diff --git a/TODO b/TODO
index e69de29b..b74fc905 100644
--- a/TODO
+++ b/TODO
@@ -0,0 +1 @@
+Catch exceptions and return as 500 errors
diff --git a/Web/Restful/Application.hs b/Web/Restful/Application.hs
index 6903b3f2..eb287784 100644
--- a/Web/Restful/Application.hs
+++ b/Web/Restful/Application.hs
@@ -25,6 +25,7 @@ module Web.Restful.Application
 import Web.Encodings
 import qualified Data.ByteString.Lazy as B
 import Data.Object
+import Data.Enumerable
 
 import qualified Hack
 import Hack.Middleware.CleanPath
@@ -95,7 +96,7 @@ toHackApp a = do
 findResourceNames :: ResourceName a model
                   => Resource
                   -> [(a, [(String, String)])]
-findResourceNames r = takeJusts $ map (checkPatternHelper r) allValues
+findResourceNames r = takeJusts $ map (checkPatternHelper r) enumerate
 
 checkPatternHelper :: ResourceName a model
                    => Resource
diff --git a/Web/Restful/Helpers/Auth.hs b/Web/Restful/Helpers/Auth.hs
index fec60a3d..82b3114a 100644
--- a/Web/Restful/Helpers/Auth.hs
+++ b/Web/Restful/Helpers/Auth.hs
@@ -21,6 +21,7 @@ import qualified Hack
 import Web.Encodings
 import qualified Web.Authenticate.Rpxnow as Rpxnow
 import qualified Web.Authenticate.OpenId as OpenId
+import Data.Enumerable
 
 import Web.Restful
 import Web.Restful.Constants
@@ -39,17 +40,8 @@ data AuthResource =
     | LoginRpxnow
     deriving Show
 
-type RpxnowApiKey = String -- FIXME newtype
-instance ResourceName AuthResource (Maybe RpxnowApiKey) where
-    getHandler _ Check Get = authCheck
-    getHandler _ Logout Get = authLogout
-    getHandler _ Openid Get = authOpenidForm
-    getHandler _ OpenidForward Get = authOpenidForward
-    getHandler _ OpenidComplete Get = authOpenidComplete
-    getHandler (Just key) LoginRpxnow Get = rpxnowLogin key
-    getHandler _ _ _ = notFound
-
-    allValues =
+instance Enumerable AuthResource where
+    enumerate =
         Check
         : Logout
         : Openid
@@ -58,6 +50,16 @@ instance ResourceName AuthResource (Maybe RpxnowApiKey) where
         : LoginRpxnow
         : []
 
+type RpxnowApiKey = String -- FIXME newtype
+instance ResourceName AuthResource (Maybe RpxnowApiKey) where
+    getHandler _ Check Get = authCheck
+    getHandler _ Logout Get = authLogout
+    getHandler _ Openid Get = authOpenidForm
+    getHandler _ OpenidForward Get = authOpenidForward
+    getHandler _ OpenidComplete Get = authOpenidComplete
+    getHandler (Just key) LoginRpxnow Post = rpxnowLogin key
+    getHandler _ _ _ = notFound
+
     resourcePattern Check = "/auth/check/"
     resourcePattern Logout = "/auth/logout/"
     resourcePattern Openid = "/auth/openid/"
@@ -130,8 +132,8 @@ authOpenidComplete = do
 data RpxnowRequest = RpxnowRequest String (Maybe String)
 instance Request RpxnowRequest where
     parseRequest = do
-        token <- getParam "token"
-        dest <- getParam "dest"
+        token <- postParam "token"
+        dest <- postParam "dest"
         return $! RpxnowRequest token $ chopHash `fmap` dest
 
 chopHash :: String -> String
diff --git a/Web/Restful/Resource.hs b/Web/Restful/Resource.hs
index 2415f776..5c47dc34 100644
--- a/Web/Restful/Resource.hs
+++ b/Web/Restful/Resource.hs
@@ -30,6 +30,7 @@ import Data.List.Split (splitOn)
 import Web.Restful.Definitions
 import Web.Restful.Handler
 import Data.List (intercalate)
+import Data.Enumerable
 
 import Test.Framework (testGroup, Test)
 import Test.Framework.Providers.HUnit
@@ -64,7 +65,7 @@ fromString' ('$':rest) = Dynamic rest
 fromString' ('*':rest) = Slurp rest
 fromString' x = Static x
 
-class Show a => ResourceName a b | a -> b where
+class (Show a, Enumerable a) => ResourceName a b | a -> b where
     -- | Get the URL pattern for each different resource name.
     -- Something like /foo/$bar/baz/ will match the regular expression
     -- /foo/(\\w*)/baz/, matching the middle part with the urlParam bar.
@@ -73,11 +74,6 @@ class Show a => ResourceName a b | a -> b where
     -- into the bar urlParam.
     resourcePattern :: a -> String
 
-    -- | Get all possible values for resource names.
-    -- Remember, if you use variables ($foo) in your resourcePatterns you
-    -- can get an unlimited number of resources for each resource name.
-    allValues :: [a]
-
     -- | Find the handler for each resource name/verb pattern.
     getHandler :: b -> a -> Verb -> Handler
 
@@ -123,7 +119,7 @@ overlaps (Static a:x) (Static b:y) = a == b && overlaps x y
 
 checkResourceName :: (Monad m, ResourceName rn model) => rn -> m ()
 checkResourceName rn = do
-    let avs@(y:_) = allValues
+    let avs@(y:_) = enumerate
         _ignore = asTypeOf rn y
     let patterns = map (fromString . resourcePattern) avs
     case validatePatterns patterns of
diff --git a/restful.cabal b/restful.cabal
index 029211bb..68a5a6e6 100644
--- a/restful.cabal
+++ b/restful.cabal
@@ -1,5 +1,5 @@
 name:            restful
-version:         0.1.2
+version:         0.1.3
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -35,7 +35,8 @@ library
                      test-framework-quickcheck,
                      test-framework-hunit,
                      HUnit,
-                     QuickCheck == 1.*
+                     QuickCheck == 1.*,
+                     enumerable >= 0.0.3
     exposed-modules: Web.Restful,
                      Web.Restful.Constants,
                      Web.Restful.Request,