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# Paginate
@spec handle_pagination(conn :: Plug.Conn.t(), page :: number | atom, page_size :: number | atom, query :: module) ::
        Plug.Conn.t()
defp handle_pagination(conn, page, page_size, query) do
  config = %Scrivener.Config{
    module: Repo,
    page_number: page,
    page_size: page_size,
    options: [total_entries: total_entries(query)]
  }

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defmodule Utils.Cowboy do
  use Bitwise

  #
  # ipv4 cowboy string example: "0.0.0.0.0.65535.20060.31747"
  # ipv6 cowboy string example: "10754.43916.45826.36224.35230.44219.15941.63302"

  def erlangCowboyIpv6StringToString(string) do
      if String.starts_with?(string, "0.0.0.0.0.65535") do
          String.split(string,".") |> Enum.take(-2) |> Enum.map(fn(x)-> String.to_integer x end) |> Enum.map(fn(x)-> [x >>> 8,x &&& 255] end) |> List.flatten |> Enum.join(".")

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# Mojito: https://github.com/appcues/mojito/
# Mint: https://github.com/elixir-mint/mint
defmodule ElasticSearch do
  @config Application.get_env(:my_app, ElasticSearch)
  @root @config[:root] # ie http://localhost:9200
  @headers [
    {"content-type", "application/json"}
  ]

  def put(index, id, doc) do

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version: '3.8'

services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    ports:
      - 22181:2181

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defmodule Downloader do
  defstruct completed: false,
            content_length: 0,
            max_body_length: 200 * 1024 * 1024,
            max_redirect: 3,
            receive_timeout: 10_000,
            redirect_count: 0,
            redirect_location: nil,
            status: 0

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http://invisible-island.net/xterm/


                        XTerm Control Sequences

                               Edward Moy
                   University of California, Berkeley

                               Revised by

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require 'mina/bundler'
require 'mina/git'
require 'mina/rbenv'

set :domain, 'your_domain.com'
set :deploy_to, '/home/deployer/app_name'
set :repository, 'git@github.com:user_name/app_name'
set :branch,  ENV["brunch"] || 'master'

set :app_name, "app_name"

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https://github.com/bryanjos/joken - A JSON Web Token (JWT) Library

1. Закодировать JWT - подпись секретным текстовым ключем "my_secret_key"

  token = %{user_id: 123}
  |> Joken.token()
  |> Joken.with_signer(Joken.hs256("my_secret_key"))
  |> Joken.sign()
  |> Joken.get_compact()

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#!/usr/bin/env bash
# https://developers.supportbee.com/blog/setting-up-cucumber-to-run-with-Chrome-on-Linux/
# https://gist.github.com/curtismcmullan/7be1a8c1c841a9d8db2c
# http://stackoverflow.com/questions/10792403/how-do-i-get-chrome-working-with-selenium-using-php-webdriver
# http://stackoverflow.com/questions/26133486/how-to-specify-binary-path-for-remote-chromedriver-in-codeception
# http://stackoverflow.com/questions/40262682/how-to-run-selenium-3-x-with-chrome-driver-through-terminal
# http://askubuntu.com/questions/760085/how-do-you-install-google-chrome-on-ubuntu-16-04

# Versions
CHROME_DRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`

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How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev