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# Set new Stripe API token
Stripe.api_key = 'sk_test_token'

# create new account
account = Stripe::Account.create({type: 'standard'})

# generate link for user to associate account
account_id = Stripe::AccountLink.create({
  account: account.id,
  refresh_url: 'https://www.site.tech/refresh_url',

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# =begin
# # Given a Balanced Binary Tree (BBT)
# # (non-sorted, non-search, containing unique elements)

#                    42
#                   /  \
#                  /    \
#                 /      \
#                /        \
#               81        99

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#
# Transpose a matrix
# Make [[1,2,3], [4,5,6], [7,8,9]] becomes [[1,4,7], [2,5,8], [3,6,9]]
#
class Array
  def my_transpose
    size.times do |i|
      0.upto(i) do |j|
        self[i][j], self[j][i] = self[j][i], self[i][j]
      end

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env:
sudo: false
language: ruby
cache: bundler
rvm:
  - 2.5.1
script: bundle exec rspec
matrix:
 allow_failures:
   - rvm: ruby-head

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AllCops:
  TargetRubyVersion: 2.3

Lint/AmbiguousBlockAssociation:
  Description: This cop checks for ambiguous block association with method when param passed without parentheses.
  Enabled: false

Lint/UnifiedInteger:
  Description: This cop checks for using Fixnum or Bignum constant.
  Enabled: false

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## Hints & what we're looking for

* We're more **interested in the process** than in the final result. You
  probably won't finish the whole task in the given time.
* You are free to **use anything you use in your daily work**, including
  websites like Google or StackOverflow.
* You can use any language or tool you want, but we recommend that you use the
  language you feel most comfortable with and keep it super simple.
  **You don't need a database or framework**, a simple command line script that
  computes the values and prints them to the console is just fine for us. You

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# config.ru
require './application/api'

use RackAuthMiddleware
run Rack::Cascade.new [ApiSupport]

# application/middlewares/rack_auth_middleware.rb
class RackAuthMiddleware
  UnprocessableHeader = Class.new(ArgumentError)

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HTTP client library is so convenient Faraday of Ruby

Faraday's so convenient Ruby HTTP client library

The development of the API wrapper [RestClient gem] or I [rest_client_gem]
What you need for OAuth was using [Net / HTTP] [net_http] + [OAuth gem] the [oauth_gem]

After reading the source of the API library [Twitter gem] and [twitter_gem] [Instagram gem] such as [instagram_gem]
Thing [Faraday gem] that [faraday_gem] had been commonly used

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AllCops:
  DisplayCopNames: true
  Exclude:
    - 'bin/*'
    - 'config.ru'
    - 'config/environments/*'
    - 'config/initializers/*'
    - 'db/**/*'
    - 'vendor/**/*'
    - Gemfile

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Given a year, report if it is a leap year.

The tricky thing here is that a leap year in the Gregorian calendar occurs:

• on every year that is evenly divisible by 4
• except every year that is evenly divisible by 100
• unless the year is also evenly divisible by 400

For example, 1997 is not a leap year, but 1996 is. 1900 is not a leap year, but 2000 is.