Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
This module provides backend-agnostic functionality for generating clients
from servant
APIs. By "backend," we mean something that concretely
executes the request, such as:
- The
http-client
library - The
haxl
library - GHCJS via FFI
etc.
Each backend is encapsulated in a monad that is an instance of the
RunClient
class.
This library is primarily of interest to backend-writers and combinator-writers. For more information, see the README.md
Synopsis
- clientIn :: HasClient m api => Proxy api -> Proxy m -> Client m api
- class RunClient m => HasClient m api where
- foldMapUnion :: forall c a (as :: [Type]). All c as => Proxy c -> (forall x. c x => x -> a) -> Union as -> a
- matchUnion :: forall a (as :: [Type]). IsMember a as => Union as -> Maybe a
- type Request = RequestF RequestBody Builder
- data RequestF body path = Request {
- requestPath :: path
- requestQueryString :: Seq QueryItem
- requestBody :: Maybe (body, MediaType)
- requestAccept :: Seq MediaType
- requestHeaders :: Seq Header
- requestHttpVersion :: HttpVersion
- requestMethod :: Method
- defaultRequest :: Request
- data RequestBody
- mkAuthenticatedRequest :: AuthClientData a -> (AuthClientData a -> Request -> Request) -> AuthenticatedRequest a
- basicAuthReq :: BasicAuthData -> Request -> Request
- newtype AuthenticatedRequest a = AuthenticatedRequest {
- unAuthReq :: (AuthClientData a, AuthClientData a -> Request -> Request)
- type family AuthClientData a :: *
- data ClientError
- data EmptyClient = EmptyClient
- type Response = ResponseF ByteString
- data ResponseF a = Response {}
- class Monad m => RunClient m where
- runRequestAcceptStatus :: Maybe [Status] -> Request -> m Response
- throwClientError :: ClientError -> m a
- data BaseUrl = BaseUrl {}
- data Scheme
- showBaseUrl :: BaseUrl -> String
- parseBaseUrl :: MonadThrow m => String -> m BaseUrl
- newtype InvalidBaseUrlException = InvalidBaseUrlException String
- class RunClient m => RunStreamingClient m where
- withStreamingRequest :: Request -> (StreamingResponse -> IO a) -> m a
- type StreamingResponse = ResponseF (SourceIO ByteString)
- addHeader :: ToHttpApiData a => HeaderName -> a -> Request -> Request
- appendToQueryString :: Text -> Maybe ByteString -> Request -> Request
- appendToPath :: Builder -> Request -> Request
- setRequestBodyLBS :: ByteString -> MediaType -> Request -> Request
- setRequestBody :: RequestBody -> MediaType -> Request -> Request
- encodeQueryParamValue :: ToHttpApiData a => a -> ByteString
Client generation
clientIn :: HasClient m api => Proxy api -> Proxy m -> Client m api Source #
clientIn
allows you to produce operations to query an API from a client
within a RunClient
monad.
type MyApi = "books" :> Get '[JSON] [Book] -- GET /books :<|> "books" :> ReqBody '[JSON] Book :> Post '[JSON] Book -- POST /books myApi :: Proxy MyApi myApi = Proxy clientM :: Proxy ClientM clientM = Proxy getAllBooks :: ClientM [Book] postNewBook :: Book -> ClientM Book (getAllBooks :<|> postNewBook) = myApi `clientIn` clientM
class RunClient m => HasClient m api where Source #
This class lets us define how each API combinator influences the creation of an HTTP request.
