David Fowler @davidfowl Twitter profile

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David Fowler

@davidfowl

2 years

When I got a job at Microsoft, there was an article in the local news paper and my parents framed it.

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David Fowler

@davidfowl

2 years

We got my dad this shirt for Christmas 🔥🔥🔥

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David Fowler

@davidfowl

1 year

I’ve been holding onto this news for over a week, I’ve been promoted to Distinguished Engineer at Microsoft! I feel the need to buy a monocle now 🧐.

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David Fowler

@davidfowl

2 years

I'm now convinced there should be an entire university course on how to work in an existing code base (notice I didn't use the word legacy). The end goal being to make a change to it without breaking the functionality. This would be a senior course. CS401 Software Refactoring.

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David Fowler

@davidfowl

5 months

Engineers: Let's use C# CTO: I don't like Microsoft

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David Fowler

@davidfowl

10 months

.NET 8 is going to be a bombshell of a release 🔥. There are a TON of improvements but one of the things I'm most excited about is better out of the box metrics for our http and networking stack. We're also looing to ship grafana default dashboards #dotnet

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David Fowler

@davidfowl

2 years

Get rid of l33t code interviews, have people debug some code instead. Debugging skills are highly underrated.

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David Fowler

@davidfowl

2 years

In a meeting with 5+ Principal black engineers at Microsoft 😍.

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David Fowler

@davidfowl

8 months

Got my 15 year Microsoft service award

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David Fowler

@davidfowl

4 years

Your .net code does not need 15 projects with a class per command and query. You don’t need an interface for everything either. It’s amazing to read extremely simple samples using .net vs node vs go. It seems our ecosystem is attracted to complexity... #dotnet

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David Fowler

@davidfowl

5 months

C# doesn’t get enough credit for creating async/await 🥲

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David Fowler

@davidfowl

5 months

Is there an undercover boss episode where the CEO of a tech company goes through the interview process and fails the leet code interview?

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David Fowler

@davidfowl

2 years

I’m pretty happy the “brilliant jerk” stereotype is dying in tech… you don’t need to be an asshole to get ahead.

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David Fowler

@davidfowl

6 months

.NET 8 is done #dotnet

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David Fowler

@davidfowl

3 years

Question for software engineers: Would you leave your job because you didn't like the tech stack?

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David Fowler

@davidfowl

2 years

Happy Father’s Day to all the fathers out there! 😍

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David Fowler

@davidfowl

2 years

They did a follow up!

David Fowler

@davidfowl

2 years

When I got a job at Microsoft, there was an article in the local news paper and my parents framed it.

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David Fowler

@davidfowl

3 years

High level IC (individual contributors) should have a support group. Managing the transition from being “just another engineer” to being a “force multiplier by working through others” is tough. Talking to others that have managed that transition is calming.

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David Fowler

@davidfowl

5 months

Visual studio is by far the best IDE on the market.

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David Fowler

@davidfowl

3 years

One of the biggest perks of working from home: Using your own bathroom.

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David Fowler

@davidfowl

7 years

Deleting code is one of most enjoyable things you can do as a software engineer

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David Fowler

@davidfowl

3 years

Want to throw together a quick web application in C#? This is what that will look like in the future. #dotnet #aspnetcore

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David Fowler

@davidfowl

1 year

If you’re a developer, invest in a desktop in 2023. Your laptop isn’t even close…

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David Fowler

@davidfowl

3 years

Tech interviews focus so much time on writing code instead of debugging code. Debugging ability is one of the core skills I look for in more senior engineers.

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David Fowler

@davidfowl

1 year

Does anyone *really* understand CORS? The amount of "allow everything" configuration I see in practice is concerning.

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David Fowler

@davidfowl

2 years

When I spin up a Kubernetes cluster to host index.html.

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David Fowler

@davidfowl

3 years

It’s official. I am an American 🇺🇸

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David Fowler

@davidfowl

3 years

Got a new welcome mat

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David Fowler

@davidfowl

1 year

Remember the JWT in T is token, so a JWT token is a json web token token.

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David Fowler

@davidfowl

10 months

.NET 8's dependency injection container will support "keyed services". A long-requested feature that has finally landed. This is useful when type alone isn't enough to determine the right implementation. #dotnet

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David Fowler

@davidfowl

4 years

Today is my son’s 5th birthday, we had a big party planned but had to cancel due to #COVID19 . Wish him happy birthday!

