Clever API quickie

avg_student_count.rb

require 'json'
require 'rest-client'

=begin

{"data"=>
  {"district"=>"4fd43cc56d11340000000005",
   "school"=>"4fee004cca2e43cf27000002",
   "name"=>"Advanced Literature 1(B)",
   "teacher"=>"4fee004dca2e43cf270007e8",
   "sis_id"=>"3494",
   "grade"=>"8",
   "section_number"=>"72",
   "students"=>
    ["4fee004cca2e43cf27000015",
     "4fee004cca2e43cf270003c5",
     "4fee004cca2e43cf27000093"],
   "last_modified"=>"2012-08-07T14:00:09.045Z",
   "id"=>"50211f69d0b01a522303c219"},
 "uri"=>"/v1.1/sections/50211f69d0b01a522303c219"}


=end

$clever_api = 'DEMO_KEY'
json_ip_url = "https://#{$clever_api}@api.getclever.com/v1.1/sections"
sections_details = JSON.parse(RestClient.get(json_ip_url))
# because I dont' know the best way to parse the json, lets just make it an array of hashes of hashes.
sections = sections_details.first[1]
$section_sizes = []

sections.each do |section|

  section_name = section['data']['name']
  section_size = section['data']['students'].size

  $section_sizes << section_size

end

puts $section_sizes.inject(:+).to_i/$section_sizes.size.to_i