class HTTP::Server::Response

Overview

The response to configure and write to in an HTTP::Server handler.

The response #status_code and #headers must be configured before writing the response body. Once response output is written, changing the status and #headers properties has no effect.

The HTTP::Server::Response is a write-only IO, so all IO methods are available in it.

A response can be upgraded with the #upgrade method. Once invoked, headers are written and the connection IO (a socket) is yielded to the given block. The block must invoke #close afterwards, the server won't do it in this case. This is useful to implement protocol upgrades, such as websockets.

Included Modules

Defined in:

http/server/response.cr

Instance Method Summary

Instance methods inherited from module IO

<<(obj) : self <<, close close, cooked(&block) cooked, cooked! cooked!, each_byte
each_byte(&block)
each_byte
, each_char(&block)
each_char
each_char
, each_line(*args, &block)
each_line(*args)
each_line
, flush flush, gets(limit : Int) : String | Nil
gets(delimiter : Char, limit : Int) : String | Nil
gets(delimiter : Char) : String | Nil
gets : String | Nil
gets(delimiter : String) : String | Nil
gets
, gets_to_end : String gets_to_end, print(*objects : _) : Nil
print(obj) : Nil
print
, printf(format_string, args : Array | Tuple) : Nil
printf(format_string, *args) : Nil
printf
, puts : Nil
puts(*objects : _) : Nil
puts(string : String) : Nil
puts(obj) : Nil
puts
, raw(&block) raw, raw! raw!, read(slice : Slice(UInt8)) read, read_byte : UInt8 | Nil read_byte, read_bytes(type, format = IO::ByteFormat::SystemEndian : IO::ByteFormat) read_bytes, read_char : Char | Nil read_char, read_fully(slice : Slice(UInt8)) read_fully, read_line(*args) : String | Nil read_line, read_nonblock(size) read_nonblock, skip(bytes_count : Int) : Nil skip, tty? : Bool tty?, write(slice : Slice(UInt8)) : Nil write, write_byte(byte : UInt8) write_byte, write_bytes(object, format = IO::ByteFormat::SystemEndian : IO::ByteFormat) write_bytes

Class methods inherited from module IO

copy(src, dst) copy, pipe(read_blocking = false, write_blocking = false, &block)
pipe(read_blocking = false, write_blocking = false)
pipe
, select(read_ios, write_ios, error_ios, timeout_sec : LibC::TimeT | Int | Float | Nil)
select(read_ios, write_ios = nil, error_ios = nil)
select

Instance methods inherited from module JSON::Builder

json_array(&block) json_array, json_object(&block) json_object

Instance methods inherited from class Reference

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

Instance methods inherited from class Object

! !, !=(other) !=, !~(other) !~, ==(other) ==, ===(other) ===, =~(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) from_json, from_yaml(string : String) from_yaml, hash hash, inspect(io) inspect, name : String name, to_s(io) to_s

Instance Method Detail

def close #

Closes this response, writing headers and body if not done yet. This method must be implemented if wrapping the response output.


[View source]
def content_length=(content_length : Int) #

Convenience method to set the Content-Length header.


[View source]
def content_type=(content_type : String) #

Convenience method to set the Content-Type header.


[View source]
def flush #

Flushes the output. This method must be implemented if wrapping the response output.


[View source]
def headers #

The response headers (HTTP::Headers). These must be set before writing to the response.


[View source]
def output #

def output=(output) #

def status_code #

def status_code=(status_code) #

def upgrade(&block) #

Upgrades this response, writing headers and yieling the connection IO (a socket) to the given block. The block must invoke #close afterwards, the server won't do it in this case. This is useful to implement protocol upgrades, such as websockets.


[View source]
def version #

The version of the HTTP::Request that created this response.


[View source]
def write(slice : Slice(UInt8)) #

[View source]