Week 45, year 2022

Your organization should run its own Mastodon server - The latest crisis at Twitter has led to a big surge of interest in Mastodon and the broader Fediverse of open social media platforms. My colleague Julien Deswaef has long been an advocate of the Fediverse. Here he explains why organizations should take control of their own social media platform by running their own Mastodon server. [Martin Fowler]
Multiple Mastodon Accounts - The usual Twitter convention is to follow the whole person, meaning one Twitter account for a person would tweet on many different subjects. In the Fediverse, however, that's not encouraged, so we'll see many people having multiple Mastodon (and other) accounts.s [Martin Fowler]
How events can help in making the state-based approach efficient - In my last few articles, I showed the power of functional composition. That’s a foundation for effective modelling of your business logic… [Event-Driven by Oskar Dudycz]
Production Considerations for Spring on Kubernetes - Excellent, in-depth article about things to consider when developing Spring Boot applications for Kubernetes environment. [odedia's corner via Aggregater Linklog]

Permalink | From 07 November 2022 to 13 November 2022 | Last updated on: Fri, 16 Dec 2022 18:43:40 GMT

Week 44, year 2022

Exploring Mastodon - I've been a heavy user of Twitter over the last decade, and while Musk's purchase of Twitter hasn't got me running for the exit, it has prompted me to take a look at possible alternatives should Twitter change into something no longer worthwhile for me. The obvious alternative is for me to explore the fediverse with a Mastodon account. As I explore using Mastodon, I'll make some notes here so that others can learn from my explorations. [Martin Fowler]
Twitter feed now cross-posts to Mastodon - One of the main things I wanted to do with Mastodon was to replicate my twitter feed there, so that folks who would rather follow me on Mastodon could get everything. To do this, I used moa. party. You have to give it credentials to access both your Twitter and Mastodon feeds, which is a little worrisome, but my Mastodon-aware colleagues have used it without problems. It allows cross-posting in either or both directions, but I've set it up to just go from Twitter to Mastodon. It's pretty simple and seems to be working. [Martin Fowler]
An appeal to Americans who aren't inclined to vote in the midterm elections - In the United States, we have midterm elections coming up. Many people aren't interested in politics, or feel there is nobody worthwhile to vote for. If you're an American inclined to skip voting in these midterms, I'd appreciate it if you read my appeal. [Martin Fowler]
Never Lose Data Again - Event Sourcing to the Rescue! - Relational databases are not losing data. They’re robust, consistent and secure! Are they? Too often, we mix technical and logical concepts… [Event-Driven by Oskar Dudycz]

Permalink | From 31 October 2022 to 06 November 2022 | Last updated on: Sun, 6 Nov 2022 22:08:23 GMT

Week 43, year 2022

The Cloud is Not a Railroad - An Argument Against the Vertical Separation of Cloud Providers - There's a move to regulate cloud providers by vertically separating the services they offer. Like railroads of yore, who were not allowed to provide freight services on top of their base services, cloud providers would not be allowed to provide services on top of their base platform services. Vertical separation would be new to the cloud industry. Is it a good idea? Would it actually solve any problems? My answers are no and no, but probably not for the reasons you think. Let's dive in. Here are a few useful resources for exploring this argument: Maintaining monopolies with the cloud by Cory Doctorow. [High Scalability]
Generic types are for arguments, specific types are for return values - Today, we’ll discuss the following guideline: you should use the most generic types possible for arguments and the most specific types possible for return values. [Enterprise Craftsmanship]
How Postgres sequences issues can impact your messaging guarantees - Big picture descriptions and overall explanations are great. They help us to understand the foundations of new ideas and then find the place… [Event-Driven by Oskar Dudycz]

Permalink | From 24 October 2022 to 30 October 2022 | Last updated on: Fri, 28 Oct 2022 23:19:25 GMT

Week 42, year 2022

How to implement Event-Driven Architecture - You’ve heard about Event-Driven Architecture (EDA) on your journey to event sourcing, read the blog posts, and watched the videos. You’re positive it would help your business achieve more. So, how do you go about implementing it? This page gives you some useful advice on how to implement EDA and affect real change in your business, maximizing your investment in your technical architecture. [Event Store blog]
Creating multidisciplinary stream-aligned teams to escape the product-vs-engineering bottleneck - Rick and Kennedy continue explaining how to deal with the lack of collaboration between product and engineering. This installment advises creating multidisciplinary stream-aligned teams and establishing team working agreements. [Martin Fowler]
Developers' tips for Event Sourcing & EDA - If you’ve made it through our Beginner’s Guide to Event-Driven Architecture (EDA) and Beginner’s Guide to Event Sourcing, you’re probably ready to start building your first event-driven application. The Event Store team put their heads together to come up with a list of tips that can give you the best start. [Event Store blog]
Negotiate a balanced product investment mix - Rick and Kennedy conclude their article on the bottleneck caused by tension between product and engineering. This final section addresses balancing between under and over-engineering in the product's technical infrastructure. [Martin Fowler]
Bliki: ConwaysLaw - Pretty much all the practitioners I favor in Software Architecture are deeply suspicious of any kind of general law in the field. Good software architecture is very context-specific, analyzing trade-offs that resolve differently across a wide range of environments. But if there is one thing they all agree on, it's the importance and power of Conway's Law. Important enough to affect every system I've come across, and powerful enough that you're doomed to defeat if you try to fight it. The law is probably best stated, by its author, as: [1] Any organization that designs a system (defined broadly) will produce a design whose structure is a copy of the organization's communication structure. -- Melvin Conway Conway's Law is essentially the observation that the architectures of software systems look remarkably similar to the organization of the development team that built it. [Martin Fowler]
Writing and testing business logic in F# - My road to functional programming was pretty long. I started with structural programming in C++ and then rebranded into an Object-Oriented… [Event-Driven by Oskar Dudycz]
Transformation Agents: An Engagement Model - No one can transform an organization from the outside. But on the inside you're bound by legacy rules. Catch-22? [The Architect Elevator]

