Yogendra0Sharma

Basic Mongo shell commands

mongo             //Start mongo shell
show dbs          //Display databases
use mydb          //Start using 'mydb' database
db                //Display current database
show collections  //Display collections
help              //help

Yogendra0Sharma

# Get documents, where writters are Joel Coen and Ethan Coen.
db.movieDetails.find({ "writters" : ["Joel Coen", "Ethan Coen"] }).count()

# Get documents, where Jeff Bridges is playing leading role.
> db.movieDetails.find({ "actors.0": "Jeff Bridges" }).pretty()

Yogendra0Sharma

# Redis Cheatsheet
# All the commands you need to know


redis-server /path/redis.conf  # start redis with the related configuration file
redis-cli                      # opens a redis prompt


# Strings.

Yogendra0Sharma

#!/bin/sh
# Cleanup docker files: untagged containers and images.
#
# Use `docker-cleanup -n` for a dry run to see what would be deleted.

untagged_containers() {
    # Print containers using untagged images: $1 is used with awk's print: 0=line, 1=column 1.
    # NOTE: "[0-9a-f]{12}" does not work with GNU Awk 3.1.7 (RHEL6).
    # Ref: https://github.com/blueyed/dotfiles/commit/a14f0b4b#commitcomment-6736470
    docker ps -a | tail -n +2 | awk '$2 ~ "^[0-9a-f]+$" {print $'$1'}'

Yogendra0Sharma

# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true

# Install kernel extra's to enable docker aufs support
sudo apt-get -y install linux-image-extra-$(uname -r)

# Add Docker PPA and install latest version
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

Yogendra0Sharma

python manage.py shell:

>>> sql = '''drop table mytable cascade;
...          drop table mytable2; '''
>>> 
>>> from django.db import connections, transaction
>>> cursor = connections['default'].cursor()
>>> cursor.execute(sql)

Yogendra0Sharma

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from django.core.management.base import BaseCommand
# from django.core.management.base import CommandError
from optparse import make_option
from django.conf import settings
import os
import sys
import yaml
from boto.s3.connection import S3Connection

Yogendra0Sharma

Guide on how to create and set up a Dockerized web app using Django REST APIs and ReactJS

Hopefully this will answer "How do I setup or start a Django project using REST Framework and ReactJS?"

I created this because it was SUCH a pain in the ass setting up a project using all the latest technologies. After some research, I figured it out and have it working. The repo that implements this is located here. Feel free to use it as a boilerplate ;)

Main features:

• Django REST APIs
• ReactJS with Redux Pattern
• Webpack module bundler manager

Yogendra0Sharma

var myApp = angular.module('myApp').config(function($httpProvider) {
    $httpProvider.defaults.headers.post['X-CSRFToken'] = $('input[name=csrfmiddlewaretoken]').val();
});

Yogendra0Sharma

// service.js
angular.service('Address', function($resource, $cookies, $xhr, $log) {

  // Add Header to comply with Django's CSRF implementation
  token = $cookies['csrftoken'];
  $xhr.defaults.headers['delete']['X-CSRFToken'] = token;

  return $resource('/api/user/address/:addressId', {addressId:'@id'}, {});
});