{-# 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.AppMesh.ListMeshes
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns a list of existing service meshes.
--
-- This operation returns paginated results.
module Amazonka.AppMesh.ListMeshes
  ( -- * Creating a Request
    ListMeshes (..),
    newListMeshes,

    -- * Request Lenses
    listMeshes_limit,
    listMeshes_nextToken,

    -- * Destructuring the Response
    ListMeshesResponse (..),
    newListMeshesResponse,

    -- * Response Lenses
    listMeshesResponse_nextToken,
    listMeshesResponse_httpStatus,
    listMeshesResponse_meshes,
  )
where

import Amazonka.AppMesh.Types
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

-- |
--
-- /See:/ 'newListMeshes' smart constructor.
data ListMeshes = ListMeshes'
  { -- | The maximum number of results returned by @ListMeshes@ in paginated
    -- output. When you use this parameter, @ListMeshes@ returns only @limit@
    -- results in a single page along with a @nextToken@ response element. You
    -- can see the remaining results of the initial request by sending another
    -- @ListMeshes@ request with the returned @nextToken@ value. This value can
    -- be between 1 and 100. If you don\'t use this parameter, @ListMeshes@
    -- returns up to 100 results and a @nextToken@ value if applicable.
    ListMeshes -> Maybe Natural
limit :: Prelude.Maybe Prelude.Natural,
    -- | The @nextToken@ value returned from a previous paginated @ListMeshes@
    -- request where @limit@ was used and the results exceeded the value of
    -- that parameter. Pagination continues from the end of the previous
    -- results that returned the @nextToken@ value.
    --
    -- This token should be treated as an opaque identifier that is used only
    -- to retrieve the next items in a list and not for other programmatic
    -- purposes.
    ListMeshes -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (ListMeshes -> ListMeshes -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ListMeshes -> ListMeshes -> Bool
$c/= :: ListMeshes -> ListMeshes -> Bool
== :: ListMeshes -> ListMeshes -> Bool
$c== :: ListMeshes -> ListMeshes -> Bool
Prelude.Eq, ReadPrec [ListMeshes]
ReadPrec ListMeshes
Int -> ReadS ListMeshes
ReadS [ListMeshes]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [ListMeshes]
$creadListPrec :: ReadPrec [ListMeshes]
readPrec :: ReadPrec ListMeshes
$creadPrec :: ReadPrec ListMeshes
readList :: ReadS [ListMeshes]
$creadList :: ReadS [ListMeshes]
readsPrec :: Int -> ReadS ListMeshes
$creadsPrec :: Int -> ReadS ListMeshes
Prelude.Read, Int -> ListMeshes -> ShowS
[ListMeshes] -> ShowS
ListMeshes -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ListMeshes] -> ShowS
$cshowList :: [ListMeshes] -> ShowS
show :: ListMeshes -> String
$cshow :: ListMeshes -> String
showsPrec :: Int -> ListMeshes -> ShowS
$cshowsPrec :: Int -> ListMeshes -> ShowS
Prelude.Show, forall x. Rep ListMeshes x -> ListMeshes
forall x. ListMeshes -> Rep ListMeshes x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ListMeshes x -> ListMeshes
$cfrom :: forall x. ListMeshes -> Rep ListMeshes x
Prelude.Generic)

-- |
-- Create a value of 'ListMeshes' 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:
--
-- 'limit', 'listMeshes_limit' - The maximum number of results returned by @ListMeshes@ in paginated
-- output. When you use this parameter, @ListMeshes@ returns only @limit@
-- results in a single page along with a @nextToken@ response element. You
-- can see the remaining results of the initial request by sending another
-- @ListMeshes@ request with the returned @nextToken@ value. This value can
-- be between 1 and 100. If you don\'t use this parameter, @ListMeshes@
-- returns up to 100 results and a @nextToken@ value if applicable.
--
-- 'nextToken', 'listMeshes_nextToken' - The @nextToken@ value returned from a previous paginated @ListMeshes@
-- request where @limit@ was used and the results exceeded the value of
-- that parameter. Pagination continues from the end of the previous
-- results that returned the @nextToken@ value.
--
-- This token should be treated as an opaque identifier that is used only
-- to retrieve the next items in a list and not for other programmatic
-- purposes.
newListMeshes ::
  ListMeshes
newListMeshes :: ListMeshes
newListMeshes =
  ListMeshes'
    { $sel:limit:ListMeshes' :: Maybe Natural
limit = forall a. Maybe a
Prelude.Nothing,
      $sel:nextToken:ListMeshes' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing
    }

