Posts

Featured image for "Creating pages with Gatsby"
JavaScript

Creating pages with Gatsby

Gatsby has a large set of APIs, and one of them is to programmatically create new pages. In this tutorial we'll use this API to create detail pages for each blogpost.

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Featured image for "Difference between Mono and Flux"
Java

Difference between Mono and Flux

Project Reactor introduced us two specific types of publishers, being Mono and Flux. In this tutorial we'll see what they mean and what we can use them for.

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Featured image for "Using Gatsby with WordPress as a headless CMS"
JavaScript

Using Gatsby with WordPress as a headless CMS

If you want to use WordPress as a headless CMS with Gatsby, I'll demonstrate how you can achieve this in this tutorial.

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Featured image for "Writing dynamic queries with Spring Data JPA"
Java

Writing dynamic queries with Spring Data JPA

With Spring Data, we can easily write queries usinng @Query. For more dynamic queries, we can use the Example and Specification API, which we'll explore here.

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Featured image for "Loading initial data with Spring"
Java

Loading initial data with Spring

With Spring, you can set up your initial data in different ways. In this tutorial we'll discover database migration tools, and other options.

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Featured image for "Distributed tracing with Istio and Jaeger"
Tutorials

Distributed tracing with Istio and Jaeger

So far, we've already explored some of the elements Istio provides, such as visualizing our service mesh with Kiali, and monitoring our application metrics with Prometheus and Grafana. In this tutorial, we'll see how we can use Jaeger with Istio.

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Featured image for "Collecting application metrics with Istio"
Tutorials

Collecting application metrics with Istio

Istio comes with Prometheus and Grafana out of the box. In this tutorial we'll demonstrate how you can set up your pods to be scraped by Istio's monitoring.

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Featured image for "Reactive streams over the network with RSocket"
Java

Reactive streams over the network with RSocket

With RSocket, we can reactively stream our data over the network. In this example I'll demonstrate how RSocket can be used with Spring boot.

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Featured image for "Reactive relational databases with R2DBC and Spring"
Java

Reactive relational databases with R2DBC and Spring

With Spring boot's experimental starter for R2DBC, we can now reactively connect to our relational databases, and in this example we'll see how.

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Featured image for "Creating a servicegraph with Kiali and Istio"
Tutorials

Creating a servicegraph with Kiali and Istio

In this tutorial, we'll use Kiali to visualise our Istio service mesh on Kubernetes. With Kiali, we can view a servicegraph, and several other graphs.

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