Network.Mattermost.Util

Documentation

assertE :: Exception e => Bool -> e -> IO ()

This asserts that the provided Bool is True, throwing a provided exception is the argument was False.

noteE :: Exception e => Maybe r -> e -> IO r

This unwraps a Maybe value, throwing a provided exception if the value is Nothing.

hoistE :: Exception e => Either e r -> IO r

This unwraps an Either value, throwing the contained exception if the Either was a Left value.

(~=) :: String -> String -> Bool

Case Insensitive string comparison

dropTrailingChar :: ByteString -> ByteString

HTTP ends newlines with rn sequence, but the connection package doesn't know this so we need to drop the r after reading lines. This should only be needed in your compatibility with the HTTP library.

withConnection :: ConnectionData -> (Connection -> IO a) -> IO a

Creates a new connection to Hostname from an already initialized ConnectionContext. Internally it uses bracket to cleanup the connection.

mkConnection :: ConnectionData -> IO Connection

Creates a connection from a ConnectionData value, returning it. It is the user's responsibility to close this appropriately.

connectionGetExact :: Connection -> Int -> IO ByteString

Get exact count of bytes from a connection.

The size argument is the exact amount that must be returned to the user. The call will wait until all data is available. Hence, it behaves like hGet.

On end of input, connectionGetExact will throw an isEOFError exception. Taken from: https://github.com/vincenthz/hs-connection/issues/9