-- | The maximum number of results returned by @ListMeshes@ in paginated
-- output. When you use this parameter, @ListMeshes@ returns only @limit@
-- results in a single page along with a @nextToken@ response element. You
-- can see the remaining results of the initial request by sending another
-- @ListMeshes@ request with the returned @nextToken@ value. This value can
-- be between 1 and 100. If you don\'t use this parameter, @ListMeshes@
-- returns up to 100 results and a @nextToken@ value if applicable.
listMeshes_limit :: Lens.Lens' ListMeshes (Prelude.Maybe Prelude.Natural)
listMeshes_limit :: Lens' ListMeshes (Maybe Natural)
listMeshes_limit = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListMeshes' {Maybe Natural
limit :: Maybe Natural
$sel:limit:ListMeshes' :: ListMeshes -> Maybe Natural
limit} -> Maybe Natural
limit) (\s :: ListMeshes
s@ListMeshes' {} Maybe Natural
a -> ListMeshes
s {$sel:limit:ListMeshes' :: Maybe Natural
limit = Maybe Natural
a} :: ListMeshes)

-- | The @nextToken@ value returned from a previous paginated @ListMeshes@
-- request where @limit@ was used and the results exceeded the value of
-- that parameter. Pagination continues from the end of the previous
-- results that returned the @nextToken@ value.
--
-- This token should be treated as an opaque identifier that is used only
-- to retrieve the next items in a list and not for other programmatic
-- purposes.
listMeshes_nextToken :: Lens.Lens' ListMeshes (Prelude.Maybe Prelude.Text)
listMeshes_nextToken :: Lens' ListMeshes (Maybe Text)
listMeshes_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListMeshes' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:ListMeshes' :: ListMeshes -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: ListMeshes
s@ListMeshes' {} Maybe Text
a -> ListMeshes
s {$sel:nextToken:ListMeshes' :: Maybe Text
nextToken = Maybe Text
a} :: ListMeshes)

instance Core.AWSPager ListMeshes where
  page :: ListMeshes -> AWSResponse ListMeshes -> Maybe ListMeshes
page ListMeshes
rq AWSResponse ListMeshes
rs
    | forall a. AWSTruncated a => a -> Bool
Core.stop
        ( AWSResponse ListMeshes
rs
            forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' ListMeshesResponse (Maybe Text)
listMeshesResponse_nextToken
            forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just
        ) =
        forall a. Maybe a
Prelude.Nothing
    | forall a. AWSTruncated a => a -> Bool
Core.stop (AWSResponse ListMeshes
rs forall s a. s -> Getting a s a -> a
Lens.^. Lens' ListMeshesResponse [MeshRef]
listMeshesResponse_meshes) =
        forall a. Maybe a
Prelude.Nothing
    | Bool
Prelude.otherwise =
        forall a. a -> Maybe a
Prelude.Just
          forall a b. (a -> b) -> a -> b
Prelude.$ ListMeshes
rq
          forall a b. a -> (a -> b) -> b
Prelude.& Lens' ListMeshes (Maybe Text)
listMeshes_nextToken
          forall s t a b. ASetter s t a b -> b -> s -> t
Lens..~ AWSResponse ListMeshes
rs
          forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' ListMeshesResponse (Maybe Text)
listMeshesResponse_nextToken
          forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just

instance Core.AWSRequest ListMeshes where
  type AWSResponse ListMeshes = ListMeshesResponse
  request :: (Service -> Service) -> ListMeshes -> Request ListMeshes
request Service -> Service
overrides =
    forall a. ToRequest a => Service -> a -> Request a
Request.get (Service -> Service
overrides Service
defaultService)
  response :: forall (m :: * -> *).
MonadResource m =>
(ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy ListMeshes
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse ListMeshes)))
response =
    forall (m :: * -> *) a.
MonadResource m =>
(Int -> ResponseHeaders -> Object -> Either String (AWSResponse a))
-> (ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy a
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse a)))
Response.receiveJSON
      ( \Int
s ResponseHeaders
h Object
x ->
          Maybe Text -> Int -> [MeshRef] -> ListMeshesResponse
ListMeshesResponse'
            forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"nextToken")
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (forall (f :: * -> *) a. Applicative f => a -> f a
Prelude.pure (forall a. Enum a => a -> Int
Prelude.fromEnum Int
s))
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"meshes" forall (f :: * -> *) a. Functor f => f (Maybe a) -> a -> f a
Core..!@ forall a. Monoid a => a
Prelude.mempty)
      )

