[rabbitmq-discuss] Erlang Client

[Matthew Sackman]

Hi Colin,

On Wed, Apr 07, 2010 at 01:27:01PM -0500, Colin Clark wrote:
> I'm having difficulty getting the Erlang client to connect to a
> rabbitmq server - I'm using the stocks_example and the latest erlang
> client code and attempting to run within erlide.  The error message
> I'm getting is:
> 
> 10> stocks_example:start().
> ** exception error: no match of right hand side value
>                     {error,
>                         {undef,
>                             [{rabbit_net,send,
>                                  [#Port<0.527>,<<65,77,81,80,1,1,8,0>>]},
>                              {amqp_network_connection,do_handshake,1},
>                              {amqp_network_connection,init,1},
>                              {gen_server,init_it,6},
>                              {proc_lib,init_p_do_apply,3}]}}
>      in function  amqp_connection:start_network_internal/2
>      in call from stocks_example:amqp_lifecycle/0
> 
> If anyone could point me in the right direction, I'd appreciate it.

I suspect you're missing the rabbit_common package on your path. If you
build the erlang client then you should find in the dist directory the
rabbit_common directory and .ez. Then:

ERL_LIBS=deps:dist erl -pa ebin

should work:

> ERL_LIBS=deps:dist erl -pa ebin
Erlang R13B04 (erts-5.7.5) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.7.5  (abort with ^G)
1> rr("include/amqp_client.hrl").
['P_access','P_basic','P_channel','P_connection','P_dtx',
 'P_exchange','P_file','P_queue','P_stream','P_test',
 'P_tunnel','P_tx','access.request','access.request_ok',
 amqp_error,amqp_msg,amqp_params,amqqueue,'basic.ack',
 'basic.cancel','basic.cancel_ok','basic.consume',
 'basic.consume_ok','basic.deliver','basic.get',
 'basic.get_empty','basic.get_ok','basic.publish',
 'basic.qos'|...]
2> Conn = amqp_connection:start_network_link(#amqp_params{}).
<0.44.0>

=INFO REPORT==== 7-Apr-2010::19:35:05 ===
Negotiated maximums: (Channel = 0, Frame= 131072, Heartbeat=0)
3> 

It's likely just the ERL_LIBS=deps:dist bit your missing, would be my
guess.

Matthew