resolving_operations.md

Resolving operations

There are several ways you can specify how to resolve an operation.

Instance method

Operations can be plugged as methods (both public and private) in the application class:

class MyApp
  include WebPipe
  
  plug :html
  
  private
  
  def html(conn)
    conn.add_response_header('Content-Type' => 'text/html')
  end
end

#call

Operations can be plugged inline as anything responding to #call, like a Proc or a lambda:

class MyApp
  include WebPipe
  
  plug :html, ->(conn) { conn.add_response_header('Content-Type' => 'text/html') }
end

Block

In the same way that #call, operations can also be plugged inline as blocks:

class MyApp
  include WebPipe
  
  plug :html do |conn|
    conn.add_response_header('Content-Type' => 'text/html')
  end
end