instance Prelude.Hashable ListMeshes where
  hashWithSalt :: Int -> ListMeshes -> Int
hashWithSalt Int
_salt ListMeshes' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
$sel:nextToken:ListMeshes' :: ListMeshes -> Maybe Text
$sel:limit:ListMeshes' :: ListMeshes -> Maybe Natural
..} =
    Int
_salt
      forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Natural
limit
      forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
nextToken

instance Prelude.NFData ListMeshes where
  rnf :: ListMeshes -> ()
rnf ListMeshes' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
$sel:nextToken:ListMeshes' :: ListMeshes -> Maybe Text
$sel:limit:ListMeshes' :: ListMeshes -> Maybe Natural
..} =
    forall a. NFData a => a -> ()
Prelude.rnf Maybe Natural
limit
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken

instance Data.ToHeaders ListMeshes where
  toHeaders :: ListMeshes -> ResponseHeaders
toHeaders =
    forall a b. a -> b -> a
Prelude.const
      ( forall a. Monoid a => [a] -> a
Prelude.mconcat
          [ HeaderName
"Content-Type"
              forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# ( ByteString
"application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToPath ListMeshes where
  toPath :: ListMeshes -> ByteString
toPath = forall a b. a -> b -> a
Prelude.const ByteString
"/v20190125/meshes"

instance Data.ToQuery ListMeshes where
  toQuery :: ListMeshes -> QueryString
toQuery ListMeshes' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
$sel:nextToken:ListMeshes' :: ListMeshes -> Maybe Text
$sel:limit:ListMeshes' :: ListMeshes -> Maybe Natural
..} =
    forall a. Monoid a => [a] -> a
Prelude.mconcat
      [ ByteString
"limit" forall a. ToQuery a => ByteString -> a -> QueryString
Data.=: Maybe Natural
limit,
        ByteString
"nextToken" forall a. ToQuery a => ByteString -> a -> QueryString
Data.=: Maybe Text
nextToken
      ]

-- |
--
-- /See:/ 'newListMeshesResponse' smart constructor.
data ListMeshesResponse = ListMeshesResponse'
  { -- | The @nextToken@ value to include in a future @ListMeshes@ request. When
    -- the results of a @ListMeshes@ request exceed @limit@, you can use this
    -- value to retrieve the next page of results. This value is @null@ when
    -- there are no more results to return.
    ListMeshesResponse -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    ListMeshesResponse -> Int
httpStatus :: Prelude.Int,
    -- | The list of existing service meshes.
    ListMeshesResponse -> [MeshRef]
meshes :: [MeshRef]
  }
  deriving (ListMeshesResponse -> ListMeshesResponse -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ListMeshesResponse -> ListMeshesResponse -> Bool
$c/= :: ListMeshesResponse -> ListMeshesResponse -> Bool
== :: ListMeshesResponse -> ListMeshesResponse -> Bool
$c== :: ListMeshesResponse -> ListMeshesResponse -> Bool
Prelude.Eq, ReadPrec [ListMeshesResponse]
ReadPrec ListMeshesResponse
Int -> ReadS ListMeshesResponse
ReadS [ListMeshesResponse]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [ListMeshesResponse]
$creadListPrec :: ReadPrec [ListMeshesResponse]
readPrec :: ReadPrec ListMeshesResponse
$creadPrec :: ReadPrec ListMeshesResponse
readList :: ReadS [ListMeshesResponse]
$creadList :: ReadS [ListMeshesResponse]
readsPrec :: Int -> ReadS ListMeshesResponse
$creadsPrec :: Int -> ReadS ListMeshesResponse
Prelude.Read, Int -> ListMeshesResponse -> ShowS
[ListMeshesResponse] -> ShowS
ListMeshesResponse -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ListMeshesResponse] -> ShowS
$cshowList :: [ListMeshesResponse] -> ShowS
show :: ListMeshesResponse -> String
$cshow :: ListMeshesResponse -> String
showsPrec :: Int -> ListMeshesResponse -> ShowS
$cshowsPrec :: Int -> ListMeshesResponse -> ShowS
Prelude.Show, forall x. Rep ListMeshesResponse x -> ListMeshesResponse
forall x. ListMeshesResponse -> Rep ListMeshesResponse x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ListMeshesResponse x -> ListMeshesResponse
$cfrom :: forall x. ListMeshesResponse -> Rep ListMeshesResponse x
Prelude.Generic)

