Contents Index

Framework.Exceptions

Contents Functions that are specific to application-level controllers

Synopsis

raiseC :: Int -> String -> AController a raiseIO :: StaticConfig -> HttpRequest -> Int -> String -> IO HttpResponse internalError :: String -> AController a errorIf :: Int -> String -> Bool -> Controller s HttpResponse () methodOnly :: RequestMethod -> AController a -> AController a ifMethod :: RequestMethod -> a -> AController a -> AController a forceMaybe :: String -> Maybe a -> AController a

Documentation

raiseC

:: => Int HTTP error code -> String Message -> AController a Raise an exception in controller

raiseIO

:: StaticConfig Static (global) config -> HttpRequest -> Int HTTP error code -> String Message -> IO HttpResponse Raise an exception in IO monad

Functions that are specific to application-level controllers

internalError :: String -> AController a

Return HTTP 500 error with given message

errorIf

:: => Int HTTP status code -> String Error message -> Bool Value of condition -> Controller s HttpResponse () Return HTTP error with given code, if condition is satisfied

methodOnly :: RequestMethod -> AController a -> AController a

Run controller only if request method is as given, else raise HTTP 400 error

ifMethod

:: => RequestMethod -> a Default value -> AController a Run this -> AController a Run a controller only if given HTTP method, otherwise return default value

forceMaybe

:: => String Error message -> Maybe a Maybe value -> AController a If value is supplied, return it. Otherwise, raise HTTP 500 error.

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