Servant.Server.Internal.ServerError

Documentation

data ServerError

Constructors

ServerError

Fields

• errHTTPCode :: Int
• errReasonPhrase :: String
• errBody :: ByteString
• errHeaders :: [Header]

Instances

Eq ServerError

Defined in Servant.Server.Internal.ServerError

Methods

(==) :: ServerError -> ServerError -> Bool

(/=) :: ServerError -> ServerError -> Bool

Read ServerError

Defined in Servant.Server.Internal.ServerError

Methods

readsPrec :: Int -> ReadS ServerError

readList :: ReadS [ServerError]

readPrec :: ReadPrec ServerError

readListPrec :: ReadPrec [ServerError]

Show ServerError

Defined in Servant.Server.Internal.ServerError

Methods

showsPrec :: Int -> ServerError -> ShowS

show :: ServerError -> String

showList :: [ServerError] -> ShowS

Exception ServerError

Defined in Servant.Server.Internal.ServerError

Methods

toException :: ServerError -> SomeException

fromException :: SomeException -> Maybe ServerError

displayException :: ServerError -> String

MonadError ServerError Handler

Defined in Servant.Server.Internal.Handler

Methods

throwError :: ServerError -> Handler a

catchError :: Handler a -> (ServerError -> Handler a) -> Handler a

responseServerError :: ServerError -> Response

err300 :: ServerError

err300 Multiple Choices

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err300 { errBody = "I can't choose." }

err301 :: ServerError

err301 Moved Permanently

Example:

failingHandler :: Handler ()
failingHandler = throwError err301

err302 :: ServerError

err302 Found

Example:

failingHandler :: Handler ()
failingHandler = throwError err302

err303 :: ServerError

err303 See Other

Example:

failingHandler :: Handler ()
failingHandler = throwError err303

err304 :: ServerError

err304 Not Modified

Example:

failingHandler :: Handler ()
failingHandler = throwError err304

err305 :: ServerError

err305 Use Proxy

Example:

failingHandler :: Handler ()
failingHandler = throwError err305

err307 :: ServerError

err307 Temporary Redirect

Example:

failingHandler :: Handler ()
failingHandler = throwError err307

err400 :: ServerError

err400 Bad Request

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err400 { errBody = "Your request makes no sense to me." }

err401 :: ServerError

err401 Unauthorized

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err401 { errBody = "Your credentials are invalid." }

err402 :: ServerError

err402 Payment Required

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err402 { errBody = "You have 0 credits. Please give me $$$." }

err403 :: ServerError

err403 Forbidden

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err403 { errBody = "Please login first." }

err404 :: ServerError

err404 Not Found

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err404 { errBody = "Are you lost?" }

err405 :: ServerError

err405 Method Not Allowed

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err405 { errBody = "Your account privileges does not allow for this.  Please pay $$$." }

err406 :: ServerError

err406 Not Acceptable

Example:

failingHandler :: Handler ()
failingHandler = throwError err406

err407 :: ServerError

err407 Proxy Authentication Required

Example:

failingHandler :: Handler ()
failingHandler = throwError err407

err409 :: ServerError

err409 Conflict

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err409 { errBody = "Transaction conflicts with 59879cb56c7c159231eeacdd503d755f7e835f74" }

err410 :: ServerError

err410 Gone

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err410 { errBody = "I know it was here at some point, but.. I blame bad luck." }

err411 :: ServerError

err411 Length Required

Example:

failingHandler :: Handler ()
failingHandler = throwError err411

err412 :: ServerError

err412 Precondition Failed

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err412 { errBody = "Precondition fail: x < 42 && y > 57" }

err413 :: ServerError

err413 Request Entity Too Large

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err413 { errBody = "Request exceeded 64k." }

err414 :: ServerError

err414 Request-URI Too Large

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err414 { errBody = "Maximum length is 64." }

err415 :: ServerError

err415 Unsupported Media Type

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err415 { errBody = "Supported media types:  gif, png" }

err416 :: ServerError

err416 Request range not satisfiable

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err416 { errBody = "Valid range is [0, 424242]." }

err417 :: ServerError

err417 Expectation Failed

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err417 { errBody = "I found a quux in the request.  This isn't going to work." }

err418 :: ServerError

err418 Expectation Failed

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err418 { errBody = "Apologies, this is not a webserver but a teapot." }

err422 :: ServerError

err422 Unprocessable Entity

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err422 { errBody = "I understood your request, but can't process it." }

err500 :: ServerError

err500 Internal Server Error

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err500 { errBody = "Exception in module A.B.C:55.  Have a great day!" }

err501 :: ServerError

err501 Not Implemented

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err501 { errBody = "/v1/foo is not supported with quux in the request." }

err502 :: ServerError

err502 Bad Gateway

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err502 { errBody = "Tried gateway foo, bar, and baz.  None responded." }

err503 :: ServerError

err503 Service Unavailable

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err503 { errBody = "We're rewriting in PHP." }

err504 :: ServerError

err504 Gateway Time-out

Example:

failingHandler :: Handler ()
failingHandler = throwError $ err504 { errBody = "Backend foobar did not respond in 5 seconds." }

err505 :: ServerError

err505 HTTP Version not supported

Example usage:

failingHandler :: Handler ()
failingHandler = throwError $ err505 { errBody = "I support HTTP/4.0 only." }