-- |
-- Create a value of 'ListMeshesResponse' 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:
--
-- 'nextToken', 'listMeshesResponse_nextToken' - The @nextToken@ value to include in a future @ListMeshes@ request. When
-- the results of a @ListMeshes@ request exceed @limit@, you can use this
-- value to retrieve the next page of results. This value is @null@ when
-- there are no more results to return.
--
-- 'httpStatus', 'listMeshesResponse_httpStatus' - The response's http status code.
--
-- 'meshes', 'listMeshesResponse_meshes' - The list of existing service meshes.
newListMeshesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListMeshesResponse
newListMeshesResponse :: Int -> ListMeshesResponse
newListMeshesResponse Int
pHttpStatus_ =
  ListMeshesResponse'
    { $sel:nextToken:ListMeshesResponse' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing,
      $sel:httpStatus:ListMeshesResponse' :: Int
httpStatus = Int
pHttpStatus_,
      $sel:meshes:ListMeshesResponse' :: [MeshRef]
meshes = forall a. Monoid a => a
Prelude.mempty
    }

-- | The @nextToken@ value to include in a future @ListMeshes@ request. When
-- the results of a @ListMeshes@ request exceed @limit@, you can use this
-- value to retrieve the next page of results. This value is @null@ when
-- there are no more results to return.
listMeshesResponse_nextToken :: Lens.Lens' ListMeshesResponse (Prelude.Maybe Prelude.Text)
listMeshesResponse_nextToken :: Lens' ListMeshesResponse (Maybe Text)
listMeshesResponse_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListMeshesResponse' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:ListMeshesResponse' :: ListMeshesResponse -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: ListMeshesResponse
s@ListMeshesResponse' {} Maybe Text
a -> ListMeshesResponse
s {$sel:nextToken:ListMeshesResponse' :: Maybe Text
nextToken = Maybe Text
a} :: ListMeshesResponse)

-- | The response's http status code.
listMeshesResponse_httpStatus :: Lens.Lens' ListMeshesResponse Prelude.Int
listMeshesResponse_httpStatus :: Lens' ListMeshesResponse Int
listMeshesResponse_httpStatus = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListMeshesResponse' {Int
httpStatus :: Int
$sel:httpStatus:ListMeshesResponse' :: ListMeshesResponse -> Int
httpStatus} -> Int
httpStatus) (\s :: ListMeshesResponse
s@ListMeshesResponse' {} Int
a -> ListMeshesResponse
s {$sel:httpStatus:ListMeshesResponse' :: Int
httpStatus = Int
a} :: ListMeshesResponse)

-- | The list of existing service meshes.
listMeshesResponse_meshes :: Lens.Lens' ListMeshesResponse [MeshRef]
listMeshesResponse_meshes :: Lens' ListMeshesResponse [MeshRef]
listMeshesResponse_meshes = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListMeshesResponse' {[MeshRef]
meshes :: [MeshRef]
$sel:meshes:ListMeshesResponse' :: ListMeshesResponse -> [MeshRef]
meshes} -> [MeshRef]
meshes) (\s :: ListMeshesResponse
s@ListMeshesResponse' {} [MeshRef]
a -> ListMeshesResponse
s {$sel:meshes:ListMeshesResponse' :: [MeshRef]
meshes = [MeshRef]
a} :: ListMeshesResponse) forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall s t a b. (Coercible s a, Coercible t b) => Iso s t a b
Lens.coerced

instance Prelude.NFData ListMeshesResponse where
  rnf :: ListMeshesResponse -> ()
rnf ListMeshesResponse' {Int
[MeshRef]
Maybe Text
meshes :: [MeshRef]
httpStatus :: Int
nextToken :: Maybe Text
$sel:meshes:ListMeshesResponse' :: ListMeshesResponse -> [MeshRef]
$sel:httpStatus:ListMeshesResponse' :: ListMeshesResponse -> Int
$sel:nextToken:ListMeshesResponse' :: ListMeshesResponse -> Maybe Text
..} =
    forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Int
httpStatus
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf [MeshRef]
meshes