Unless you are writing a new backend for servant-client-core
or new
combinators that you want to support client-generation, you can ignore this
class.
clientWithRoute :: Proxy m -> Proxy api -> Request -> Client m api Source #
hoistClientMonad :: Proxy m -> Proxy api -> (forall x. mon x -> mon' x) -> Client mon api -> Client mon' api Source #
Instances
RunClient m => HasClient m EmptyAPI Source # | The client for type MyAPI = "books" :> Get '[JSON] [Book] -- GET /books :<|> "nothing" :> EmptyAPI myApi :: Proxy MyApi myApi = Proxy getAllBooks :: ClientM [Book] (getAllBooks :<|> EmptyClient) = client myApi |
RunClient m => HasClient m Raw Source # | Pick a |
RunClient m => HasClient m RawM Source # | |
(RunClient m, TypeError (NoInstanceFor (HasClient m api)) :: Constraint) => HasClient m api Source # | |
(forall (n :: Type -> Type). GClient api n, HasClient m (ToServantApi api), RunClient m, ErrorIfNoGeneric api) => HasClient m (NamedRoutes api) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (NamedRoutes api) Source # clientWithRoute :: Proxy m -> Proxy (NamedRoutes api) -> Request -> Client m (NamedRoutes api) Source # hoistClientMonad :: Proxy m -> Proxy (NamedRoutes api) -> (forall x. mon x -> mon' x) -> Client mon (NamedRoutes api) -> Client mon' (NamedRoutes api) Source # | |
(HasClient m a, HasClient m b) => HasClient m (a :<|> b) Source # | A client querying function for type MyApi = "books" :> Get '[JSON] [Book] -- GET /books :<|> "books" :> ReqBody '[JSON] Book :> Post Book -- POST /books myApi :: Proxy MyApi myApi = Proxy getAllBooks :: ClientM [Book] postNewBook :: Book -> ClientM Book (getAllBooks :<|> postNewBook) = client myApi |
Defined in Servant.Client.Core.HasClient | |
(RunClient m, ReflectMethod method) => HasClient m (NoContentVerb method) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (NoContentVerb method) Source # clientWithRoute :: Proxy m -> Proxy (NoContentVerb method) -> Request -> Client m (NoContentVerb method) Source # hoistClientMonad :: Proxy m -> Proxy (NoContentVerb method) -> (forall x. mon x -> mon' x) -> Client mon (NoContentVerb method) -> Client mon' (NoContentVerb method) Source # | |
(RunClient m, TypeError (PartialApplication HasClient arr) :: Constraint) => HasClient m (arr :> sub) Source # | |
Defined in Servant.Client.Core.HasClient | |
HasClient m api => HasClient m (Vault :> api) Source # | |
Defined in Servant.Client.Core.HasClient | |
(KnownSymbol path, HasClient m api) => HasClient m (path :> api) Source # | Make the querying function append |
Defined in Servant.Client.Core.HasClient | |
HasClient m api => HasClient m (HttpVersion :> api) Source # | Using a |
Defined in Servant.Client.Core.HasClient type Client m (HttpVersion :> api) Source # clientWithRoute :: Proxy m -> Proxy (HttpVersion :> api) -> Request -> Client m (HttpVersion :> api) Source # hoistClientMonad :: Proxy m -> Proxy (HttpVersion :> api) -> (forall x. mon x -> mon' x) -> Client mon (HttpVersion :> api) -> Client mon' (HttpVersion :> api) Source # | |
HasClient m api => HasClient m (BasicAuth realm usr :> api) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (BasicAuth realm usr :> api) -> Request -> Client m (BasicAuth realm usr :> api) Source # hoistClientMonad :: Proxy m -> Proxy (BasicAuth realm usr :> api) -> (forall x. mon x -> mon' x) -> Client mon (BasicAuth realm usr :> api) -> Client mon' (BasicAuth realm usr :> api) Source # | |
(KnownSymbol capture, ToHttpApiData a, HasClient m api) => HasClient m (Capture' mods capture a :> api) Source # | If you use a You can control how values for this type are turned into
