[Catalyst] Pilot error/cluelessness with XMLRPC

[Joe Landman]

Hi folks:

   Using XMLRPC for some service method calls to make life 
"easier"/cleaner for some of our code.  I am doing something wrong, as I 
get errors (at the end).

   I set up a simple application using the usual methods

	catalyst.pl RDB
	cd RDB
	script/rdb_create.pl controller Job

   I then set about to use portions of the examples in the 
Catalyst::Plugin::Server::XMLRPC .  Specifically I created a ping and 
echo method, to test.  I placed these in the Job.pm (rather than Root.pm 
... is this an issue?).  This is what they look like.


sub echo : XMLRPC {                     # available as: job.echo
         my ( $self, $c, @args ) = @_;
         $c->stash->{xmlrpc} = join ', ', @args;
  	$c->log->debug($args[0]);
     }

sub ping : XMLRPCPath('/job/ping') {        # available as: ping
         my ( $self, $c ) = @_;
         $c->stash->{xmlrpc} = 'Pong';
     }

Ok.  Light up the server, comes up fine:

landman at balto:~/remote_db_access/RDB$ script/rdb_server.pl
[debug] Debug messages enabled
[debug] Loaded plugins:
.----------------------------------------------------------------------------.
| Catalyst::Plugin::ConfigLoader  0.14 
      |
| Catalyst::Plugin::Server  0.24 
      |
| Catalyst::Plugin::Server::XMLRPC 
      |
| Catalyst::Plugin::Static::Simple  0.17 
      |
'----------------------------------------------------------------------------'

...

[debug] Loaded Private actions:
.----------------------+--------------------------------------+--------------.
| Private              | Class                                | Method 
      |
+----------------------+--------------------------------------+--------------+
| /end                 | RDB::Controller::Root                | end 
      |
| /job/ping            | RDB::Controller::Job                 | ping 
      |
| /job/echo            | RDB::Controller::Job                 | echo 
      |
'----------------------+--------------------------------------+--------------'
...
[debug] Loaded XMLRPCPath Method actions:
.--------------------------------------+---------------------------------------.
| XMLRPCPath Method                    | Private 
        |
+--------------------------------------+---------------------------------------+
| job.echo                             | /job/echo 
        |
| job.ping                             | /job/ping 
        |
'--------------------------------------+---------------------------------------'


Now try the echo call:

landman at balto:~$ rpc_client -u http://localhost:3000/rpc -m /job/echo \
			       abcd 123

I get this on the client side:

-----------------Output-----------
$VAR1 = {
           'faultString' => 'Internal Server Error',
           'faultCode' => '500'
         };


And I get this on the server side:

[info] RDB powered by Catalyst 5.7007
You can connect to your server at http://balto:3000
[info] *** Request 1 (0.011/s) [10821] [Sun Jul 22 23:05:27 2007] ***
[debug] "POST" request for "rpc" from "127.0.0.1"
[debug] XML-RPC: Method called: /job/echo
[debug] Path is "job/echo"
[debug] abcd
[debug] XMLRPC 500 Errors:
Caught exception in RDB::Controller::Root->end 
"Catalyst::Action::RenderView could not find a view to forward to."
[info] Request took 0.134054s (7.460/s)
.----------------------------------------------------------------+-----------.
| Action                                                         | Time 
      |
+----------------------------------------------------------------+-----------+
| /job/echo                                                      | 
0.000191s |
| /end                                                           | 
0.001559s |
'----------------------------------------------------------------+-----------'


Basically it is telling me that it doesn't have a view to forward to. 
Is this needed in Server::XMLRPC ?  I thought it did html encapsulated 
XML ... no view needed.

Any thoughts/clues?  Thanks.

Joe

-- 
Joe Landman
landman at scalableinformatics.com