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)

Building Domain Driven Architecture in .NET – Part 4 (Application Services)

Application services can be loosely compared with the business logic layer of the yesteryear with one key difference, application services don’t actually contain any business logic neither they enforce any business logic.

Building Domain Driven Architecture in .NET – Part 2 (Domain Modeling)

In this post, I will be going over the domain modeling in a bit more detail in terms of its design and show my thought process and the decisions I made and why I made them.

Building Domain Driven Architecture in .NET – Part 1 (Overview)

Having read Vaugh Vernon’s book on DDD implementation, I decided to portgrade (port+upgrade) my old clunky Windows based N-tier desktop expense tracking application to ASP.NET Core MVC application using some of the Domain Driven Design concepts I studied in the book.

You Ain’t Gonna Need That API

If you are not sure who this API is going to benefit and how, chances are You Ain’t Gonna Need It