@hackage / net-mqtt

An MQTT Protocol Implementation.

Latest0.8.6.4

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  • Last updated , by dustin
  • License BSD-3-Clause
  • Categories Network Development

  • Maintained by: dustin@spy.net

  • Lottery factor: 1

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mqtt

An MQTT protocol implementation for Haskell.

Client Examples

Publish
import Network.MQTT.Client
import Network.URI (parseURI)

main :: IO ()
main = do
  let (Just uri) = parseURI "mqtt://test.mosquitto.org"
  mc <- connectURI mqttConfig uri
  publish mc "tmp/topic" "hello!" False
Subscribe
import Network.MQTT.Client
import Network.URI (parseURI)

main :: IO ()
main = do
  let (Just uri) = parseURI "mqtt://test.mosquitto.org"
  mc <- connectURI mqttConfig{_msgCB=SimpleCallback msgReceived} uri
  print =<< subscribe mc [("tmp/topic1", subOptions), ("tmp/topic2", subOptions)] []
  waitForClient mc   -- wait for the the client to disconnect

  where
    msgReceived _ t m p = print (t,m,p)