https://github.com/dustin/mqtt-hs

Haskell MQTT client.
https://github.com/dustin/mqtt-hs

haskell iot mqtt networking

Last synced: 26 days ago
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Haskell MQTT client.

• Host: GitHub
• URL: https://github.com/dustin/mqtt-hs
• Owner: dustin
• License: bsd-3-clause
• Created: 2019-01-04T07:38:41.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2023-08-25T07:30:15.000Z (about 1 year ago)
• Last Synced: 2024-05-09T20:27:21.406Z (6 months ago)
• Topics: haskell, iot, mqtt, networking
• Language: Haskell
• Size: 2.62 MB
• Stars: 39
• Watchers: 5
• Forks: 23
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Changelog: Changelog.md
  • License: LICENSE

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README

        
# mqtt

An [MQTT][mqtt] protocol implementation for Haskell.

## Client Examples

### Publish

```haskell

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

```haskell

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)

```

[mqtt]: http://mqtt.org/