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Taking Ergo for a spin
// Erik Lupander
Taking a quick look at Erlang-style actor architecture using Go with Ergo Framework.
Data i rörelse
// Ove Lindström
För en tid sedan höll Confluent en dag med temat “Data in Motion”. I denna utforskande text sammafattar jag mina intryck av dagen och ger min syn på den ständigt växande världen av datahantering inom IT-branschen.
Från traditionella metoder för att samla och lagra data till moderna arkitekturmönster som Data Mesh och det dynamiska landskapet av dataströmmar. Jag utforskar konceptet av data som en produkt, hanteringen av komplexiteten i dagens system, och de utmaningar som uppstår när man hanterar data i rörelse.
Och jag reflekterar över den övergripande frågan - är det värt att övergå till strömmad data? Det beror på…
Upgrade to Spring Boot 3.1
// Magnus Larsson
Spring Boot 3.1 was released in May 2023 during the wrap-up of writing the 3rd ed of my book, so there was no time to upgrade the code before releasing the book. Instead, in this blog post, I will describe how to upgrade the source code examples in the book from Spring Boot 3.0 to Spring Boot 3.1, use some of the new features like Testcontainers at development time, and also cover some new and resolved bugs.
World Summit AI 2023 i Amsterdam
// David Ström
Samma vecka som några av mina kollegor besökte GSAS i Barcelona så hade jag möjligheten och nöjet att besöka World Summit AI 2023 i Amsterdam, där vädret inte låter sig jämföras med Katalonien men jag tror att konferensinnehållet var minst lika bra! Därför tänkte jag, utifrån en handfull anteckningar, mitt bristfälliga minne och på mitt eget fullkomligt otillräckliga sätt, försöka dela med mig av några höjdpunkter, teman och reflektioner från konferensen.
GSAS Barcelona 2023
// Andreas Mossljung
I veckan flydde vi hösten för ett par dagars konferens i soliga Barcelona och Global Software Architecture Summit 2023. Där fick vi två dagar fulla av presentationer i en lokal som påminde lite om biosalongerna där vi brukar ha vår egen Cadec, men med lite mindre bekväma stolar.
How to Make Codable Work with Swift's New Observation Framework and the @Observable Macro in SwiftUI
// Anders Forssell
With Swift 5.9 and Xcode 15, introduced in this year’s WWDC, there is a new take on how observation is implemented and integrated with SwiftUI. The new macro capability in Swift has enabled the replacement of the protocol ObservableObject and property wrappers like @Published, @ObservedObject and @StateObject with the new @Observable macro. The new Observation framework brings several advantages aiming for simpler usage and improved performance by updating only the views directly affected by changes in the data model.
Dynamic Multi Tenancy with Spring Boot, Hibernate and Liquibase Part 8: Shared Database pattern with Hibernate 6
// Björn Beskow
In part 5, we implemented the Shared Database with Discriminator Column pattern using Hibernate filters. Since then, Hibernate has implemented native support for Discriminator-based multitenancy. Hence in this final part, we’ll implement the Shared Database with Discriminator Column pattern using Hibernate 6 and Spring Boot 3.
The Role of Roles in Ansible - A path to local IaC part 2
// Henrik Starefors
This post is part two of dipping our toe into the ocean of Ansible.
In part 1 of this series, we reviewed the basics of Ansible, how to build and execute tasks, and how to create our first playbook to contain it all. If you missed it, you can find part one here
Managing APIs using Kong Gateway Part 3: Mutual TLS and Certificate-Bound Access Tokens
// Björn Beskow
In the first part, we implemented access control for a sample API using Kong plugins for OIDC and OAuth 2.0, and in the second part, we implemented access control using Mutual TLS. In this short post, we will combine OAuth 2.0 Client Credentials with Mutual TLS, which is a frequently used pattern.
