abstract class HTTP::Handler

Overview

A handler is a class which inherits from HTTP::Handler and implements the #call method. You can use a handler to intercept any incoming request and can modify the response. These can be used for request throttling, ip-based whitelisting, adding custom headers e.g.

A custom handler

class CustomHandler < HTTP::Handler
  def call(context)
    puts "Doing some stuff"
    call_next(context)
  end
end

Direct Known Subclasses

Defined in:

http/server/handler.cr

Instance Method Summary

Instance methods inherited from class Reference

==(other)
==(other : self) ==, hash hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s

Instance methods inherited from class Object

!=(other) !=, !~(other) !~, ==(other) ==, ===(other)
===(other : YAML::Any)
===(other : JSON::Any) ===, =~(other) =~, class class, clone clone, crystal_type_id crystal_type_id, dup dup, hash hash, inspect
inspect(io : IO) inspect, itself itself, not_nil! not_nil!, tap(&block) tap, to_json to_json, to_pretty_json(io : IO)
to_pretty_json to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try

Class methods inherited from class Object

==(other : Class) ==, ===(other) ===, cast(other) : self cast, from_json(string_or_io) : self from_json, from_yaml(string : String) : self from_yaml, hash hash, inspect(io) inspect, name : String name, to_s(io) to_s, |(other : U.class) |

Instance Method Detail

abstract def call(context : HTTP::Server::Context) #

[View source]
def call_next(context : HTTP::Server::Context) #

[View source]
def next : HTTP::Server::Context -> | HTTP::Handler | Nil #

def next=(next : Handler | Proc | Nil) #