{-# 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.SSM.GetParameter
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Get information about a single parameter by specifying the parameter
-- name.
--
-- To get information about more than one parameter at a time, use the
-- GetParameters operation.
module Amazonka.SSM.GetParameter
  ( -- * Creating a Request
    GetParameter (..),
    newGetParameter,

    -- * Request Lenses
    getParameter_withDecryption,
    getParameter_name,

    -- * Destructuring the Response
    GetParameterResponse (..),
    newGetParameterResponse,

    -- * Response Lenses
    getParameterResponse_httpStatus,
    getParameterResponse_parameter,
  )
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.SSM.Types

-- | /See:/ 'newGetParameter' smart constructor.
data GetParameter = GetParameter'
  { -- | Return decrypted values for secure string parameters. This flag is
    -- ignored for @String@ and @StringList@ parameter types.
    withDecryption :: Prelude.Maybe Prelude.Bool,
    -- | The name of the parameter you want to query.
    --
    -- To query by parameter label, use @\"Name\": \"name:label\"@. To query by
    -- parameter version, use @\"Name\": \"name:version\"@.
    name :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetParameter' 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:
--
-- 'withDecryption', 'getParameter_withDecryption' - Return decrypted values for secure string parameters. This flag is
-- ignored for @String@ and @StringList@ parameter types.
--
-- 'name', 'getParameter_name' - The name of the parameter you want to query.
--
-- To query by parameter label, use @\"Name\": \"name:label\"@. To query by
-- parameter version, use @\"Name\": \"name:version\"@.
newGetParameter ::
  -- | 'name'
  Prelude.Text ->
  GetParameter
newGetParameter pName_ =
  GetParameter'
    { withDecryption = Prelude.Nothing,
      name = pName_
    }

-- | Return decrypted values for secure string parameters. This flag is
-- ignored for @String@ and @StringList@ parameter types.
getParameter_withDecryption :: Lens.Lens' GetParameter (Prelude.Maybe Prelude.Bool)
getParameter_withDecryption = Lens.lens (\GetParameter' {withDecryption} -> withDecryption) (\s@GetParameter' {} a -> s {withDecryption = a} :: GetParameter)

-- | The name of the parameter you want to query.
--
-- To query by parameter label, use @\"Name\": \"name:label\"@. To query by
-- parameter version, use @\"Name\": \"name:version\"@.
getParameter_name :: Lens.Lens' GetParameter Prelude.Text
getParameter_name = Lens.lens (\GetParameter' {name} -> name) (\s@GetParameter' {} a -> s {name = a} :: GetParameter)

instance Core.AWSRequest GetParameter where
  type AWSResponse GetParameter = GetParameterResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          GetParameterResponse'
            Prelude.<$> (Prelude.pure (Prelude.fromEnum s))
            Prelude.<*> (x Data..:> "Parameter")
      )

instance Prelude.Hashable GetParameter where
  hashWithSalt _salt GetParameter' {..} =
    _salt
      `Prelude.hashWithSalt` withDecryption
      `Prelude.hashWithSalt` name

instance Prelude.NFData GetParameter where
  rnf GetParameter' {..} =
    Prelude.rnf withDecryption
      `Prelude.seq` Prelude.rnf name

instance Data.ToHeaders GetParameter where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ("AmazonSSM.GetParameter" :: Prelude.ByteString),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON GetParameter where
  toJSON GetParameter' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("WithDecryption" Data..=)
              Prelude.<$> withDecryption,
            Prelude.Just ("Name" Data..= name)
          ]
      )

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

instance Data.ToQuery GetParameter where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newGetParameterResponse' smart constructor.
data GetParameterResponse = GetParameterResponse'
  { -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | Information about a parameter.
    parameter :: Parameter
  }
  deriving (Prelude.Eq, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetParameterResponse' 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:
--
-- 'httpStatus', 'getParameterResponse_httpStatus' - The response's http status code.
--
-- 'parameter', 'getParameterResponse_parameter' - Information about a parameter.
newGetParameterResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  -- | 'parameter'
  Parameter ->
  GetParameterResponse
newGetParameterResponse pHttpStatus_ pParameter_ =
  GetParameterResponse'
    { httpStatus = pHttpStatus_,
      parameter = pParameter_
    }

-- | The response's http status code.
getParameterResponse_httpStatus :: Lens.Lens' GetParameterResponse Prelude.Int
getParameterResponse_httpStatus = Lens.lens (\GetParameterResponse' {httpStatus} -> httpStatus) (\s@GetParameterResponse' {} a -> s {httpStatus = a} :: GetParameterResponse)

-- | Information about a parameter.
getParameterResponse_parameter :: Lens.Lens' GetParameterResponse Parameter
getParameterResponse_parameter = Lens.lens (\GetParameterResponse' {parameter} -> parameter) (\s@GetParameterResponse' {} a -> s {parameter = a} :: GetParameterResponse)

instance Prelude.NFData GetParameterResponse where
  rnf GetParameterResponse' {..} =
    Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf parameter