by Priya Sharma 1 tab
python 
from django.db import models
from django.utils.text import slugify


class Article(models.Model):
    title = models.CharField(max_length=200)

Auto-Generate Unique Slugs in Django with a pre_save Signal and Model Method

django signals slugs
by codesnips 3 tabs
python 
from rest_framework import viewsets, status
from rest_framework.decorators import action
from rest_framework.response import Response
from blog.models import Post
from .serializers import PostSerializer

Django REST Framework viewset actions

django python rest
by Priya Sharma 1 tab
python 
from django.db import models
from django.utils import timezone


class WebhookEvent(models.Model):
    class Status(models.TextChoices):

Idempotent Stripe Webhook Handling in Django with a Unique Event-ID Constraint

django webhooks idempotency
by codesnips 3 tabs
python 
from django.core.exceptions import PermissionDenied


class UserOwnershipMixin:
    """Ensure the object belongs to the current user."""

Django class-based view with mixins for reusability

django python views
by Priya Sharma 2 tabs