text by specifying a Example: type MyApi = "books" :> Capture "isbn" Text :> Get '[JSON] Book myApi :: Proxy MyApi myApi = Proxy getBook :: Text -> ClientM Book getBook = client myApi -- then you can just use "getBook" to query that endpoint |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Capture' mods capture a :> api) -> Request -> Client m (Capture' mods capture a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (Capture' mods capture a :> api) -> (forall x. mon x -> mon' x) -> Client mon (Capture' mods capture a :> api) -> Client mon' (Capture' mods capture a :> api) Source # | |
(KnownSymbol capture, ToHttpApiData a, HasClient m sublayout) => HasClient m (CaptureAll capture a :> sublayout) Source # | If you use a You can control how these values are turned into text by specifying
a Example: type MyAPI = "src" :> CaptureAll Text -> Get '[JSON] SourceFile myApi :: Proxy myApi = Proxy getSourceFile :: [Text] -> ClientM SourceFile getSourceFile = client myApi -- then you can use "getSourceFile" to query that endpoint |
Defined in Servant.Client.Core.HasClient type Client m (CaptureAll capture a :> sublayout) Source # clientWithRoute :: Proxy m -> Proxy (CaptureAll capture a :> sublayout) -> Request -> Client m (CaptureAll capture a :> sublayout) Source # hoistClientMonad :: Proxy m -> Proxy (CaptureAll capture a :> sublayout) -> (forall x. mon x -> mon' x) -> Client mon (CaptureAll capture a :> sublayout) -> Client mon' (CaptureAll capture a :> sublayout) Source # | |
HasClient m api => HasClient m (Description desc :> api) Source # | Ignore |
Defined in Servant.Client.Core.HasClient type Client m (Description desc :> api) Source # clientWithRoute :: Proxy m -> Proxy (Description desc :> api) -> Request -> Client m (Description desc :> api) Source # hoistClientMonad :: Proxy m -> Proxy (Description desc :> api) -> (forall x. mon x -> mon' x) -> Client mon (Description desc :> api) -> Client mon' (Description desc :> api) Source # | |
HasClient m api => HasClient m (Summary desc :> api) Source # | Ignore |
Defined in Servant.Client.Core.HasClient | |
HasClient m api => HasClient m (AuthProtect tag :> api) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (AuthProtect tag :> api) Source # clientWithRoute :: Proxy m -> Proxy (AuthProtect tag :> api) -> Request -> Client m (AuthProtect tag :> api) Source # hoistClientMonad :: Proxy m -> Proxy (AuthProtect tag :> api) -> (forall x. mon x -> mon' x) -> Client mon (AuthProtect tag :> api) -> Client mon' (AuthProtect tag :> api) Source # | |
(AtLeastOneFragment api, FragmentUnique (Fragment a :> api), HasClient m api) => HasClient m (Fragment a :> api) Source # | Ignore Example: type MyApi = "books" :> Fragment Text :> Get '[JSON] [Book] myApi :: Proxy MyApi myApi = Proxy getBooks :: ClientM [Book] getBooks = client myApi -- then you can just use "getBooksBy" to query that endpoint. -- 'getBooks' for all books. |
Defined in Servant.Client.Core.HasClient | |
(KnownSymbol sym, ToHttpApiData a, HasClient m api, SBoolI (FoldRequired mods)) => HasClient m (Header' mods sym a :> api) Source # | If you use a That function will take care of encoding this argument as Text in the request headers. All you need is for your type to have a Example: newtype Referer = Referer { referrer :: Text } deriving (Eq, Show, Generic, ToHttpApiData) -- GET /view-my-referer type MyApi = "view-my-referer" :> Header "Referer" Referer :> Get '[JSON] Referer myApi :: Proxy MyApi myApi = Proxy viewReferer :: Maybe Referer -> ClientM Book viewReferer = client myApi -- then you can just use "viewRefer" to query that endpoint -- specifying Nothing or e.g Just "http://haskell.org/" as arguments |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Header' mods sym a :> api) -> Request -> Client m (Header' mods sym a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (Header' mods sym a :> api) -> (forall x. mon x -> mon' x) -> Client mon (Header' mods sym a :> api) -> Client mon' (Header' mods sym a :> api) Source # | |
HasClient m api => HasClient m (IsSecure :> api) Source # | |
Defined in Servant.Client.Core.HasClient | |
