codesnips

flask

python 
import time
import threading
from collections import deque, defaultdict


class SlidingWindowLimiter:

Sliding-Window Rate Limiting in Flask With a Custom Decorator and In-Memory Buckets

flask rate-limiting decorators
by codesnips 3 tabs
python 
from sqlalchemy import select

from .models import Order, db


def stream_orders(batch_size=1000):

Stream a Large CSV Export in Flask With a Generator Response

flask streaming csv
by codesnips 3 tabs
python 
import hashlib
import hmac
import time


class SignatureError(Exception):

Verify Stripe-Style Webhook HMAC Signatures Before Processing in Flask

flask webhooks hmac
by codesnips 3 tabs
python 
import sqlite3

import click
from flask import current_app, g

Request-Scoped Database Connections in Flask Using g and teardown_appcontext

flask sqlite connection-pooling
by codesnips 4 tabs
python 
import csv


class _LineBuffer:
    def __init__(self):
        self._data = ""

Stream a Large CSV Export in Chunks from a Flask Endpoint

flask streaming csv
by codesnips 3 tabs
python 
import base64
import json
from datetime import datetime


class InvalidCursor(Exception):

Cursor-Based Pagination for a Flask JSON API Blueprint

flask pagination cursor
by codesnips 3 tabs
python 
import io
import os
from uuid import uuid4
from PIL import Image, UnidentifiedImageError

ALLOWED_FORMATS = {"JPEG", "PNG", "WEBP"}

Validate and Generate Image Thumbnails on a Flask Upload Endpoint With Pillow

flask pillow image-processing
by codesnips 3 tabs