Network.Wai.Middleware.Slack

Usage

Settings are controlled via the type SlackConfig:

import Network.HTTP.Types.Status
let slackConfig = SlackConfig {
    webHookUrl = "https://hooks.slack.com/services/xxx/xxxxxxxx",
    httpManager = appHttpManager foundation,
    responseFilter = \resp -> status400 == responseStatus resp,
    requestFilter = \_ -> True
}

The above configuration will send slack notification for all 400 http status code.

Integration with Yesod Scaffolding templates

Go to Application.hs and change the makeApplication function to something like this:

makeApplication :: App -> IO Application
makeApplication foundation = do
  logWare <- makeLogWare foundation
  let slackConfig = SlackConfig {
                               webHookUrl = "https://hooks.slack.com/services/xxxx/xxxxxxx",
                               httpManager = appHttpManager foundation,
                               responseFilter = \resp -> status400 == responseStatus resp,
                               requestFilter = \_ -> True
                             }
  -- Create the WAI application and apply middlewares
  appPlain <- toWaiAppPlain foundation
  return $ slack slackConfig $ logWare $ defaultMiddlewaresNoLogging appPlain

data SlackConfig

Slack configuration for the middleware. Slack notification will be emitted only if this evaluates to True: responseFilter && requestFilter. This comes handy in situations where you don't want to send notifications for certain Requests even if responseFilter results in True.

Constructors

SlackConfig

Fields

• webHookUrl :: String

  Slack webhook URL

• httpManager :: Manager
• responseFilter :: Response -> Bool

  If True, check requestFilter to see if slack notiication needs to be sent. On False, no slack notification is sent.

• requestFilter :: Request -> Bool

  If True, show slack notification. Else no slack notification is sent. Note that this condition is only checked if responseFilter is True.

slack :: SlackConfig -> Middleware

Slack middleware for Wai. Use the logStatus to control on which status you want to log the request information in Slack.