Managing APIs using Kong Gateway Part 2: Securing an API using Mutual TLS and Access Control Lists
// Björn Beskow
In the last part, we implemented access control to a sample API using Kong plugins for OIDC and OAuth 2.0. In this post, we will instead use Mutual TLS, where an x509 client certificate is used to authenticate the client. We will combine that with an Access Control List, where information from the client certificate is used to grant access.
Creating a Public Key Infrastructure for development
// Björn Beskow
Since https now being the default protocol in modern browsers rather than plain http, it is often necessary to be able to use https in local development and test environments. While many tools bundles a mechanism for automatically create self-signed server certificates for https usage, it is often necessary to be able to create a full Public Key Infrastructure for the development environment, with a Certificate Authority (CA) issuing both server certificates (used for backend servers) and client certificates (used for Mutual TLS). In this short blog post, we’ll summarize the steps required to set up a development PKI using OpenSSL.
Managing APIs using Kong Gateway Part 1: Securing an API using OIDC and OAuth 2.0
// Björn Beskow
API gateways are becoming increasingly more popular, and for good reasons. As the number of APIs within an organisation grows, the amount of “plumbing” required to expose the APIs in a secure, efficient and maintainable way quickly becomes overwhelming. An API Gateway is an architectural pattern which introduces a transparent placeholder between API clients and the APIs, where Cross Cutting Concerns such as Access Control, Monitoring, Logging, Caching and Rate Limiting can be implemented. In this blog series, we’ll be demonstrating how to use Kong, one of the leading Open Source API Gateways, to add various common capabilities to an API.
ABCs of Ansible - A path to local IaC
// Henrik Starefors
This post is part one of a series about using Ansible to automate the setup of our local development environment. In this part, we will look at the building blocks of Ansible and write our first automation tasks.
Kafka and Go - distributed state
// Björn Gylling
How do you approach using Kafka to store your data when building a HTTP api? In this series we build an application which would traditionally be backed by a classic database, the basic ‘Create-Read-Update-Delete’ api. Instead of a traditional database we store our data in Kafka and over the series look at some of the issues with this approach and how you can solve them. If you want to read from the beginning, you can find Part 1 here.
Kafka and Go - consumer group
// Björn Gylling
How do you approach using Kafka to store your data when building a HTTP api? In this series we build an application which would traditionally be backed by a classic database, the basic ‘Create-Read-Update-Delete’ api. Instead of a traditional database we store our data in Kafka and over the series look at some of the issues with this approach and how you can solve them. If you want to read from the beginning, you can find Part 1 here.
Kafka and Go - producing messages
// Björn Gylling
How do you approach using Kafka to store your data when building a HTTP api? In this series we build an application which would traditionally be backed by a classic database, the basic ‘Create-Read-Update-Delete’ api. Instead of a traditional database we store our data in Kafka and over the series look at some of the issues with this approach and how you can solve them. If you want to read from the beginning, you can find Part 1 here.
Kafka and Go - consuming messages
// Björn Gylling
How do you approach using Kafka to store your data when building a HTTP api? In this series we build an application which would traditionally be backed by a classic database, the basic ‘Create-Read-Update-Delete’ api. Instead of a traditional database we store our data in Kafka and over the series look at some of the issues with this approach and how you can solve them.
A CHIP-8 interpreter with Rust and Go
// Erik Lupander
I recently stumbled upon this great guide on how to build a CHIP-8 interpreter from scratch. This blog post is a personal rambling on my experience learning a bit of Rust by implementing a CHIP-8 interpreter, with some comparison with Go thrown into the mix.
Develop, build and deploy microservices on Apple silicon (ARM64)
// Magnus Larsson
This is the third blog post describing how to update the tools and frameworks used in the 2’nd edition of my book. In this blog post, we will learn how to develop, build and deploy microservices on a Mac with Apple silicon, i.e., an ARM64-based computer.
Path tracing with Golang and OpenCL, part 2
// Erik Lupander
In this part, we’ll take a quick look at OpenCL in general and a bit deeper look at how to make Go play nicely with OpenCL.