I have some subscribers that they are listening to "mytopic"...I send message to them by browser UI just like attached image but now I want to do this work in code environment what should I do and whats that code and methods?
Thanks
I have some subscribers that they are listening to "mytopic"...I send message to them by browser UI just like attached image but now I want to do this work in code environment what should I do and whats that code and methods?
Thanks
You should have a look at ActiveMQ Protocols - for example you can use the ActiveMQ REST API to POST messages to the topic or use JMS.
Then you can look at how to use these from a "client" (presumably your central server) perspective.
For REST from Java (say) you could look at this article
You should have mentioned what programming language you want to use. Every language may offer a different API and specification.
In case of using Java, you can simply program according to the JMS specification https://docs.oracle.com/javaee/7/api/javax/jms/package-summary.html
Also, the Apache ActiveMQ installation comes with a few examples that you can use as a reference. E.g. see examples/openwire/swissarmy/src/TopicPublisher.java