(KnownSymbol sym, HasClient m api) => HasClient m (QueryFlag sym :> api) Source # | If you use a If you give Otherwise, this function will insert a value-less query string
parameter under the name associated to your Example: type MyApi = "books" :> QueryFlag "published" :> Get '[JSON] [Book] myApi :: Proxy MyApi myApi = Proxy getBooks :: Bool -> ClientM [Book] getBooks = client myApi -- then you can just use "getBooks" to query that endpoint. -- 'getBooksBy False' for all books -- 'getBooksBy True' to only get _already published_ books |
Defined in Servant.Client.Core.HasClient | |
(KnownSymbol sym, ToHttpApiData a, HasClient m api, SBoolI (FoldRequired mods)) => HasClient m (QueryParam' mods sym a :> api) Source # | If you use a If you give Nothing, nothing will be added to the query string. If you give a non- You can control how values for your type are turned into
text by specifying a Example: type MyApi = "books" :> QueryParam "author" Text :> Get '[JSON] [Book] myApi :: Proxy MyApi myApi = Proxy getBooksBy :: Maybe Text -> ClientM [Book] getBooksBy = client myApi -- then you can just use "getBooksBy" to query that endpoint. -- 'getBooksBy Nothing' for all books -- 'getBooksBy (Just "Isaac Asimov")' to get all books by Isaac Asimov |
Defined in Servant.Client.Core.HasClient type Client m (QueryParam' mods sym a :> api) Source # clientWithRoute :: Proxy m -> Proxy (QueryParam' mods sym a :> api) -> Request -> Client m (QueryParam' mods sym a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (QueryParam' mods sym a :> api) -> (forall x. mon x -> mon' x) -> Client mon (QueryParam' mods sym a :> api) -> Client mon' (QueryParam' mods sym a :> api) Source # | |
(KnownSymbol sym, ToHttpApiData a, HasClient m api) => HasClient m (QueryParams sym a :> api) Source # | If you use a If you give an empty list, nothing will be added to the query string. Otherwise, this function will take care of inserting a textual representation of your values in the query string, under the same query string parameter name. You can control how values for your type are turned into
text by specifying a Example: type MyApi = "books" :> QueryParams "authors" Text :> Get '[JSON] [Book] myApi :: Proxy MyApi myApi = Proxy getBooksBy :: [Text] -> ClientM [Book] getBooksBy = client myApi -- then you can just use "getBooksBy" to query that endpoint. -- 'getBooksBy []' for all books -- 'getBooksBy ["Isaac Asimov", "Robert A. Heinlein"]' -- to get all books by Asimov and Heinlein |
Defined in Servant.Client.Core.HasClient type Client m (QueryParams sym a :> api) Source # clientWithRoute :: Proxy m -> Proxy (QueryParams sym a :> api) -> Request -> Client m (QueryParams sym a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (QueryParams sym a :> api) -> (forall x. mon x -> mon' x) -> Client mon (QueryParams sym a :> api) -> Client mon' (QueryParams sym a :> api) Source # | |
HasClient m api => HasClient m (RemoteHost :> api) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (RemoteHost :> api) Source # clientWithRoute :: Proxy m -> Proxy (RemoteHost :> api) -> Request -> Client m (RemoteHost :> api) Source # hoistClientMonad :: Proxy m -> Proxy (RemoteHost :> api) -> (forall x. mon x -> mon' x) -> Client mon (RemoteHost :> api) -> Client mon' (RemoteHost :> api) Source # | |
(MimeRender ct a, HasClient m api) => HasClient m (ReqBody' mods (ct ': cts) a :> api) Source # | If you use a All you need is for your type to have a Example: type MyApi = "books" :> ReqBody '[JSON] Book :> Post '[JSON] Book myApi :: Proxy MyApi myApi = Proxy addBook :: Book -> ClientM Book addBook = client myApi -- then you can just use "addBook" to query that endpoint |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (ReqBody' mods (ct ': cts) a :> api) -> Request -> Client m (ReqBody' mods (ct ': cts) a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (ReqBody' mods (ct ': cts) a :> api) -> (forall x. mon x -> mon' x) -> Client mon (ReqBody' mods (ct ': cts) a :> api) -> Client mon' (ReqBody' mods (ct ': cts) a :> api) Source # | |
