tapanpandita

Task queuing in Django with ZeroMQ

Introduction

Here at Glitterbug Tech, Django is the lifeline of everything we make and we are big fans! Django doesn't get in the way and lets us write the language we love, python, while providing an amazing set of tools that makes creating web applications fast and fun. But, as you know, code is executed synchronously before you can send back a response. Which means when you are generating that report from your database which has a million rows, your client has to wait for a response while your application huffs and puffs trying to get everything ready (Unless he times out, in which case you receive angry calls while you try to explain what "502 Bad Gateway" means). Sometimes you just want to make your site more responsive by pushing time consuming tasks in the background ("Your comment has been posted!" while a zmq process works in the backend adding it to your db/caching layer/pushing it to followers/creating rainbows). Wha

obfusk

import code; code.interact(local=dict(globals(), **locals()))

tjanczuk

// How to connect 5 publishers with 5 subscribers 
// over TCP using ZeroMQ's XPUB/XSUB proxy.

// sub (connect) 
//   <-8701-> 
// (bind) xpub <---> xsub (bind) 
//   <-8700-> 
// (connect) pub

var zmq = require('zmq');

colophonemes

CREATE TRIGGER person_notify AFTER INSERT OR UPDATE OR DELETE ON income
FOR EACH ROW EXECUTE PROCEDURE notify_trigger(
  'id',
  'email',
  'username'
);

CREATE TRIGGER income_notify AFTER INSERT OR UPDATE OR DELETE ON income
FOR EACH ROW EXECUTE PROCEDURE notify_trigger(
  'id',

Orenoid

import datetime
import time
from _thread import RLock
from functools import update_wrapper, _make_key, _CacheInfo

# Check the example at the end of this script.


class Node:
    """node of the circular doubly linked list"""

bbengfort

import json
import random
import asyncio
import argparse
import matplotlib.pyplot as plt
import matplotlib.animation as animation

from functools import partial

wllmsash

Assigning Static IP Addresses in WSL2

WSL2 uses Hyper-V for networking. The WSL2 network settings are ephemeral and configured on demand when any WSL2 instance is first started in a Windows session. The configuration is reset on each Windows restart and the IP addresses change each time. The Windows host creates a hidden switch named "WSL" and a network adapter named "WSL" (appears as "vEthernet (WSL)" in the "Network Connections" panel). The Ubuntu instance creates a corresponding network interface named "eth0".

Assigning static IP addresses to the network interfaces on the Windows host or the WSL2 Ubuntu instance enables support for the following scenarios:

sesgoe

const webSocket = new WebSocket('wss://echo.websocket.org');

//Event listeners are the pillars upon which WebSockets are built. This event fires when the WebSocket is considered 'OPEN',
//which means that it has connected successfully.
webSocket.addEventListener('open', function(event) {
  console.log('websocket connected successfully') //log this into the browser console so we can check if the websocket connected
});


//This is a global reference to the websocket that we created. We need this because otherwise multiple JS