During the just passed Christmas holidays, I decided to spend the spare time for digging into the reactive programming paradigm, the “Reactive streams” manifesto and the related ReactiveX implementation (more specifically on the RxJava one). This blog post doesn’t mean to be a discussion about what reactive streams are or what reactive programming is just because you […]
When I say to someone that I work for Red Hat they say me “Ah ! Are you working on Linux ?” … No, no, no and … no ! I’m not a Linux guy, I’m not a fan boy but I’m just a daily user 🙂 All people know that Red Hat is THE […]
Let’s think about what we can consider some weaknesses of the MQTT protocol … it provides native publish/subscribe pattern only; having request/reply is quite cumbersome with “correlation injection” inside topics and payload messages; it doesn’t provide flow control; it doesn’t have metadata information inside messages (i.e. content type); it’s fully broker centric; but there are some […]
I’m very happy to announce that I have just released the first version of a new messaging and IoT library for providing AMQP 1.0 protocol support on Node-RED that is a very interesting tool for wiring Internet of Things. This library is based on the official JavaScript RHEA library which provides AMQP 1.0 support for […]
In the previous article, we installed the Qpid Dispatch Router and had a quick overview about the available tools inside the installation package for both router management and monitoring. Now it’s time to start using the router from simple to complex configurations and network topologies with some examples which will involve AMQP senders, receivers and/or […]
Speaking about the AMQP (Advanced Message Queuing Protocol) protocol, a lot of people think that it’s only about messaging between clients and brokers. There are a bunch of MOMs (Message Oriented Middleware) which support this protocol to enable clients to send and receive messages so to exchange data each other. We can think about open […]
I hope you all already know about DZone web site ! If not I suggest you to take a look for its great content that cover a lot of technology areas from Agile, Database and Web development to Cloud, Big Data and IoT. The section I love is the DZone Refcardz that could be defined the world’s […]
To complete the last two article series (data from device to cloud, command/feedback from cloud to device) on using AMQP protocol stack to interact with Azure IoT Hub, we need to get telemetry data from the devices. When devices send data through their D2C endpoints, these data flow into the IoT Hub system and are made available […]
In the previous article, I described how it’s possibile to send telemetry data from a device and receive commands (sending feedback) from the cloud (to the device itself) using AMQP .Net Lite library connecting to the Azure IoT Hub. This approach is useful for some platforms that aren’t supported by the official SDKs like the .Net Micro Framework […]
Accessing to the Azure IoT Hub service is so simple using all the available SDKs that Microsoft provides as open source on GitHub. We can laverage on more different languages for different platforms : from C# for .Net and UWP (Universal Windows Platform) applications to Java, from NodeJS (using JavaScript) to C. In this way, we […]
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