mqtt-client | MQTT is a machine-to-machine / `` Internet

I am new to mqtt and am trying to simply start a local instance with which I can test.

When executing

I am trying to stub a exported function from a module, so that i can replace the return value and also check if the function has been called.

I already created a stub, the tests runs through, but somehow the stub doesn't get used in the function, and the stub doesn't get called once.

index.ts

Flutter information:

I keep getting the error from the title while trying to push to docker via GitHub Actions. I have a Java Maven application. When I build and push the docker image manually everything works but it does not work automatically via GitHub Actions as specified in the title.

Here is my workflow action:

I spent hours to to setup the TSL connection for my mosquitto broker in my raspberry. Now I can publish and subscribe topics in a client (on raspberry) using client certificate, client private key and ca certificate. It works correctly.

Now I want to create the client in the ESP32 (IDF platform). I started from the example called ssl_mutual_auth. Unfortunatly in the example is used the client certificate, client private key and a server certificate not the ca certificate. So.. I'm confused and I don't know how to manage the ca.crt file in esp32 client (or Mosquitto client). Do I need to change my certificates or my mosquittos configuration? I used this guide to configure my mosquitto broker : https://medium.com/himinds/mqtt-broker-with-secure-tls-communication-on-ubuntu-18-04-lts-and-an-esp32-mqtt-client-5c25fd7afe67

Here the Mosquitto.conf details where I set the path of certificates:

Is there a built in way to check with hivemq-mqtt-client if a specific topic matches another topic in advance?

For instance, a message published with topic:

publishedTopic= "sensors/sensor1";

A client that subscribes:

subscribedTopic = "sensors/#";

Is there something like publishedTopic.matches(subscribedTopic)?

The exact situation:

I run a broker in my house, several devices publish values with different topics. Some like sensor/humi[45], some like sensor/data[JSON Payload]. For my personal use I run an application using Java HiveQM MQTT clients. One client is subscribed to relevant topics using mosquitto on raspberryPi. The other client is publishing selected data to a public accessible broker. Receiving a new message will not only process all data in the way I process it but also trigger a publishing the received message to the public broker.

Yes, I can

I am trying to create a source for metrics from my spark application written in Scala to export data to another system, preferable to Prometheus. According to this site from Data bricks I need to create a source that extends the Source trait. However, the Source trait is private[spark] trait Source and my source cannot visualize it. When I create this class I get the error Symbol Source is inaccessible from this place.

we are currently switching form an older version of Eclipe Paho MQTT Client to Version 1.2 of HiveMQ MQTT Client. https://github.com/hivemq/hivemq-mqtt-client

Currently playing around with the Aync- version of the client which needs a Consumer function as a callback.

One of our MQTT Client Applications has to process/consumer a lot messages on many different topics and the processing of one message should not have to wait for the previous to finish. We are not sure what's the best way to achieve parallel processing of messages with only one client instance.

In the documentation above there is an optional executor that can be defined

I am new to Angular and UI-Router and I have to work with an Angular codebase. I am having difficulty understanding how the params gets mapped to the url. Specifically how topics get injected as topic in /test?topic&manualMode&advancedMode I cannot seem to find the place where I can log out the intermediate value to see how the url gets constructed.