class HTTP::FormData::Parser
Defined in:
http/formdata/parser.crConstructors
-
.new(io, boundary)
Create a new parser which parses io with multipart boundary boundary.
Instance Method Summary
-
#has_next?
True if
#next
can be called legally. -
#next(&block)
Parses the next form-data part and yields field name, io,
FileMetadata
, and raw headers.
Instance methods inherited from class Reference
==(other : self)==(other) ==, dup dup, hash hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
new
new
Instance methods inherited from class Object
!=(other)
!=,
!~(other)
!~,
==(other)
==,
===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, class class, dup dup, hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as
Constructor methods inherited from class Object
from_json(string_or_io, root : String) : selffrom_json(string_or_io) : self from_json, from_yaml(string_or_io) : self from_yaml
Constructor Detail
Instance Method Detail
def next(&block)
#
Parses the next form-data part and yields field name, io, FileMetadata
,
and raw headers.
This method yields once instead of returning the values, because the IO object yielded to the block is only valid while the block is executing. The IO object will be closed as soon as the block returns. To store the content of the body part for longer than the block, the IO must be read into memory.
form_data = "--aA40\r\nContent-Disposition: form-data; name=\"field1\"; filename=\"foo.txt\"; size=13\r\nContent-Type: text/plain\r\n\r\nfield data\r\n--aA40--"
parser = HTTP::FormData::Parser.new(IO::Memory.new(form_data), "aA40")
parser.next do |part|
part.name # => "field1"
part.io.gets_to_end # => "field data"
part.filename # => "foo.txt"
part.size # => 13
part.headers["Content-Type"] # => "text/plain"
end