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.\" ========================================================================
.\"
.IX Title "Mojo::WebSocket 3pm"
.TH Mojo::WebSocket 3pm "2017-01-24" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Mojo::WebSocket \- The WebSocket protocol
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use Mojo::WebSocket qw(WS_TEXT build_frame parse_frame);
\&
\&  my $bytes = build_frame 0, 1, 0, 0, 0, WS_TEXT, \*(AqHello World!\*(Aq;
\&  my $frame = parse_frame \e$bytes, 262144;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Mojo::WebSocket implements the WebSocket protocol as described in
\&\s-1RFC 6455\s0 <http://tools.ietf.org/html/rfc6455>. Note that 64\-bit frames require
a Perl with support for quads or they are limited to 32\-bit.
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
Mojo::WebSocket implements the following functions, which can be imported
individually.
.SS "build_frame"
.IX Subsection "build_frame"
.Vb 1
\&  my $bytes = build_frame $masked, $fin, $rsv1, $rsv2, $rsv3, $op, $payload;
.Ve
.PP
Build WebSocket frame.
.PP
.Vb 2
\&  # Masked binary frame with FIN bit and payload
\&  say build_frame 1, 1, 0, 0, 0, WS_BINARY, \*(AqHello World!\*(Aq;
\&
\&  # Text frame with payload but without FIN bit
\&  say build_frame 0, 0, 0, 0, 0, WS_TEXT, \*(AqHello \*(Aq;
\&
\&  # Continuation frame with FIN bit and payload
\&  say build_frame 0, 1, 0, 0, 0, WS_CONTINUATION, \*(AqWorld!\*(Aq;
\&
\&  # Close frame with FIN bit and without payload
\&  say build_frame 0, 1, 0, 0, 0, WS_CLOSE, \*(Aq\*(Aq;
\&
\&  # Ping frame with FIN bit and payload
\&  say build_frame 0, 1, 0, 0, 0, WS_PING, \*(AqTest 123\*(Aq;
\&
\&  # Pong frame with FIN bit and payload
\&  say build_frame 0, 1, 0, 0, 0, WS_PONG, \*(AqTest 123\*(Aq;
.Ve
.SS "challenge"
.IX Subsection "challenge"
.Vb 1
\&  my $bool = challenge Mojo::Transaction::WebSocket\->new;
.Ve
.PP
Check WebSocket handshake challenge.
.SS "client_handshake"
.IX Subsection "client_handshake"
.Vb 1
\&  my $tx = client_handshake Mojo::Transaction::HTTP\->new;
.Ve
.PP
Perform WebSocket handshake client-side.
.SS "parse_frame"
.IX Subsection "parse_frame"
.Vb 1
\&  my $frame = parse_frame \e$bytes, $limit;
.Ve
.PP
Parse WebSocket frame.
.PP
.Vb 8
\&  # Parse single frame and remove it from buffer
\&  my $frame = parse_frame \e$buffer, 262144;
\&  say "FIN: $frame\->[0]";
\&  say "RSV1: $frame\->[1]";
\&  say "RSV2: $frame\->[2]";
\&  say "RSV3: $frame\->[3]";
\&  say "Opcode: $frame\->[4]";
\&  say "Payload: $frame\->[5]";
.Ve
.SS "server_handshake"
.IX Subsection "server_handshake"
.Vb 1
\&  my $tx = server_handshake Mojo::Transaction::HTTP\->new;
.Ve
.PP
Perform WebSocket handshake server-side.
.SH "CONSTANTS"
.IX Header "CONSTANTS"
Mojo::WebSocket implements the following constants, which can be imported
individually.
.SS "\s-1WS_BINARY\s0"
.IX Subsection "WS_BINARY"
Opcode for \f(CW\*(C`Binary\*(C'\fR frames.
.SS "\s-1WS_CLOSE\s0"
.IX Subsection "WS_CLOSE"
Opcode for \f(CW\*(C`Close\*(C'\fR frames.
.SS "\s-1WS_CONTINUATION\s0"
.IX Subsection "WS_CONTINUATION"
Opcode for \f(CW\*(C`Continuation\*(C'\fR frames.
.SS "\s-1WS_PING\s0"
.IX Subsection "WS_PING"
Opcode for \f(CW\*(C`Ping\*(C'\fR frames.
.SS "\s-1WS_PONG\s0"
.IX Subsection "WS_PONG"
Opcode for \f(CW\*(C`Pong\*(C'\fR frames.
.SS "\s-1WS_TEXT\s0"
.IX Subsection "WS_TEXT"
Opcode for \f(CW\*(C`Text\*(C'\fR frames.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Mojolicious, Mojolicious::Guides, <http://mojolicious.org>.