* hiding 'id' field in participants because it's not used. but I wish the 'client_id' field is called 'id' and haven't figured out how to fix it via rabl

app/controllers/api_music_sessions_controller.rb

@@ -69,7 +69,7 @@ class ApiMusicSessionsController < ApplicationController
   end
 
   def participant_show
-    @connection = Connection.find(params[:id])
+    @connection = Connection.find_by_client_id(params[:id])
   end
 
   def participant_create
@@ -100,7 +100,7 @@ class ApiMusicSessionsController < ApplicationController
   def participant_delete
 
     ConnectionManager.active_record_transaction do |connection_manager|
-      @connection = Connection.find_by_client_id(params[:client_id])
+      @connection = Connection.find_by_client_id(params[:id])
 
       if @connection.nil?
         raise JamArgumentError, "no client found with specified client_id #{id}"

app/views/api_music_sessions/member_show.rabl

@@ -1,3 +1,3 @@
 object @connection
 
-attributes :id, :ip_address, :client_id
+attributes :ip_address, :client_id => :id

app/views/api_music_sessions/participant_show.rabl

@@ -0,0 +1,3 @@
+object @connection
+
+attributes :ip_address, :client_id

app/views/api_music_sessions/show.rabl

@@ -4,5 +4,5 @@ attributes :id, :description
 
 child(:connections => :participants) {
     collection @music_sessions, :object_root => false
-    attributes :id, :ip_address, :client_id
+    attributes :ip_address, :client_id
 }

config/routes.rb

@@ -26,8 +26,8 @@ SampleApp::Application.routes.draw do
   scope '/api' do
     # music sessions
     match '/sessions/:id/participants' => 'api_music_sessions#participant_create', :via => :post
-    match '/participants/:client_id' => 'api_music_sessions#participant_show', :via => :get, :as => 'api_session_participant_detail'
-    match '/participants/:client_id' => 'api_music_sessions#participant_delete', :via => :delete
+    match '/participants/:id' => 'api_music_sessions#participant_show', :via => :get, :as => 'api_session_participant_detail'
+    match '/participants/:id' => 'api_music_sessions#participant_delete', :via => :delete
     match '/sessions/:id' => 'api_music_sessions#show', :via => :get, :as => 'api_session_detail'
     match '/sessions/:id' => 'api_music_sessions#delete', :via => :delete
     match '/sessions' => 'api_music_sessions#index', :via => :get