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David Fowler

@davidfowl

7 years

I'm now the father of a beautiful baby girl 👶🏾

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David Fowler

@davidfowl

2 years

This was a 7 year journey: sudo apt update sudo apt install dotnet6 #dotnet #linux

.NET 6 is now in Ubuntu 22.04 - .NET Blog

.NET 6 is now included in Ubuntu 22.04 (Jammy) and can be installed with just `apt install dotnet6`.

devblogs.microsoft.com

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David Fowler

@davidfowl

1 year

Updated my Todo API sample () to .NET 7 and added lots of new shiny things: - Route grouping - JWT auth - Cleaner integration tests - Open telemetry #dotnet #aspnetcore

GitHub - davidfowl/TodoApi: Todo application with ASP.NET Core Blazor WASM, Minimal APIs and...

Todo application with ASP.NET Core Blazor WASM, Minimal APIs and Authentication - GitHub - davidfowl/TodoApi: Todo application with ASP.NET Core Blazor WASM, Minimal APIs and Authentication

github.com

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David Fowler

@davidfowl

4 years

12 years at Microsoft this week! It's been a wild ride. I've worked on lots of different things all in the .NET and Azure sphere, *almost* left once for the competition. I'm one of the older members on the team now! Time flies when you're having fun. #Microsoft

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David Fowler

@davidfowl

3 years

I got advice from one of my mentors to block out ~8 hours per week, ~3-4 hours at a time, to do deep, focused work. It's important for high level ICs to have that time to do thinking and prototyping/coding. It was some of the best advice I've gotten recently.

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David Fowler

@davidfowl

2 years

Dude is intentionally trying to be the main character on Twitter... Don't give him the attention he's looking for.

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David Fowler

@davidfowl

1 year

This is a great diagram. source #lastpassbreach

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David Fowler

@davidfowl

2 years

When I got promoted to senior software engineer at Microsoft years ago, I remember thinking that other people were smarter than me and should have been promoted first. I thought they would be angry, but they weren’t, quite the opposite. Having good coworkers matters A LOT.

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David Fowler

@davidfowl

5 months

Took my dad to Microsoft today

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David Fowler

@davidfowl

1 year

News article in Barbados about this promotion!

David Fowler

@davidfowl

1 year

I’ve been holding onto this news for over a week, I’ve been promoted to Distinguished Engineer at Microsoft! I feel the need to buy a monocle now 🧐.

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David Fowler

@davidfowl

4 years

I started a discussion with the black engineers in my division about what's currently happening in America as a way to help process everything. I'm angry and sad and feel completely helpless and unproductive today

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David Fowler

@davidfowl

4 years

My posts about technology and .NET will be sporadic. As much as I want to tell your about the cool stuff happening, I also want you to realize that “back to normal” was never an ideal place for black people to begin with.

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David Fowler

@davidfowl

6 months

This is what I’ve been spending time on for the last couple of months. I’m so proud of the team for working hard on this first preview release. Still lots of work to do, but it’s pretty darn cool 😎 #dotnet #CloudNative

Introducing .NET Aspire: Simplifying Cloud-Native Development with .NET 8 - .NET Blog

Introducing .NET Aspire: A cloud ready stack for building observable, production ready, distributed applications

devblogs.microsoft.com

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David Fowler

@davidfowl

3 years

Wearing my .NET 6 shirt #dotnet

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David Fowler

@davidfowl

3 years

Once in your career you should work on a project long enough to see the long-term impact of your decisions. It's a humbling experience.

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David Fowler

@davidfowl

4 years

Merry Christmas from the Fowler family!

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David Fowler

@davidfowl

5 years

Debugging code is such a fundamental developer skill that isn't explicitly taught anywhere (but really should be).

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David Fowler

@davidfowl

6 months

Programming is 3 days of research to write 10 lines of code. #programming

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David Fowler

@davidfowl

2 years

Tip: Starting code reviews by looking at tests is a good way to get a sense of what the change is about (it'll reveal things often hard to spot in the change itself). If there are no tests, stop reviewing and ask for tests.

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David Fowler

@davidfowl

9 months

Collection literals in C# 12 are 😍 #dotent #csharp

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David Fowler

@davidfowl

6 years

The longer I do software development the more I become allergic to complexity.

