Minimal Configuration

Amber can be run from a single file for minimal configuration setups if the user prefers this for smaller applications.
require "amber"
​
class HelloController < Amber::Controller::Base
  def index
    "hello world"
  end
end
​
Amber::Server.configure do |app|
  pipeline :api do
  end
​
  routes :api do
    get "/", HelloController, :index
  end
end
​
Amber::Server.start

Crystal Debug

Cookbook

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