Improve MQTT client example, fixes
@@ -48,18 +48,22 @@ m:on("message", function(client, topic, data)
end)
-- for TLS: m:connect("192.168.11.118", secure-port, 1)
-m:connect("192.168.11.118", 1883, 0, function(client) print("connected") end,
- function(client, reason) print("failed reason: "..reason) end)
-
+m:connect("192.168.11.118", 1883, 0, function(client)
+ print("connected")
-- Calling subscribe/publish only makes sense once the connection
--- was successfully established. In a real-world application you want
--- move those into the 'connect' callback or make otherwise sure the
--- connection was established.
+ -- was successfully established. You can do that either here in the
+ -- 'connect' callback or you need to otherwise make sure the
+ -- connection was established (e.g. tracking connection status or in
+ -- m:on("connect", function)).
-- subscribe topic with qos = 0
-m:subscribe("/topic",0, function(client) print("subscribe success") end)
+ client:subscribe("/topic", 0, function(client) print("subscribe success") end)
-- publish a message with data = hello, QoS = 0, retain = 0
-m:publish("/topic","hello",0,0, function(client) print("sent") end)
+ client:publish("/topic", "hello", 0, 0, function(client) print("sent") end)
+end,
+function(client, reason)
+ print("failed reason: " .. reason)
+end)
m:close();
-- you can call m:connect again