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David Fowler

@davidfowl

5 months

My main goal isn’t to convince everyone to use C# and .NET (even though that would be nice!), it’s to make sure they are well informed of “the happenings” of the last 10 or so years. Perception changes are a slog.

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David Fowler

@davidfowl

3 years

I prefer coding in JavaScript over C#

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David Fowler

@davidfowl

20 days

No, this is not true.

John Arundel

@bitfield

21 days

The software industry is rapidly converging on just three languages: Go, Rust, and JS. It would be smart to learn one of those really well, and have at least a working acquaintance with the other two.

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David Fowler

@davidfowl

2 years

We spent the last 6 months moving Azure App Service from IIS and nginx to YARP + Kestrel to bring you gRPC and also take advantage of the massive performance improvements in .NET 6 🔥🔥🔥🔥 #dotnet #aspnetcore #azure

A Heavy Lift: Bringing Kestrel + YARP to Azure App Services

In this post, we get a behind-the-scenes look at the engineering work required to change a critical platform component with code paths that are exercised billions of times a day while minimizing...

azure.github.io

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David Fowler

@davidfowl

2 months

Having spent the last 1.5 weeks coding, I appreciate how important it is to block 3-4 hour blocks of time to do deep work. It's extremely hard to get back to focused work when context switching all the time.

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David Fowler

@davidfowl

3 months

So, Safari is the new IE6 of web browsers.

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David Fowler

@davidfowl

6 years

Interesting quote from a talk about microservices

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David Fowler

@davidfowl

2 years

Docker has to be one of the best developers tools/experience in the last 10 years

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David Fowler

@davidfowl

5 months

This is reminder that .NET has been open-source for the last 7 years 🧵: First the runtime. The JIT, type system, garbage collector, base class libraries (aka stdlib) are all here:

GitHub - dotnet/runtime: .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps. - dotnet/runtime

github.com

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David Fowler

@davidfowl

2 years

Remember when we had to use download managers to reliably download anything from the internet?

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David Fowler

@davidfowl

3 years

We just branched for .NET 6 rc1. The main branch is now .NET 7! We're still waiting for feedback and doing bug fixes but we're code complete.

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David Fowler

@davidfowl

2 years

Announcing built-in container support for the .NET SDK #dotnet #aspnetcore

Announcing built-in container support for the .NET SDK - .NET Blog

The .NET 7 SDK can easily build containers from your existing applications through new container image building support.

devblogs.microsoft.com

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David Fowler

@davidfowl

3 years

Hot reload in .NET 6 is gonna be 🔥🔥🔥🔥🔥 #dotnet

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David Fowler

@davidfowl

11 months

What do you find most frustrating about #dotnet via Same mang, same 😭

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David Fowler

@davidfowl

5 years

Ok so I spoke to @ben_a_adams and we’re going to make a repository for the shared knowledge we’ve gained wrt writing performant .NET code. Stay tuned... #dotnetcore #aspnetcore

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David Fowler

@davidfowl

1 year

I enjoy cleaning up messy code. It feels like the equivalent of spring cleaning for developers. Fixing names, adding structure, removing structure, deleting unnecessary code (this is the best one), and simplifying complex code.

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David Fowler

@davidfowl

8 months

This video on dependency injection is really well done

Dependency Injection, The Best Pattern

Try using the attachment service at https://www.patreon.com/codeaestheticYou'll also find deleted scenes, song names and more

www.youtube.com

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David Fowler

@davidfowl

2 years

Talk about compensation with your peers.

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David Fowler

@davidfowl

1 year

I got to say, declaring DTOs is one of the most unenjoyable parts of server-side web programming in strongly typed languages. They are the epitome of boilerplate.

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David Fowler

@davidfowl

3 years

.NET has 4 built-in dictionary/map types: - Hashtable - Dictionary - ConcurrentDictionary - ImmutableDictionary There’s no guidance on when to use what, mostly individual documentation on each implementation. #dotnet

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David Fowler

@davidfowl

1 year

Fun fact: While teaching some students Kubernetes, the lack of networking knowledge hits really hard and pretty immediately. Things that I took for granted and tried to gloss over and weren’t landing initially. Networking isn’t abstracted at all in the cloud. It’s in your face ..

Joy Gao

@joygao

1 year

Docker networking is one of those wild fascinating areas that make you regret not paying attention in your networking class in college. Actually out of all CS taken courses in college, networking is the most useful course IMO.