Permalink | From 17 October 2022 to 23 October 2022 | Last updated on: Sun, 30 Oct 2022 17:07:50 GMT

Week 41, year 2022

Bottleneck #03: Product v Engineering - In the third article on the Bottlenecks of Scaleups, Rick Kick and Kennedy Collins talk about the bottleneck that occurs when friction develops between product and engineering. In this first installment they discuss the signs that show this friction is occurring: with finger pointing and engineering lacking a sense of product context, as the teams communicate but don't collaborate. [Martin Fowler]
Getting out of the product-v-engineering bottleneck by identifying your "first team" - Rick and Kennedy start their discussion of how to break through the product-V-engineering bottleneck by getting people to identify and focus on their "first team", and to develop a shared understanding of how a business creates value. [Martin Fowler]
Push-based Outbox Pattern with Postgres Logical Replication - There are only a few patterns that I’m comfortable saying: “You should use it always if you want to build mature system”. One of them is the… [Event-Driven by Oskar Dudycz]
Every Constraint is an Opportunity - You can make transformation lemonade from organizational lemons--sweetened up with the right dose of creativity. [The Architect Elevator]

Permalink | From 10 October 2022 to 16 October 2022 | Last updated on: Tue, 25 Oct 2022 17:09:04 GMT

Week 40, year 2022

Announcing: A Completely New and Updated Version of Explain the Cloud Like I'm 10 - I've been working hard on a completely updated version of Explain the Cloud Like I'm 10 and I'm happy to announce it's ready! You can buy version 2. 0 at: https://www.amazon.com/Explain-Cloud-Like-Im-10-ebook/dp/B0765C4SNR. If you've already bought, Explain the Cloud Like I'm 10, then you should just be able to update to the new version for free. What's new? This version has about 2x the material. [High Scalability]
Testing business logic in Event Sourcing, and beyond! - I’ve heard a few times that Event Sourcing is hard to test. I’m not sure where this myth comes from; maybe from mixing it with event… [Event-Driven by Oskar Dudycz]
Multitenancy with Axon - In cloud computing, multitenancy allows multiple application users to use the same resources while remaining totally separate from each other – logically and physically. [Blog]

Permalink | From 03 October 2022 to 09 October 2022 | Last updated on: Fri, 4 Nov 2022 18:36:45 GMT

Week 39, year 2022

21.10.8 Release Notes - We are pleased to announce the official release of EventStoreDB OSS & Commercial version 21.10.8 long-term support (LTS). [Event Store blog]
Securing Web APIs with Azure AD: Connecting External Clients - In the previous post, we looked at enabling local development by creating an Azure AD Group, assigning our user (me) to that group, and assigning the appropriate App Roles (modeled as permissions) to that group. In this post, we'll be doing similar with an external client. [Jimmy Bogard]
Dive a bit deeper, look a bit wider - We live in a time of information overload. We are constantly stimulated. Our focus skills are similar to a goldfish. Seemingly our life is… [Event-Driven by Oskar Dudycz]
Event Store at the Developers Conference Mauritius - Event Store is excited to be joining this year's Developers Conference in Mauritius as a Reality Stone sponsor, taking place from 22nd - 24th of November. [Event Store blog]
Securing Web APIs with Azure AD: Connecting Azure Clients - In the last post, we used OAuth 2.0 Client Credentials flow to connect an external client (modeling our on-prem scenario). We can use that same approach for the internal Azure traffic, creating app registrations and creating client secrets. [Jimmy Bogard]
Securing Web APIs with Azure AD: Connecting Azure Clients - Posts in this series: A Case Study Designing Authentication Schemes Authorizing Client Applications Building the Server Enabling Local Development Connecting External Clients Connecting Azure Clients Full example In the last post, we used OAuth 2.0 Client Credentials flow to connect an external client (modeling our on-prem scenario). We can [Jimmy Bogard]
Securing Web APIs with Azure AD: Connecting External Clients - Posts in this series: A Case Study Designing Authentication Schemes Authorizing Client Applications Building the Server Enabling Local Development Connecting External Clients Connecting Azure Clients Full example In the previous post, we looked at enabling local development by creating an Azure AD Group, assigning our user (me) to that group, [Jimmy Bogard]

Permalink | From 26 September 2022 to 02 October 2022 | Last updated on: Mon, 7 Aug 2023 22:06:33 GMT