Automatically renew library books from the London School of Economics (LSE) library from a Ruby script with the LSE Renew-o-matic

lse_renew_o_matic.rb

# LSE Renew-o-matic
# Renew books you've taken out from the library at LSE (the British Library of Political
# and Economic Science) just by running a Ruby script
#
# Step 1: Install the gem dependencies
#    $ gem install terminal-table mechanize
# Step 2: Run, and you'll get a beautiful table at the end with the results!

require 'terminal-table'
require 'mechanize'
require 'json'

USERNAME = "username"
PASSWORD = "password"

agent = Mechanize.new

puts "* Heading to the login page"
page = agent.get("https://catalogue.lse.ac.uk/MyResearch/Home")
form = page.form('loginForm')
form.username = USERNAME
form.password = PASSWORD

puts "* Logging in with provided username and password"
agent.submit(form)

puts "* Renewing books"
json = agent.get("https://catalogue.lse.ac.uk/MyResearch/Renew").body

puts "* Parsing renewal response"
results = JSON.parse(json)
rows =  []

puts "* Building results output"
results["items"].each do |result|
	renewal_status = result["wasRenewed"] == true ? "Yes" : "No"
	due_date = "#{result["dueDate"]["DD-MM-YY"]} #{result["dueDate"]["HH:MM"]}"
	rows << [result["barcode"], renewal_status, due_date]
end

puts "* Ta da!"
puts ""
table = Terminal::Table.new headings: %w{Barcode Renewed? Due}, rows: rows
puts table