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David Fowler

@davidfowl

4 years

I think every developer should try out game development. Nothing is more instantly rewarding than writing code that visually moves pixels on a screen.

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David Fowler

@davidfowl

4 years

Here's inspiration for under engineering. Various TODO list backend API examples in .NET Core #dotnetcore #aspnetcore

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David Fowler

@davidfowl

5 years

We’re writing a JSON stack as part of .NET Core 3.0. We’ll have a reader/writer, a JSON DOM and a full serializer. It’s the first JSON parser I’ve seen that supports async without a huge performance hit and I haven’t seen any third party json library do this.

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David Fowler

@davidfowl

3 years

Me and @shanselman showing off the next version of in 2014. I was on a mac at a Microsoft conference, this was big deal back then...

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David Fowler

@davidfowl

3 years

Pro tip: if you’re going to be an asshole when filing issues on GitHub just remember that there are actual people on the other side reading these issues. These people will remember you were an asshole the next time your name shows up anywhere.

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David Fowler

@davidfowl

4 years

The one rule of legacy code is "the last person that touches the code is the new owner."

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David Fowler

@davidfowl

6 months

Every programmer should learn how to read a stack trace or back trace. Do not panic! There's important information in there, learn to read and understand it.

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David Fowler

@davidfowl

2 years

Minimal APIs + OpenTelemetry + Prometheus 🥰 #dotnet #aspnetcore #cloudnative

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David Fowler

@davidfowl

5 years

The stack overflow developer survey results for 2019 are out and .NET Core is at the top of most loved frameworks! #dotnetcore

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David Fowler

@davidfowl

2 years

Wise words from @shanselman for junior devs (really devs of any level), if you want to force yourself to learn a bunch of tech all at once, go host and maintain a public website/web application. The amount of crap you will encounter is insane.

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David Fowler

@davidfowl

3 years

We're making lots of progress on the minimal API experience in .NET 6. Lots of features are finally coming together. #dotnet

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David Fowler

@davidfowl

2 years

Big company tip, before you change roles, ask when the last re-org was.

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David Fowler

@davidfowl

2 years

I'm using switch expressions everywhere #dotnet #csharp

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David Fowler

@davidfowl

4 years

I really want to write an e-book with .NET recipes. The idea would be to show how to implement scenarios combining APIs. Those things are very hard to document. For e.g. How to do multi-tenancy with HttpClient #dotnet

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David Fowler

@davidfowl

2 years

Excited to announce rate limiting support built into .NET! #dotnet #aspnetcore

Announcing Rate Limiting for .NET - .NET Blog

Announcing built-in Rate Limiting support in .NET 7. Rate limiting provides a way to protect a resource to avoid overwhelming your app.

devblogs.microsoft.com

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David Fowler

@davidfowl

3 years

is on the path to 1 BILLION with a B downloads. The entire .NET community should buy @JamesNK a cake, a giant cake and whatever else he demands #dotnet

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David Fowler

@davidfowl

10 months

It's that time again when I drop a .NET code sample with clean, modern new C# features #dotnet #csharp

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David Fowler

@davidfowl

6 months

As part of the work for .NET 8, the team has been rebuilding the popular eshop microservice sample to use all of the new .NET 8 goodies! There’s still lots of cleanup and simplification to do, but come take a look! #dotnet

GitHub - dotnet/eShop: A reference .NET application implementing an eCommerce site

A reference .NET application implementing an eCommerce site - dotnet/eShop

github.com

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David Fowler

@davidfowl

1 year

"Stop overloading JWTs with permission claims" #auth #oidc #oauth

Stop overloading JWTs with permission claims

Here’s why…

sdoxsee.github.io

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David Fowler

@davidfowl

2 years

In .NET 7, we've finished the moving the thread pool to be fully managed. The timer queue and the windows IO thread pool have been moved to managed code. #dotnet RIP the native threadpool:

Remove ThreadPool native implementation by eduardo-vp · Pull Request #71719 · dotnet/runtime

Cleaning up the thread pool native implementation, removing ThreadpoolMgr::UsePortableThreadPool() and ThreadpoolMgr::UsePortableThreadPoolForIO() and assume the calls to those functions to always ...

github.com

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David Fowler

@davidfowl

3 years

For the first time in my career, I'm working with 3 other black people (engineers and PMs) on the same project. It's incredible. #BlackTechTwitter

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David Fowler