Publish.hs

{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
{-# LANGUAGE OverloadedStrings  #-}
{-# LANGUAGE RecordWildCards    #-}
{-# LANGUAGE TypeFamilies       #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-binds   #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Network.AWS.IoTDataPlane.Publish
-- Copyright   : (c) 2013-2016 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Publishes state information.
--
-- For more information, see
-- <http://docs.aws.amazon.com/iot/latest/developerguide/protocols.html#http HTTP Protocol>
-- in the /AWS IoT Developer Guide/.
module Network.AWS.IoTDataPlane.Publish
    (
    -- * Creating a Request
      publish
    , Publish
    -- * Request Lenses
    , pPayload
    , pQos
    , pTopic

    -- * Destructuring the Response
    , publishResponse
    , PublishResponse
    ) where

import           Network.AWS.IoTDataPlane.Types
import           Network.AWS.IoTDataPlane.Types.Product
import           Network.AWS.Lens
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | The input for the Publish operation.
--
-- /See:/ 'publish' smart constructor.
data Publish = Publish'
    { _pPayload :: !(Maybe (HashMap Text Value))
    , _pQos     :: !(Maybe Nat)
    , _pTopic   :: !Text
    } deriving (Eq,Show,Data,Typeable,Generic)

-- | Creates a value of 'Publish' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'pPayload'
--
-- * 'pQos'
--
-- * 'pTopic'
publish
    :: Text -- ^ 'pTopic'
    -> Publish
publish pTopic_ =
    Publish'
    { _pPayload = Nothing
    , _pQos = Nothing
    , _pTopic = pTopic_
    }

-- | The state information, in JSON format.
pPayload :: Lens' Publish (Maybe (HashMap Text Value))
pPayload = lens _pPayload (\ s a -> s{_pPayload = a});

-- | The Quality of Service (QoS) level.
pQos :: Lens' Publish (Maybe Natural)
pQos = lens _pQos (\ s a -> s{_pQos = a}) . mapping _Nat;

-- | The name of the MQTT topic.
pTopic :: Lens' Publish Text
pTopic = lens _pTopic (\ s a -> s{_pTopic = a});

instance AWSRequest Publish where
        type Rs Publish = PublishResponse
        request = postBody ioTDataPlane
        response = receiveNull PublishResponse'

instance Hashable Publish

instance NFData Publish

instance ToBody Publish where
        toBody = toBody . _pPayload

instance ToHeaders Publish where
        toHeaders = const mempty

instance ToPath Publish where
        toPath Publish'{..}
          = mconcat ["/topics/", toBS _pTopic]

instance ToQuery Publish where
        toQuery Publish'{..} = mconcat ["qos" =: _pQos]

-- | /See:/ 'publishResponse' smart constructor.
data PublishResponse =
    PublishResponse'
    deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'PublishResponse' with the minimum fields required to make a request.
--
publishResponse
    :: PublishResponse
publishResponse = PublishResponse'

instance NFData PublishResponse