Make simple yesod project

app/Main.hs

@@ -1,6 +1,10 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TypeFamilies      #-}
+
 module Main where
 
 import           Props
+import           Yesod
 
 main :: IO ()
-main = putStrLn helloWorld
+main = warp 3000 App

package.yaml

@@ -13,6 +13,7 @@ extra-doc-files:
 
 dependencies:
 - base >= 4.7 && < 5
+- yesod
 
 library:
   source-dirs: src

props.cabal

@@ -1,10 +1,8 @@
 cabal-version: 1.18
 
--- This file has been generated from package.yaml by hpack version 0.33.0.
+-- This file has been generated from package.yaml by hpack version 0.34.2.
 --
 -- see: https://github.com/sol/hpack
---
--- hash: 057a536ac3d0fd40b3122084eee53201158527bbcd0dbac7cec33d8fd06cf208
 
 name:           props
 version:        0.1.0.0
@@ -29,6 +27,7 @@ library
       src
   build-depends:
       base >=4.7 && <5
+    , yesod
   default-language: Haskell2010
 
 executable props
@@ -41,4 +40,5 @@ executable props
   build-depends:
       base >=4.7 && <5
     , props
+    , yesod
   default-language: Haskell2010

src/Props.hs

@@ -1,4 +1,19 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes       #-}
+{-# LANGUAGE TemplateHaskell   #-}
+{-# LANGUAGE TypeFamilies      #-}
+
 module Props where
 
-helloWorld :: String
-helloWorld = "Hello World!"
+import           Yesod
+
+data App = App
+
+mkYesod "App" [parseRoutes|
+/ HomeR GET
+|]
+
+instance Yesod App
+
+getHomeR :: Handler Html
+getHomeR = defaultLayout [whamlet|Hello World!|]