Hahahahahahahahaha

evil_hashiform.rb

➜  hashiform git:(master) ✗ pry --gem
[1] pry(main)>
[1] pry(main)> require 'json'; require'net/http'
=> true
[2] pry(main)> users = JSON.parse(Net::HTTP.get(URI('https://jsonplaceholder.typicode.com/users')));
[3] pry(main)> posts = JSON.parse(Net::HTTP.get(URI('https://jsonplaceholder.typicode.com/posts')));
[4] pry(main)> def user_xform(u, posts)
  Hashiform.new(u,{
    'get_posts' => -> user_id { posts.select { |p| p['userId'] == user_id } }
  }).transform({
    'name'=>'name',
    'posts'=>'get_posts:id'
  })
end

=> :user_xform
# ... mistakes were made
[7] pry(main)> users.map { |u| user_xform(u,posts) }
=> [{"name"=>"Leanne Graham",
  "posts"=>
   [{"userId"=>1,
     "id"=>1,
     "title"=>"sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
     "body"=>
      "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet archite
cto"}

https://github.com/baweaver/hashiform/blob/master/spec/hashiform_spec.rb