(HasClient m api, MimeRender ctype chunk, FramingRender framing, ToSourceIO chunk a) => HasClient m (StreamBody' mods framing ctype a :> api) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (StreamBody' mods framing ctype a :> api) Source # clientWithRoute :: Proxy m -> Proxy (StreamBody' mods framing ctype a :> api) -> Request -> Client m (StreamBody' mods framing ctype a :> api) Source # hoistClientMonad :: Proxy m -> Proxy (StreamBody' mods framing ctype a :> api) -> (forall x. mon x -> mon' x) -> Client mon (StreamBody' mods framing ctype a :> api) -> Client mon' (StreamBody' mods framing ctype a :> api) Source # | |
HasClient m subapi => HasClient m (WithResource res :> subapi) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (WithResource res :> subapi) Source # clientWithRoute :: Proxy m -> Proxy (WithResource res :> subapi) -> Request -> Client m (WithResource res :> subapi) Source # hoistClientMonad :: Proxy m -> Proxy (WithResource res :> subapi) -> (forall x. mon x -> mon' x) -> Client mon (WithResource res :> subapi) -> Client mon' (WithResource res :> subapi) Source # | |
(RunClient m, TypeError (NoInstanceForSub (HasClient m) ty) :: Constraint) => HasClient m (ty :> sub) Source # | |
Defined in Servant.Client.Core.HasClient | |
(RunClient m, contentTypes ~ (contentType ': otherContentTypes), as ~ (a ': as'), AllMime contentTypes, ReflectMethod method, All (UnrenderResponse contentTypes) as, All HasStatus as, HasStatuses as', Unique (Statuses as)) => HasClient m (UVerb method contentTypes as) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (UVerb method contentTypes as) -> Request -> Client m (UVerb method contentTypes as) Source # hoistClientMonad :: Proxy m -> Proxy (UVerb method contentTypes as) -> (forall x. mon x -> mon' x) -> Client mon (UVerb method contentTypes as) -> Client mon' (UVerb method contentTypes as) Source # | |
HasClient m subapi => HasClient m (WithNamedContext name context subapi) Source # | |
Defined in Servant.Client.Core.HasClient type Client m (WithNamedContext name context subapi) Source # clientWithRoute :: Proxy m -> Proxy (WithNamedContext name context subapi) -> Request -> Client m (WithNamedContext name context subapi) Source # hoistClientMonad :: Proxy m -> Proxy (WithNamedContext name context subapi) -> (forall x. mon x -> mon' x) -> Client mon (WithNamedContext name context subapi) -> Client mon' (WithNamedContext name context subapi) Source # | |
(RunClient m, ReflectMethod method, KnownNat status) => HasClient m (Verb method status cts NoContent) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Verb method status cts NoContent) -> Request -> Client m (Verb method status cts NoContent) Source # hoistClientMonad :: Proxy m -> Proxy (Verb method status cts NoContent) -> (forall x. mon x -> mon' x) -> Client mon (Verb method status cts NoContent) -> Client mon' (Verb method status cts NoContent) Source # | |
(RunClient m, BuildHeadersTo ls, ReflectMethod method, KnownNat status) => HasClient m (Verb method status cts (Headers ls NoContent)) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Verb method status cts (Headers ls NoContent)) -> Request -> Client m (Verb method status cts (Headers ls NoContent)) Source # hoistClientMonad :: Proxy m -> Proxy (Verb method status cts (Headers ls NoContent)) -> (forall x. mon x -> mon' x) -> Client mon (Verb method status cts (Headers ls NoContent)) -> Client mon' (Verb method status cts (Headers ls NoContent)) Source # | |
