Network.Wai.EventSource

wai-extra-3.0.13.1: Provides some basic WAI handlers and middleware.

Safe Haskell | None
Language | Haskell98

Network.Wai.EventSource

Description

A WAI adapter to the HTML5 Server-Sent Events API.

Synopsis

- data ServerEvent
  - = ServerEvent {
    - eventName :: Maybe Builder
    - eventId :: Maybe Builder
    - eventData :: [Builder]
    }
  - | CommentEvent {
    - eventComment :: Builder
    }
  - | RetryEvent {
    - eventRetry :: Int
    }
  - | CloseEvent
- eventSourceAppChan :: Chan ServerEvent -> Application
- eventSourceAppIO :: IO ServerEvent -> Application

# Documentation

data ServerEvent

Type representing a communication over an event stream. This can be an actual event, a comment, a modification to the retry timer, or a special "close" event indicating the server should close the connection.

Constructors

ServerEvent |
Fields eventName :: Maybe Builder eventId :: Maybe Builder eventData :: [Builder]
CommentEvent |
Fields eventComment :: Builder
RetryEvent |
Fields eventRetry :: Int
CloseEvent |

eventSourceAppChan :: Chan ServerEvent -> Application

Make a new WAI EventSource application reading events from the given channel.

eventSourceAppIO :: IO ServerEvent -> Application

Make a new WAI EventSource application reading events from the given IO action.