January 2020 – Decoding the code

Introduction

When I started migration process to Azure Function 3.0 of an existing project, I have discovered small, but painful inconvenience. The problem was that all function.json files were permanently removed from output folder just before Azure Function Tools func.exe was started. I have to confess it was very annoying. There were suggestions e.g. on StackOverflow or other sites to run PowerShell which copies files later – after emulator is started, but it was not a solution I like.

Is Liskov Substitiuton Principle violated by async pattern?

By Mariusz Krzanowski

On January 8, 2020

In Samples

The async/await keywords change methods behavior. When async/await pattern is used, the method never throws an exception. The method always returns a task which can be eventually Faulted, Canceled or RunToCompletion. So why do I think about violating Liskov Substitution Principle?

Exception filters to catch first thrown exception

By Mariusz Krzanowski

On January 6, 2020

In Solutions

Introduction

This post is inspired by the book ‘C# in depth’ by Jon Skeet and presentation ‘Internals of Exceptions’ made by Adam Furmanek. The topic I want to focus on is stack unwinding when an exception is caught.

Mariusz Krzanowski blog

Month: January 2020

Azure Functions V3 and disappearing function.json files

Introduction

Is Liskov Substitiuton Principle violated by async pattern?

Exception filters to catch first thrown exception

Introduction