(RunClient m, MimeUnrender ct a, BuildHeadersTo ls, KnownNat status, ReflectMethod method, cts' ~ (ct ': cts)) => HasClient m (Verb method status cts' (Headers ls a)) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Verb method status cts' (Headers ls a)) -> Request -> Client m (Verb method status cts' (Headers ls a)) Source # hoistClientMonad :: Proxy m -> Proxy (Verb method status cts' (Headers ls a)) -> (forall x. mon x -> mon' x) -> Client mon (Verb method status cts' (Headers ls a)) -> Client mon' (Verb method status cts' (Headers ls a)) Source # | |
(RunClient m, MimeUnrender ct a, ReflectMethod method, cts' ~ (ct ': cts), KnownNat status) => HasClient m (Verb method status cts' a) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Verb method status cts' a) -> Request -> Client m (Verb method status cts' a) Source # hoistClientMonad :: Proxy m -> Proxy (Verb method status cts' a) -> (forall x. mon x -> mon' x) -> Client mon (Verb method status cts' a) -> Client mon' (Verb method status cts' a) Source # | |
(RunStreamingClient m, MimeUnrender ct chunk, ReflectMethod method, FramingUnrender framing, FromSourceIO chunk a, BuildHeadersTo hs) => HasClient m (Stream method status framing ct (Headers hs a)) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Stream method status framing ct (Headers hs a)) -> Request -> Client m (Stream method status framing ct (Headers hs a)) Source # hoistClientMonad :: Proxy m -> Proxy (Stream method status framing ct (Headers hs a)) -> (forall x. mon x -> mon' x) -> Client mon (Stream method status framing ct (Headers hs a)) -> Client mon' (Stream method status framing ct (Headers hs a)) Source # | |
(RunStreamingClient m, MimeUnrender ct chunk, ReflectMethod method, FramingUnrender framing, FromSourceIO chunk a) => HasClient m (Stream method status framing ct a) Source # | |
Defined in Servant.Client.Core.HasClient clientWithRoute :: Proxy m -> Proxy (Stream method status framing ct a) -> Request -> Client m (Stream method status framing ct a) Source # hoistClientMonad :: Proxy m -> Proxy (Stream method status framing ct a) -> (forall x. mon x -> mon' x) -> Client mon (Stream method status framing ct a) -> Client mon' (Stream method status framing ct a) Source # |
foldMapUnion :: forall c a (as :: [Type]). All c as => Proxy c -> (forall x. c x => x -> a) -> Union as -> a #
Convenience function to apply a function to an unknown union element using a type class. All elements of the union must have instances in the type class, and the function is applied unconditionally.
See also: matchUnion
.
matchUnion :: forall a (as :: [Type]). IsMember a as => Union as -> Maybe a #
Convenience function to extract a union element using cast
, ie. return the value if the
selected type happens to be the actual type of the union in this value, or Nothing
otherwise.
See also: foldMapUnion
.
Request
data RequestF body path Source #
Request | |
|
Instances
data RequestBody Source #
The request body. R replica of the http-client
RequestBody
.
Instances
Authentication
mkAuthenticatedRequest :: AuthClientData a -> (AuthClientData a -> Request -> Request) -> AuthenticatedRequest a Source #
Handy helper to avoid wrapping datatypes in tuples everywhere.
NOTE: THIS API IS EXPERIMENTAL AND SUBJECT TO CHANGE
basicAuthReq :: BasicAuthData -> Request -> Request Source #
Authenticate a request using Basic Authentication
newtype AuthenticatedRequest a Source #
For better type inference and to avoid usage of a data family, we newtype
wrap the combination of some AuthClientData
and a function to add authentication
data to a request
NOTE: THIS API IS EXPERIMENTAL AND SUBJECT TO CHANGE
AuthenticatedRequest | |
|
type family AuthClientData a :: * Source #
For a resource protected by authentication (e.g. AuthProtect), we need to provide the client with some data used to add authentication data to a request
NOTE: THIS API IS EXPERIMENTAL AND SUBJECT TO CHANGE
Generic Client
data ClientError Source #
A type representing possible errors in a request
Note that this type substantially changed in 0.12.
