coderdan

class CustomerAPI < Grape::API
  version 'v1', :using => :header

  resource :users do
    desc "Return all users"
    get do
      User.all
    end

    desc "Return a User with a given ID"

coderdan

# In Rails config/routes.rb

mount Twitter::API => "/"

coderdan

class CustomerAPI < Grape::API
  version 'v1', :using => :header

  resource :users do
    desc "Create a user"
    post :create do
      User.create!(params[:user]).to_json
    end
  end
end

coderdan

class CustomerAPI < Grape::API
  version 'v1', :using => :header

  resource :users do
    desc "Will Error!"
    post :silly do
      error("You're silly", 500)
    end

    desc "Smarter version of all Users"

coderdan

class CustomerAPI < Grape::API
  version 'v1', :using => :header

  rescue_from ActiveRecord::RecordInvalid do |e|
    # Precondition Failed
    error_response(:status => 412, :message => { :error => e.message }.to_json)
  end

  helpers do
    def authenticate!

coderdan

public class Challenge {
  public static void main(String[] args) throws Exception {
    Output.write(Input.read());
  }
}

coderdan

output << input

coderdan

public class Challenge {
  public static void Main() {
    Output.Write(Input.Read());
  }
}

coderdan

<?php
include 'support.php';
Output::Write(Input::Read());

coderdan

output += input;