B4J Question [B4X] - Exchanging data between apps

[Pitag]

Hi to all,
i was wondering which is the best way to exchange data between apps. My scenario is:
- a B4J application that runs on my home system (not on a remote server like a VPS)
- a B4A app that send some data to the b4j app (maybe settings or, anyway, a small amount of text data)

which is the smartest way for the two to communicate in your opinion?

In a local network i find mqtt very useful for example, but over the internet?
Consider that i do not want to expose my system on the Internet (no port forwarding).

 

[EnriqueGonzalez]

which is the smartest way for the two to communicate in your opinion?

You have either HTTP with Jserver or MQTT with JMqtt broker and Client

n a local network i find mqtt very useful for example, but over the internet?

If it isnt much information, mqtt is good even over the internet

Consider that i do not want to expose my system on the Internet (no port forwarding).

then, Mqtt with an external Broker is enough.

Or you can install a descentrilced VPN like tailscale and do whatever protocol you prefer.

 

[Pitag]

You have either HTTP with Jserver or MQTT with JMqtt broker and Client


If it isnt much information, mqtt is good even over the internet


then, Mqtt with an external Broker is enough.

Or you can install a descentrilced VPN like tailscale and do whatever protocol you prefer.

@EnriqueGonzalez do you know an online mqtt service? (i remember CloudMqtt but as far as i know, has only payed plans)
Firebase services can be a solution?
I remember that worked well on Android, but on B4J?

I know Tailscale and appreciate it, but i would prefer not to use it. I cannot leave it active on my phone, meaning that if i need to use the app, i have to remember to activate Tailscale first.

 

[EnriqueGonzalez]

@EnriqueGonzalez do you know an online mqtt service?

The Free Public MQTT Broker & MQTT Client by HiveMQ - Check out our MQTT Demo

Try our free online MQTT broker and MQTT Websocket Client from HiveMQ. Ideal for testing, debugging, and learning about MQTT.

www.hivemq.com

Firebase services can be a solution?

to store information yes. you can pull information in other please, but there are no libraries for firebase on B4J for example

I know Tailscale and appreciate it, but i would prefer not to use it.

i see, it happens

 

[Pitag]

The Free Public MQTT Broker & MQTT Client by HiveMQ - Check out our MQTT Demo

Try our free online MQTT broker and MQTT Websocket Client from HiveMQ. Ideal for testing, debugging, and learning about MQTT.

www.hivemq.com

to store information yes. you can pull information in other please, but there are no libraries for firebase on B4J for example


i see, it happens

@EnriqueGonzalez thank you, i will give it a try