FailureResponse (RequestF () (BaseUrl, ByteString)) Response | The server returned an error response including the
failing request. |
DecodeFailure Text Response | The body could not be decoded at the expected type |
UnsupportedContentType MediaType Response | The content-type of the response is not supported |
InvalidContentTypeHeader Response | The content-type header is invalid |
ConnectionError SomeException | There was a connection error, and no response was received |
Instances
data EmptyClient Source #
Singleton type representing a client for an empty API.
Instances
Bounded EmptyClient Source # | |
Defined in Servant.Client.Core.HasClient minBound :: EmptyClient # maxBound :: EmptyClient # | |
Enum EmptyClient Source # | |
Defined in Servant.Client.Core.HasClient succ :: EmptyClient -> EmptyClient # pred :: EmptyClient -> EmptyClient # toEnum :: Int -> EmptyClient # fromEnum :: EmptyClient -> Int # enumFrom :: EmptyClient -> [EmptyClient] # enumFromThen :: EmptyClient -> EmptyClient -> [EmptyClient] # enumFromTo :: EmptyClient -> EmptyClient -> [EmptyClient] # enumFromThenTo :: EmptyClient -> EmptyClient -> EmptyClient -> [EmptyClient] # | |
Show EmptyClient Source # | |
Defined in Servant.Client.Core.HasClient showsPrec :: Int -> EmptyClient -> ShowS # show :: EmptyClient -> String # showList :: [EmptyClient] -> ShowS # | |
Eq EmptyClient Source # | |
Defined in Servant.Client.Core.HasClient (==) :: EmptyClient -> EmptyClient -> Bool # (/=) :: EmptyClient -> EmptyClient -> Bool # |
Response
type Response = ResponseF ByteString Source #
Instances
class Monad m => RunClient m where Source #
runRequestAcceptStatus :: Maybe [Status] -> Request -> m Response Source #
How to make a request, with an optional list of status codes to not throw exceptions for (default: [200..299]).
throwClientError :: ClientError -> m a Source #
Instances
ClientF ~ f => RunClient (Free f) Source # | |
Defined in Servant.Client.Core.RunClient runRequestAcceptStatus :: Maybe [Status] -> Request -> Free f Response Source # throwClientError :: ClientError -> Free f a Source # |
BaseUrl
Simple data type to represent the target of HTTP requests for servant's automatically-generated clients.
BaseUrl | |
|
Instances
FromJSON BaseUrl Source # |
|
FromJSONKey BaseUrl Source # | |
ToJSON BaseUrl Source # |
|
Defined in Servant.Client.Core.BaseUrl | |
ToJSONKey BaseUrl Source # |
|
Defined in Servant.Client.Core.BaseUrl | |
Data BaseUrl Source # | |
Defined in Servant.Client.Core.BaseUrl gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> BaseUrl -> c BaseUrl # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c BaseUrl # toConstr :: BaseUrl -> Constr # dataTypeOf :: BaseUrl -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c BaseUrl) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c BaseUrl) # gmapT :: (forall b. Data b => b -> b) -> BaseUrl -> BaseUrl # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> BaseUrl -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> BaseUrl -> r # gmapQ :: (forall d. Data d => d -> u) -> BaseUrl -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> BaseUrl -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> BaseUrl -> m BaseUrl # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> BaseUrl -> m BaseUrl # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> BaseUrl -> m BaseUrl # | |
Generic BaseUrl Source # | |
Show BaseUrl Source # | |
NFData BaseUrl Source # | |
Defined in Servant.Client.Core.BaseUrl | |
Eq BaseUrl Source # | |
Ord BaseUrl Source # | |
Defined in Servant.Client.Core.BaseUrl | |
Lift BaseUrl Source # | |
type Rep BaseUrl Source # | |
