define callback_url directly in yml file

README.rdoc

@@ -18,12 +18,14 @@ Poundpay is a payments platform for marketplaces
     development:
       developer_sid: DV0383d447360511e0bbac00264a09ff3c
       auth_token: c31155b9f944d7aed204bdb2a253fef13b4fdcc6ae1540200449cc4526b2381a
+      callback_url: http://staging.awesomemarketplace.com/payments/callback
       www_url: https://www-sandbox.poundpay.com
       api_url: https://api-sandbox.poundpay.com
 
     production:
       developer_sid: DV8dd93f0f3c6411e0863f00264a09ff3c
       auth_token: d8c4ea1bafd3fcac8c1062a72c22bcdb09321deb1041df257165cd6449def0de
+      callback_url: http://www.awesomemarketplace.com/payments/callback
 
 4. Create the file config/initializers/poundpay.rb and add the following
 

lib/poundpay.rb

@@ -11,6 +11,7 @@ module Poundpay
 
   class << self
     attr_writer :api_version
+    attr_accessor :callback_url
 
     def configure(developer_sid, auth_token)
       warn "warning: Poundpay is already configured" if configured?
@@ -30,20 +31,29 @@ def configure(developer_sid, auth_token)
       Resource.user = developer_sid
       Resource.password = auth_token
       @configured = true
+
+      # Set callback_url if defined in configuration
+      if callback_url
+        @me = Developer.me
+        @me.callback_url = callback_url
+        @me.save!
+      end
     end
 
     def configure_from_hash(config)
       configure(config["developer_sid"], config["auth_token"]) do |c|
         c.www_url = config["www_url"] || WWW_URL
         c.api_url = config["api_url"] || API_URL
         c.api_version = config["api_version"] || API_VERSION
+        c.callback_url = config["callback_url"] || nil
       end
     end
 
     def clear_config!
       @www_url = nil
       @api_url = nil
       @api_version = nil
+      @callback_url = nil
       Resource.site = nil
       Resource.user = nil
       Resource.password = nil

spec/poundpay_spec.rb

@@ -56,6 +56,17 @@
       Poundpay.api_url.should == "https://api-sandbox.poundpay.com"
       Poundpay.api_version.should == "gold"
     end
+
+    it "should configure callback_url" do
+      callback_url = "http://awesomemarketplace.com/payments/callback"
+      @developer = Poundpay::Developer.new
+      @developer.should_receive(:save!)
+      Poundpay::Developer.should_receive(:me).and_return(@developer)
+      Poundpay.configure("DV0383d447360511e0bbac00264a09ff3c", "c31155b9f944d7aed204bdb2a253fef13b4fdcc6ae1540200449cc4526b2381a") do |c|
+        c.callback_url = callback_url
+      end
+      @developer.callback_url.should == callback_url
+    end
   end
 
   describe ".configure_from_hash" do
@@ -104,6 +115,16 @@
     it "should not accept an invalid configuration" do
       expect { Poundpay.configure_from_hash @config["invalid"] }.to raise_error(ArgumentError)
     end
+
+    it "should configure callback_url" do
+      config = @config["production"]
+      config["callback_url"] = "http://awesomemarketplace.com/payments/callback"
+      @developer = Poundpay::Developer.new
+      @developer.should_receive(:save!)
+      Poundpay::Developer.should_receive(:me).and_return(@developer)
+      Poundpay.configure_from_hash config
+      @developer.callback_url.should == config["callback_url"]
+    end
   end
 
   describe ".clear_config!" do