haproxytechblog

frontend api_gateway
    bind :443 ssl crt /etc/hapee-1.8/certs/cert.pem
    acl PATH_cart path_beg -i /cart
    acl PATH_catalog path_beg -i /catalog
    use_backend be_cart if PATH_cart
    use_backend be_catalog if PATH_catalog

backend be_cart
    server s1 10.0.0.3:80

soulmachine

First of all, please note that token expiration and revoking are two different things.

1. Expiration only happens for web apps, not for native mobile apps, because native apps never expire.
2. Revoking only happens when (1) uses click the logout button on the website or native Apps;(2) users reset their passwords; (3) users revoke their tokens explicitly in the administration panel.

1. How to hadle JWT expiration

A JWT token that never expires is dangerous if the token is stolen then someone can always access the user's data.

Quoted from JWT RFC:

procrastinatio

Introduction

So HAProxy is primalery a load balancer an proxy for TCP and HTTP. But it may act as a traffic regulator. It may also be used as a protection against DDoS and service abuse, by maintening a wide variety of statistics (IP, URL, cookie) and when abuse is happening, action as denying, redirecting to other backend may undertaken ([haproxy ddos config], [haproxy ddos])

RatulSaha

#List traversal
range(start, stop, hop)
range(n) # [0,1,...,n-1]
range(1,n) # [1,...,n-1]
range(1,n,2) # [1,3,5,...,n-1] if n is even, or [1,3,5,...,n-2] if n is odd
range(n,-1,-1) # [n,n-1,n-2,...,0]
range(len(arr)) # Provides indices of an array arr
range(len(arr)-1,-1,-1) # Provides indices of arr backwards

# List slicing

chenjianjx

'''
A python script which starts celery worker and auto reload it when any code change happens.  
I did this because Celery worker's "--autoreload" option seems not working for a lot of people. 
'''

import time
from watchdog.observers import Observer  ##pip install watchdog
from watchdog.events import PatternMatchingEventHandler  
import psutil  ##pip install psutil
import os

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

parmentf

Inspired by dannyfritz/commit-message-emoji

See also gitmoji.

Commit type	Emoji
Initial commit	🎉 :tada:
Version tag	🔖 :bookmark:
New feature	✨ :sparkles:
Bugfix	🐛 :bug:

mminer

"""An example of a cache decorator."""

import json
from functools import wraps
from redis import StrictRedis


redis = StrictRedis()

def cached(func):

rozza

import unittest
from mongoengine import *


class Test(unittest.TestCase):

    def setUp(self):
        conn = connect(db='mongoenginetest')

    def create_old_data(self):

jrosebr1

# @brief
# Performs file upload validation for django. The original version implemented
# by dokterbob had some problems with determining the correct mimetype and
# determining the size of the file uploaded (at least within my Django application
# that is).

# @author dokterbob
# @author jrosebr1

import mimetypes