{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

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

-- |
-- Module      : Amazonka.SNS.Unsubscribe
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Deletes a subscription. If the subscription requires authentication for
-- deletion, only the owner of the subscription or the topic\'s owner can
-- unsubscribe, and an Amazon Web Services signature is required. If the
-- @Unsubscribe@ call does not require authentication and the requester is
-- not the subscription owner, a final cancellation message is delivered to
-- the endpoint, so that the endpoint owner can easily resubscribe to the
-- topic if the @Unsubscribe@ request was unintended.
--
-- Amazon SQS queue subscriptions require authentication for deletion. Only
-- the owner of the subscription, or the owner of the topic can unsubscribe
-- using the required Amazon Web Services signature.
--
-- This action is throttled at 100 transactions per second (TPS).
module Amazonka.SNS.Unsubscribe
  ( -- * Creating a Request
    Unsubscribe (..),
    newUnsubscribe,

    -- * Request Lenses
    unsubscribe_subscriptionArn,

    -- * Destructuring the Response
    UnsubscribeResponse (..),
    newUnsubscribeResponse,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response
import Amazonka.SNS.Types

-- | Input for Unsubscribe action.
--
-- /See:/ 'newUnsubscribe' smart constructor.
data Unsubscribe = Unsubscribe'
  { -- | The ARN of the subscription to be deleted.
    subscriptionArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'Unsubscribe' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'subscriptionArn', 'unsubscribe_subscriptionArn' - The ARN of the subscription to be deleted.
newUnsubscribe ::
  -- | 'subscriptionArn'
  Prelude.Text ->
  Unsubscribe
newUnsubscribe pSubscriptionArn_ =
  Unsubscribe' {subscriptionArn = pSubscriptionArn_}

-- | The ARN of the subscription to be deleted.
unsubscribe_subscriptionArn :: Lens.Lens' Unsubscribe Prelude.Text
unsubscribe_subscriptionArn = Lens.lens (\Unsubscribe' {subscriptionArn} -> subscriptionArn) (\s@Unsubscribe' {} a -> s {subscriptionArn = a} :: Unsubscribe)

instance Core.AWSRequest Unsubscribe where
  type AWSResponse Unsubscribe = UnsubscribeResponse
  request overrides =
    Request.postQuery (overrides defaultService)
  response = Response.receiveNull UnsubscribeResponse'

instance Prelude.Hashable Unsubscribe where
  hashWithSalt _salt Unsubscribe' {..} =
    _salt `Prelude.hashWithSalt` subscriptionArn

instance Prelude.NFData Unsubscribe where
  rnf Unsubscribe' {..} = Prelude.rnf subscriptionArn

instance Data.ToHeaders Unsubscribe where
  toHeaders = Prelude.const Prelude.mempty

instance Data.ToPath Unsubscribe where
  toPath = Prelude.const "/"

instance Data.ToQuery Unsubscribe where
  toQuery Unsubscribe' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ("Unsubscribe" :: Prelude.ByteString),
        "Version"
          Data.=: ("2010-03-31" :: Prelude.ByteString),
        "SubscriptionArn" Data.=: subscriptionArn
      ]

-- | /See:/ 'newUnsubscribeResponse' smart constructor.
data UnsubscribeResponse = UnsubscribeResponse'
  {
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'UnsubscribeResponse' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
newUnsubscribeResponse ::
  UnsubscribeResponse
newUnsubscribeResponse = UnsubscribeResponse'

instance Prelude.NFData UnsubscribeResponse where
  rnf _ = ()