savon ruby best practices - global client or one per request? - ruby

Question

I have Savon working in a Sinatra ruby application. The application will be called frequently, and I don't want to lean on the server too much.
It looks to me that everytime the /test_savon GET is hit, I am going to the server and asking for the wdsl again. I would only need to do that once, it would seem.
Should I make a few clients as ruby globals (one for each wsdl) and use them repeatedly?
Here is my code which works: NTLM auth - talking to a MS DynamicsNav Server
get '/test_savon' do
# create a client for the service
client = Savon.client(wsdl: 'http://somedynamicsnavserver:7047/WS/Page/Salesperson', ntlm: ["username", "password"]) do
convert_request_keys_to :camelcase
end
operations = client.operations
puts "operations are #{operations.to_s}" if operations
puts "checked operations" if operations
# => [:find_user, :list_users]
# call the 'findUser' operation
response = client.call(:read, message: { code: 'salepersonIDhere' })
puts "response is #{response.to_s}" if response
response.body.to_s
# => {:read_result=>{:salesperson=>{:key=>"aKey", :code=>"salepersonIDhere", :name=>"Jim Kirk", :global_code=>"X", :phone_no=>"4407"}, :#xmlns=>"urn:microsoft-dynamics-schemas/page/salesperson"}}
end

Answer 1

I usually don't use a WSDL at all but work without it. That should be much faster because you should have less roundtrips.
A small example:
#!ruby
gem "savon", "~>2.0"
require 'savon'
stock_handle = ARGV[0] || 'OTEX'
client = Savon.client(
endpoint: 'http://www.webservicex.net/stockquote.asmx',
namespace: 'http://www.webserviceX.NET/',
convert_request_keys_to: :camelcase, # :camelcase, :upcase, :none
log: true,
log_level: :debug,
pretty_print_xml: true
)
response = client.call(
:get_quote,
soap_action: 'http://www.webserviceX.NET/GetQuote',
message: { "wsdl:symbol" => stock_handle}
)
print response.to_hash