git-annex/GetObject.hs
Joey Hess 1002c9448d playing with aws library
This is basically all I need to convert git-annex from hS3 to aws.

In particular, both GetObject and PutObject stream content w/o buffering it
in memory at all. \o/
2014-08-03 14:49:37 -04:00

24 lines
935 B
Haskell

{-# LANGUAGE OverloadedStrings #-}
import qualified Aws
import qualified Aws.S3 as S3
import Data.Conduit (($$+-))
import Data.Conduit.Binary (sinkFile)
import Network.HTTP.Conduit (withManager, responseBody)
main :: IO ()
main = do
{- Set up AWS credentials and the default configuration. -}
Just creds <- Aws.loadCredentialsFromEnv
let cfg = Aws.Configuration Aws.Timestamp creds (Aws.defaultLog Aws.Debug)
let s3cfg = Aws.defServiceConfig :: S3.S3Configuration Aws.NormalQuery
{- Set up a ResourceT region with an available HTTP manager. -}
withManager $ \mgr -> do
{- Create a request object with S3.getObject and run the request with pureAws. -}
S3.GetObjectResponse { S3.gorResponse = rsp } <-
Aws.pureAws cfg s3cfg mgr $
S3.getObject "joeyh-test" "cloud-remote.pdf"
{- Save the response to a file. -}
responseBody rsp $$+- sinkFile "cloud-remote2.pdf"