diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@
 
 HTTP client for haskell, inpired by [requests](https://requests.readthedocs.io/) and [http-dispatch](https://github.com/owainlewis/http-dispatch).
 
+## Installation
+
+This pacakge is published on [hackage](http://hackage.haskell.org/package/request) with the same name `request`, you can install it with cabal or stack or nix as any other hackage packages.
+
 ## Usage
 
 You can try this in haskell REPL once you have `request` installed:
@@ -90,6 +94,10 @@
 ```
 
 These shortcuts' definitions are simple and direct. You are encouraged to add your own if the built-in does not match your use cases, like add custom headers in every request.
+
+## API Documents
+
+See the hackage page: http://hackage.haskell.org/package/request/docs/Network-HTTP-Request.html
 
 ## About the Project
 
diff --git a/request.cabal b/request.cabal
--- a/request.cabal
+++ b/request.cabal
@@ -1,5 +1,5 @@
 name:                request
-version:             0.2.0.0
+version:             0.2.1.0
 -- synopsis:
 description:         "HTTP client for haskell, inpired by requests and http-dispatch."
 homepage:            https://github.com/aisk/request#readme
diff --git a/src/Network/HTTP/Request.hs b/src/Network/HTTP/Request.hs
--- a/src/Network/HTTP/Request.hs
+++ b/src/Network/HTTP/Request.hs
@@ -5,18 +5,11 @@
   ( Header
   , Headers
   , Method (..)
-  , Request
-  , Response
+  , Request (..)
+  , Response (..)
   , get
   , post
   , put
-  , requestBody
-  , requestHeaders
-  , requestMethod
-  , requestUrl
-  , responseBody
-  , responseHeaders
-  , responseStatus
   , send
   ) where