* Dancer::Plugin::RPC ==> Example

* This example app has 6 functions grouped in 2 groups:
    system: get_status, list_methods
    db:     create_person, get_person, update_person, get_persons
These 6 functions are reachable with 2 different protocols (jsonrpc2
and restish) on the same daemon.

* Dependencies
This example code uses some extra dependencies, I've stated all of them in the cpanfile.
To install these dependencies in the local directory using Carton:

    $ cd example
    $ carton install

This installs all dependencies in the example/local directory.

* Start Example app
Start the Example daemon (simple way it's a Deamon::Control wrapper`):

    $ cd example
    $ carton exec -- bin/example.pl <start | foreground>

* Testing Example app
Testing the daemon (with curl):

    $ cd example

Any of:
    $ curl http://localhost:3333/system/status
    $ curl http://localhost:3333/system/methods
    $ curl http://localhost:3333/system/methods/restish

    $ curl -XPOST -H'Content-type: application/json' http://localhost:3333/system \
    $ curl -XPOST -H'Content-type: application/json' http://localhost:3333/system \
      -d'{"jsonrpc":"2.0","id":42,"method":"list_methods", "params":{"plugin":"jsonrpc"}}'

    $ curl -H'Content-type: application/json' http://localhost:3333/db/person \
      -XPUT -d'{"name":"abeltje","job":"hacker"}'
    $ curl -H'Content-type: application/json' http://localhost:3333/db/person \
      -XPUT -d'{"name":"tux","job":"hacker"}'
    $ curl http://localhost:3333/db/persons
    $ curl -H'Content-type: application/json' http://localhost:3333/db/person/1 \
      -XPOST -d'{"job":"haxor"}'
    $ curl http://localhost:3333/db/persons 2>/dev/null | perl -MJSON -nE \
      'BEGIN{$j=JSON->new()->pretty(1)} say $j->encode($j->decode($_))'

    $ curl -H'Content-type: application/json' http://localhost:3333/db \
      -XPOST -d'{"jsonrpc":"2.0","id":42,"method":"get_persons"}' 2>/dev/null | perl -MJSON \
      -nE 'BEGIN{$j=JSON->new()->pretty(1)} say $j->encode($j->decode($_))'