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AWS is pretty good, with a lot of documentation. However, often you need to spot the detail you need among a bunch of documentation that’s not wrong, but isn’t quite going to cover your use case. Providing the low-level detail doesn’t always provide enough information to assemble a complete coherent solution. I’ve recently been constructing some Cloudformation deployments. We want ...

Hello. In this tutorial, we will implement a Node.js JWT (JSON Web Token) to protect the application endpoints from unauthorized access. The Node.js framework is commonly used to create server-based applications which are further used to show the contents to the users. 1. Introduction JSON web tokens (or the JWT’s) is an Open RFC standard that defines a compact and ...

Hello. In this tutorial, we will create a simple node.js application and perform the CRUD operations with the MongoDB. The node.js framework is commonly used to create server-based applications which are further used to show the contents to the users.  1. Introduction Let us first understand that what is Mongo database and set up Node.js. MongoDB is a high-performance NoSQL ...

Apache Camel 3.11 has just been released. This is a LTS release which will be supported for 1 year with regular patch and security releases. This blog post first details the noteworthy changes since the last 3.10 release from last month. For readers that are upgrading from the last 3.7 LTS release then we have added a summary section that ...

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In a previous post I had gone over how a “Try” type can be created in Kotlin from scratch to handle exceptions in a functional way. There is no need however to create such a type in Kotlin, a type called “Result” already handles the behavior of “Try” and this post will go over how it works. I will be ...

In Java, we often have framework support for importing settings from the file system of our application. If we’re lucky, and we often are, these settings can be customised and overridden by system properties or environment variables. However, there are a couple of situations where this doesn’t quite apply: Very lightweight applications that use no frameworksLoading custom settings based on ...

When our software outputs JSON, it can be hard to test. Consider this code: 1 2 assertThat(someJson)    .isEqualTo(expectedJson); Assuming the rendering of the resulting json matches the spacing of the expected JSON, this will work. When it doesn’t work, we get a big old string diff result telling us that the strings were different. But JSON isn’t a String What ...

The previous article demonstrated how to implement cross-cluster Anthos Service Mesh (ASM) in a single network. In this article we will illustrate the mesh service communication using different VPC network. The use case will focus on setting up two GKE cluster with ASM installed in two different VPCs. As the clusters are in different networks, the services in a mesh ...