Defined in Servant.Client.Core.BaseUrl type Rep BaseUrl = D1 ('MetaData "BaseUrl" "Servant.Client.Core.BaseUrl" "servant-client-core-0.20-31rZir3E6qhBpePsaoJOZp" 'False) (C1 ('MetaCons "BaseUrl" 'PrefixI 'True) ((S1 ('MetaSel ('Just "baseUrlScheme") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Scheme) :*: S1 ('MetaSel ('Just "baseUrlHost") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)) :*: (S1 ('MetaSel ('Just "baseUrlPort") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int) :*: S1 ('MetaSel ('Just "baseUrlPath") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)))) |
URI scheme to use
Instances
Data Scheme Source # | |
Defined in Servant.Client.Core.BaseUrl gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Scheme -> c Scheme # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Scheme # toConstr :: Scheme -> Constr # dataTypeOf :: Scheme -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Scheme) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Scheme) # gmapT :: (forall b. Data b => b -> b) -> Scheme -> Scheme # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Scheme -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Scheme -> r # gmapQ :: (forall d. Data d => d -> u) -> Scheme -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Scheme -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Scheme -> m Scheme # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Scheme -> m Scheme # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Scheme -> m Scheme # | |
Generic Scheme Source # | |
Show Scheme Source # | |
Eq Scheme Source # | |
Ord Scheme Source # | |
Lift Scheme Source # | |
type Rep Scheme Source # | |
showBaseUrl :: BaseUrl -> String Source #
>>>
showBaseUrl <$> parseBaseUrl "api.example.com"
"http://api.example.com"
parseBaseUrl :: MonadThrow m => String -> m BaseUrl Source #
>>>
parseBaseUrl "api.example.com"
BaseUrl {baseUrlScheme = Http, baseUrlHost = "api.example.com", baseUrlPort = 80, baseUrlPath = ""}
Note: trailing slash is removed
>>>
parseBaseUrl "api.example.com/"
BaseUrl {baseUrlScheme = Http, baseUrlHost = "api.example.com", baseUrlPort = 80, baseUrlPath = ""}
>>>
parseBaseUrl "api.example.com/dir/"
BaseUrl {baseUrlScheme = Http, baseUrlHost = "api.example.com", baseUrlPort = 80, baseUrlPath = "/dir"}
newtype InvalidBaseUrlException Source #
Instances
Exception InvalidBaseUrlException Source # | |
Show InvalidBaseUrlException Source # | |
Defined in Servant.Client.Core.BaseUrl showsPrec :: Int -> InvalidBaseUrlException -> ShowS # show :: InvalidBaseUrlException -> String # showList :: [InvalidBaseUrlException] -> ShowS # |
Streaming
class RunClient m => RunStreamingClient m where Source #
withStreamingRequest :: Request -> (StreamingResponse -> IO a) -> m a Source #
type StreamingResponse = ResponseF (SourceIO ByteString) Source #
Writing HasClient instances
These functions need not be re-exported by backend libraries.
addHeader :: ToHttpApiData a => HeaderName -> a -> Request -> Request Source #
Add header to the request being constructed.
:: Text | query param name |
-> Maybe ByteString | query param value |
-> Request | |
-> Request |
Append a query parameter to the request being constructed.
appendToPath :: Builder -> Request -> Request Source #
Append extra path to the request being constructed.
Warning: This function assumes that the path fragment is already URL-encoded.
setRequestBodyLBS :: ByteString -> MediaType -> Request -> Request Source #
Set body and media type of the request being constructed.
The body is set to the given bytestring using the RequestBodyLBS
constructor.
Since: 0.12
setRequestBody :: RequestBody -> MediaType -> Request -> Request Source #
Set body and media type of the request being constructed.
Since: 0.12
encodeQueryParamValue :: ToHttpApiData a => a -> ByteString Source #
Encode a query parameter value.