remove userHander()

src/interface.jl

@@ -241,12 +241,12 @@ end
 """
     mqtt communication loop, call this function manually 
 """
-function mqttRun(client::mqttClient, userMsgHandler::Function)
+function mqttRun(client::mqttClient)
     mqttLoop!(client)
     mqttCheckConnection!(client)
     mqttReconnect!(client)
     mqttSubOnConnect!(client)
-    mqttOnmessage!(client, userMsgHandler)
+    return mqttOnmessage!(client)
 end
 
 
@@ -260,9 +260,9 @@ end
     end
 
 """
-function mqttOnmessage!(client::mqttClient, userMsgHandler::Function)
+function mqttOnmessage!(client::mqttClient)
     nmessages = Base.n_avail(get_messages_channel())
-    nmessages == 0 && return 0
+    nmessages == 0 && return nothing
 
     timepass = (Dates.now() - client.boottime).value / 1000.0
     
@@ -280,9 +280,8 @@ function mqttOnmessage!(client::mqttClient, userMsgHandler::Function)
             topic = pkg.topic
             # sptoptic = split(topic, "/")
             payload = vecToDict(pkg.payload)    # payload in Dict format
-
-            # Do something with the message
-            userMsgHandler(topic, payload)      # user defined function in user space. How to handle msg
+            
+            return payload
         end
     end
 end 
@@ -348,21 +347,8 @@ function respond(client::mqttClient, respond_msg::Dict, request_msg::Dict; pubto
 end
 
 
-
-
-
-
-
-
-
-
-
-
-
-
-
 """
-    Store details about mqtt and connected-Clients1
+    Example of mqtt_member_dict which store details about mqtt and connected-Client
 """
 mqtt_member_dict = Dict(
     :firstClient=> Dict(    # masterController itself for internal communication
@@ -429,8 +415,6 @@ mqtt_member_dict = Dict(
 )
 
 
-
-
 """ operate on mqtt_member_dict
     Connect all clients to relevent server
 """
@@ -536,7 +520,7 @@ end
 """ operate on mqtt_member_dict
 """
 # What to do if there is a message
-function mqttOnmessage!(mqttMemberDict, netpieCommDict::Dict, workDict::Dict)
+function mqttOnmessage!(mqttMemberDict::Dict, netpieCommDict::Dict, workDict::Dict)
     nmessages = Base.n_avail(get_messages_channel())
     nmessages == 0 && return 0
 
@@ -604,7 +588,7 @@ end
 """ operate on mqtt_member_dict
     network run
 """
-function mqttLoop!(mqttMemberDict; timeout=100)
+function mqttLoop!(mqttMemberDict::Dict; timeout=100)
     for (k, v) in mqttMemberDict
         member = mqttMemberDict[k]
         loop(member[:mqttClient], timeout=timeout)