Clever Geek Handbook

How to set up MQTT-SN topic ids in RSMB

my question is about configuring RSMB using MQTT topic names and MQTT-SN object IDs over an MQTT-SN gateway.

Using "Getting Started with a Real Small Message Broker" is very useful for figuring out how to set up name mapping when two true small message browsers are connected.

Regarding the MQTT-SN v1.2 specification under "6.10 Gateway Publishing Procedure", the gateway (in my case the gateway is enabled in RSMB using the broker_mqtts implementation) can send a REGISTER message to inform the client of the topic name and its assigned topic ID value ... Now I would like to customize the mapping of MQTT topic names to predefined MQTT-SN topic IDs.

Can the mapping be configured in the RSMB broker.cfg configuration to tell the MQTT-SN client a predefined topic ID after a successful RSMB connection?

+3


source to share


3 answers


Unfortunately no. RSMB does not support predefined themes at this time. However, you can register threads from the client side. Or you can subscribe to real topics.



I found that RSMB is almost not production-ready anywhere. You can experiment with it, but it has a lot of bugs.

0


source


I faced the same issue with RSMB. Then I decided to deploy the original Git project to Github and add this feature myself. It's available at https://github.com/MichalFoksa/rsmb . The function is described in Getting started .

It supports:

  • Dynamic predefined theme name, where place-holder [ClientId] is replaced with the replaced actual value of the client id. For example, a message posted by the client under the name "Sensorduino", sent to the specified topic name sensor/[ClientId]/meter

    will be published on the topic: sensor/ Sensorduino/meter

    .

  • Client configuration. This is the name of the subject to identify the Id specific to a specific client.



Hope it helps and it's not too late.

Michal

0


source


The more advanced fork from @ michal-foksa RSMB maintains a predefined theme in the config file.

https://github.com/tonnenpinguin/rsmb

0


source






More articles:


All Articles