Systems Thinking and Technical Debt
In this post I will try to use simplified Systems Thinking modelling language to put technical debt in the larger organisational context with the hope that it will make some sense to everyone.
Tag: design
Some More Lessons Learned in Event Driven Architectures
In this post I present some finer grained lessons we’ve learned (a. k. a burn marks) since then having solved some foundational problems that surfaced due to not paying enough attention to the failure modes inherent in EDAs, upfront
Using C# Source Generators to Generate Data Transfer Objects (DTOs)
Using C# Source Generators to generate DTOs could potentially save a lot of developer time, so in this post I am going to attempt to write just such a generator.
Curious Case of Database Transaction Deadlocks Using TransactionScope
We built an event driven system in my team over 2 years ago that sometime back ran into database transaction deadlock problems which puzzled me enough to want to take a deeper look into what happened. This mini-post is a bit of documentation of that investigation.
Some Heuristics for Mocking vs State Verification in TDD
In this post I will share some of the TDD heuristics that I have found useful on when you should use mocking to verify interactions and when should you resort to state verification.
Implementing Pipes & Filters Architectural Style With Azure WebJobs
…the whole business process can be divided into smaller asynchronous sub-processes with each one feeding i.e. “piping” its output into the input of the subsequent process(es). At each stage some processing is done for e.g. data enriching, filtering etc and this processing generically is termed as a “filter”.
Implementing Strangler Pattern using IIS & URL Rewriting for Legacy Systems Migration
Strangler pattern is a way of migrating from legacy applications to new ones with both being operational at the same time and the upgrade happening behind the scenes gradually.
Using Serverless Functions to Build a Microservices Architecture
Seeing as micro-service architectures are all the rage these days, I decided to dip into it by building…
JWT Token Authentication with Cookies in ASP.NET Core
In this post I will show one way to mix JWT Token authentication with cookie authentication using ASP.NET Core and send out the JWT in a response cookie.
Dynamically Mapping Tenant Requests to Tenant Databases in Multi-Tenant Web Applications
In a multi-tenant environment the application database is usually partitioned by tenants. This is done to achieve isolation and scalability. The problem of course is how do you route tenant requests to the correct databases?
Building Domain Driven Architecture in .NET – Part 3 (Repository Design)
In part 2, I talked about my domain modeling thought process so this post is about trying to persist those objects for long term storage. Although the avenue for different … Continue reading Building Domain Driven Architecture in .NET – Part 3 (Repository Design)
Building Domain Driven Architecture in .NET – Part 5 (ASP.NET Core App)
In part 4, I detailed the way I went about creating application services for my expense tracking application. In this final post, I will talk about the ASP.NET Core MVC … Continue reading Building Domain Driven Architecture in .NET – Part 5 (ASP.NET Core App)
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