The Perl Toolchain Summit needs more sponsors. If your company depends on Perl, please support this very important event.
 / 
Riap-1.1.24
River stage one • 1 direct dependent • 1 total dependent
1 ++
/ Riap::Simple

NAME

Riap::Simple - Simple Riap protocol over any stream socket

VERSION

This document describes version 1.1.24 of Riap::Simple (from Perl distribution Riap), released on 2014-08-18.

SYNOPSIS

This document specifies a simple Riap protocol over any stream socket like TCP, Unix, or piping to program.

DESCRIPTION

Riap::Simple is a simpler alternative to Riap::HTTP. It supports less features (currently only supports sending/receiving Riap request and response in JSON encoding, no encryption, no authentication, no sending of logging messages). It is suitable for localhost/localnet communication (e.g. between processes of different languages). For public-facing service, Riap::HTTP is more recommended.

Request

Client first sends a request line of the following format:

 "J" <size> <CRLF>

That is, the uppercase letter J (for JSON) and size of subsequent request body in bytes. Client then sends the Riap request in JSON, followed by CRLF.

Alternatively, client can also send the whole request in a single line, for shorter requests:

 "j" <JSON> <CRLF>

That is, the lowercase letter j followed by JSON data, followed by CRLF. In this format, the JSON data cannot contain newlines.

Response

Server replies by first sending a similar line:

 "J" <size> <CRLF>

followed by enveloped result encoded in JSON and a single <CRLF>. The next request can then be sent by client.

If client/server sends an invalid request/response line, the connection can be closed.

PROTOCOL VERSION

 1.1

EXAMPLES

Below are some examples of what is sent and received on the wire.

 J9
 {"v":0.9}
 J40
 [502,"Protocol version not implemented"]

 J1
 {
 J20
 [400,"Invalid JSON"]

 J57
 {"action":"call","uri":"/Math/mult","args":{"a":2,"b":3}}
 J12
 [200,"OK",6]

 j{"action":"call","uri":"/Math/mult","args":{"a":2,"b":4}}
 J12
 [200,"OK",8]

 J44
 {"v":1.1,"action":"info","uri":"/Math/mult"}
 J57
 [200,"OK",{"v":1.1,"type":"function","uri":"/Math/mult"}]

FAQ

SEE ALSO

Riap, Riap::HTTP

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Riap.

SOURCE

Source repository is at https://github.com/sharyanto/perl-Riap.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Riap

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

AUTHOR

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Steven Haryanto.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.