{-# 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.AppSync.GetIntrospectionSchema
-- Copyright   : (c) 2013-2018 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves the introspection schema for a GraphQL API.
--
--
module Network.AWS.AppSync.GetIntrospectionSchema
    (
    -- * Creating a Request
      getIntrospectionSchema
    , GetIntrospectionSchema
    -- * Request Lenses
    , gisApiId
    , gisFormat

    -- * Destructuring the Response
    , getIntrospectionSchemaResponse
    , GetIntrospectionSchemaResponse
    -- * Response Lenses
    , gisrsSchema
    , gisrsResponseStatus
    ) where

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

-- | /See:/ 'getIntrospectionSchema' smart constructor.
data GetIntrospectionSchema = GetIntrospectionSchema'
  { _gisApiId  :: !Text
  , _gisFormat :: !OutputType
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetIntrospectionSchema' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gisApiId' - The API ID.
--
-- * 'gisFormat' - The schema format: SDL or JSON.
getIntrospectionSchema
    :: Text -- ^ 'gisApiId'
    -> OutputType -- ^ 'gisFormat'
    -> GetIntrospectionSchema
getIntrospectionSchema pApiId_ pFormat_ =
  GetIntrospectionSchema' {_gisApiId = pApiId_, _gisFormat = pFormat_}


-- | The API ID.
gisApiId :: Lens' GetIntrospectionSchema Text
gisApiId = lens _gisApiId (\ s a -> s{_gisApiId = a})

-- | The schema format: SDL or JSON.
gisFormat :: Lens' GetIntrospectionSchema OutputType
gisFormat = lens _gisFormat (\ s a -> s{_gisFormat = a})

instance AWSRequest GetIntrospectionSchema where
        type Rs GetIntrospectionSchema =
             GetIntrospectionSchemaResponse
        request = get appSync
        response
          = receiveBytes
              (\ s h x ->
                 GetIntrospectionSchemaResponse' <$>
                   (pure (Just x)) <*> (pure (fromEnum s)))

instance Hashable GetIntrospectionSchema where

instance NFData GetIntrospectionSchema where

instance ToHeaders GetIntrospectionSchema where
        toHeaders
          = const
              (mconcat
                 ["Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToPath GetIntrospectionSchema where
        toPath GetIntrospectionSchema'{..}
          = mconcat ["/v1/apis/", toBS _gisApiId, "/schema"]

instance ToQuery GetIntrospectionSchema where
        toQuery GetIntrospectionSchema'{..}
          = mconcat ["format" =: _gisFormat]

-- | /See:/ 'getIntrospectionSchemaResponse' smart constructor.
data GetIntrospectionSchemaResponse = GetIntrospectionSchemaResponse'
  { _gisrsSchema         :: !(Maybe ByteString)
  , _gisrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetIntrospectionSchemaResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gisrsSchema' - The schema, in GraphQL Schema Definition Language (SDL) format. For more information, see the <http://graphql.org/learn/schema/ GraphQL SDL documentation> .
--
-- * 'gisrsResponseStatus' - -- | The response status code.
getIntrospectionSchemaResponse
    :: Int -- ^ 'gisrsResponseStatus'
    -> GetIntrospectionSchemaResponse
getIntrospectionSchemaResponse pResponseStatus_ =
  GetIntrospectionSchemaResponse'
    {_gisrsSchema = Nothing, _gisrsResponseStatus = pResponseStatus_}


-- | The schema, in GraphQL Schema Definition Language (SDL) format. For more information, see the <http://graphql.org/learn/schema/ GraphQL SDL documentation> .
gisrsSchema :: Lens' GetIntrospectionSchemaResponse (Maybe ByteString)
gisrsSchema = lens _gisrsSchema (\ s a -> s{_gisrsSchema = a})

-- | -- | The response status code.
gisrsResponseStatus :: Lens' GetIntrospectionSchemaResponse Int
gisrsResponseStatus = lens _gisrsResponseStatus (\ s a -> s{_gisrsResponseStatus = a})

instance NFData GetIntrospectionSchemaResponse where