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Backend Developer Case Study

HI POTENTIAL BACKEND DEVELOPERS!

I'm Tom, I run development of the WindQuest webapp. If we end up working together, I'll be responsible for mentoring and training you as well as overseeing your work on WindQuest and similar applications within WindPioneers.

Right now, if you're willing, I'd like you to complete a small case study so I can get a sense of where your skill level is at. We hire quite broadly from Very Junior to Super Senior so it's OK to be wherever you're at right now!

At WindPioneers and our partner company Octue.com, we're keen on helping our employees and candidates improve themselves continually. With that in mind, I've designed this case study so that most developers (regardless of skill level) can learn things while doing it - put a little time in and you'll come out of the other side a better developer.

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name: octue

on:
  push:
    branches:
      - main

  pull_request:
    branches:
      - main

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import React from 'react'
import { Helmet } from 'react-helmet'

// Replace with the API keys from your widget installation page
const USERSNAP_GLOBAL_API_KEY = '<YOUR_USERSNAP_GLOBAL_API_KEY>'

/* Render this anywhere in your tree (preferably at the top of your app) to invoke the usersnap widget.
 */
const UserSnap = () => {
  return (

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class StackMixin:
    """ A mixin to print out methods as they're called on classes.
    Mix this in to classes whose logic flow you're trying to analyse, and you'll get a clear print out
    of what methods are called and when.
    """
    
    def __getattribute__(self, attr):
        method = object.__getattribute__(self, attr)

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# Homebrew Formula for Google Test
# Usage: brew install --HEAD https://gist.githubusercontent.com/Kronuz/96ac10fbd8472eb1e7566d740c4034f8/raw/gtest.rb

require 'formula'

class Gtest < Formula
  desc "Google Test"
  homepage "https://github.com/google/googletest"
  head "git://github.com/google/googletest.git", :using => :git

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#!/usr/bin/env bash
export PYTHONUNBUFFERED=1
export DJANGO_READ_DOT_ENV_FILE=1
export DJANGO_SETTINGS_MODULE=backend.settings.local
heroku local -p 8000

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Homebrew build logs for osgeo/osgeo4mac/osgeo-gdal on macOS 10.14.6
Build date: 2019-12-04 16:57:56

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import { stringify } from 'query-string'
import { fetchUtils } from 'react-admin'
import Cookies from 'universal-cookie'

import { store } from 'index'

const camelCaseKeys = require('camelcase-keys')

const snakeCaseKeys = require('snakecase-keys')

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class HeroBlock(StructBlock):
    content = StreamBlock([
        ('button', StructBlock([
            ('text', CharBlock(required=False, max_length=80, label='Label')),
            ('url', URLBlock(required=False, label='URL')),
        ], label='Call to action', help_text='A "call-to-action" button, like "Sign Up Now!"')),
        ('video', EmbedBlock(label='Video')),
        ('quote', StructBlock([
            ('text', TextBlock()),

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import React, { Component } from 'react'
import PropTypes from 'prop-types'


class FullArea extends Component {
  constructor(props) {
    super(props)
    this.state = {
      width: 0,
      height: 0,