B4J Question Data transfert

Erel

B4X founder

Staff member

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• Jan 22, 2016

• #2

You have two options:
1. MQTT
2. WebSockets

MQTT is simpler to use.

 

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fishwolf

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Longtime User

• Jan 27, 2016

• #3

i'm tring to use mqtt protocol

the broken manager the connection from client and server as chat example
the devices are the clients

but the process that write and read into database is a broken implementation?
or i a client that subscribe all flows?

 

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Erel

B4X founder

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• Jan 28, 2016

• #4

There is no implementation in the broker side. You should add a client that subscribes to whichever topics you like and write the data into the database.

 

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fishwolf

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Longtime User

• Jan 28, 2016

• #5

1) if i understand well, if i have 1.000 client, i have a "hub" client that subscribe 1.000 channels
right?

2) the broken don't receive events, but i have notice the Inizializate method have the event name, can i check if all clients are connected? or manage other events?

 

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Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jan 28, 2016

• #6

1) More or less. You can subscribe to all topics by subscribing to #.

2) Note that it is broker. Not broken
As the documentation says there are currently no events.
However you can monitor the connected clients. It requires using Last Will. See the chat example: https://www.b4x.com/android/forum/threads/b4x-mqtt-chat-room.61568/#content

 

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