After years of writing C#, there are still language features I wish existed. From simpler generic APIs to richer enums and more expressive types, here’s my personal wishlist, grounded in problems I’ve encountered while writing real code.
AutoFixture composes the test context. Bogus makes generated data easier to describe.
Contract-first API design is less about writing YAML first and more about making a shared boundary explicit before implementation decisions harden. This post looks at why that matters when one service is consumed by several independently...
A unit test should show what makes its scenario special. AutoFixture can provide a valid context by default so the Arrange phase only needs to describe the difference.
Keep Refit clients focused by responsibility while exposing one convenient dependency to the rest of the application.
Paying for OSS is not a betrayal of its ideals. The harder problem is funding future maintenance without rewriting the promise attached to what was already given away.
Build, test, version, package, and securely publish a .NET library to NuGet.org using GitHub Actions, MinVer, workflow artifacts, and trusted publishing.
Add strongly typed defaults to the .NET configuration pipeline while keeping the normal precedence and override behavior of other configuration providers.
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
Switching to Native AOT shouldn’t change how you write your business logic. It should change how the Lambda is hosted, built and serialized around it.
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
Constructor injection keeps Minimal API handler tests focused as endpoint dependencies grow.
How to design your code for union types before C# actually supports them.
AWS provides the Lambda runtime primitives. AWSLambdaSharpTemplate V6 adds an opinionated .NET programming model for handlers, scopes, contexts and event-source semantics.
Use NuGet Trusted Publishing with GitHub Actions to publish packages without storing a long-lived API key.
Source generation can remove repetitive service-module registration from ASP.NET Core applications without relying on runtime reflection.
Most ASP.NET Core projects generate OpenAPI from code. This post explores the opposite approach: treating the spec as the source of truth for Minimal APIs.
AWS SSO is a great alternative to static access keys, but expired sessions can break local Aspire startup in confusing ways. Let’s automate renewing a session.
gRPC services and clients rely on protobuf contracts to align on the shape of requests and responses. NuGet can make sharing these contracts more convenient.
Manual registration of Minimal API endpoints can clutter your ASP.NET Core apps. This article explores how to automate it for a cleaner setup.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Tailoring AutoFixture’s customizations to the need of each test can cause a lot of code to be repeated. Let’s avoid that by using generic attributes.
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
Let’s take a look at the Annotation Framework being developed by AWS to streamline the development of Lambda functions in C#.
A guide on how to set up a CI pipeline on CircleCI to build, test, pack and publish a package on NuGet and GitHub Packages.
A quick overview on the new patterns added in C# 10 and C# 11: extended property patterns, list patterns and expanded targets for the constant string pattern.
Lambda functions can be used to quickly respond to events happening in your ecosystem. Being quick isn’t an execuse to give up on best practices.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
Integrating a powerful local emulator of AWS services like LocalStack with Microsoft Tye gives .NET developers a powerful development tool that increases their local productivity.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it. We will use it to test GRPC services.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it.
NUnit constraints can be used when verifying invocations in Moq to create powerful and clear expressions.
Tye is an experimental tool Microsoft is working on to facilitate the development of solutions with many services.
An overview about the different patterns available in C# up to version 9.0 of the compiler, improvements to the to the switch statement and the new switch expression introduced in C# 8.0.
After years of writing C#, there are still language features I wish existed. From simpler generic APIs to richer enums and more expressive types, here’s my personal wishlist, grounded in problems I’ve encountered while writing real code.
AutoFixture composes the test context. Bogus makes generated data easier to describe.
A unit test should show what makes its scenario special. AutoFixture can provide a valid context by default so the Arrange phase only needs to describe the difference.
Add strongly typed defaults to the .NET configuration pipeline while keeping the normal precedence and override behavior of other configuration providers.
Switching to Native AOT shouldn’t change how you write your business logic. It should change how the Lambda is hosted, built and serialized around it.
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
How to design your code for union types before C# actually supports them.
AWS provides the Lambda runtime primitives. AWSLambdaSharpTemplate V6 adds an opinionated .NET programming model for handlers, scopes, contexts and event-source semantics.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Tailoring AutoFixture’s customizations to the need of each test can cause a lot of code to be repeated. Let’s avoid that by using generic attributes.
Let’s take a look at the Annotation Framework being developed by AWS to streamline the development of Lambda functions in C#.
Terraform can use AWS S3 to store the state of each stack. We can use AWS CloudFormation and its CDK to setup the needed resources without giving up on IaC.
A quick overview on the new patterns added in C# 10 and C# 11: extended property patterns, list patterns and expanded targets for the constant string pattern.
Lambda functions can be used to quickly respond to events happening in your ecosystem. Being quick isn’t an execuse to give up on best practices.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
NUnit constraints can be used when verifying invocations in Moq to create powerful and clear expressions.
An overview about the different patterns available in C# up to version 9.0 of the compiler, improvements to the to the switch statement and the new switch expression introduced in C# 8.0.
Contract-first API design is less about writing YAML first and more about making a shared boundary explicit before implementation decisions harden. This post looks at why that matters when one service is consumed by several independently...
Keep Refit clients focused by responsibility while exposing one convenient dependency to the rest of the application.
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
Constructor injection keeps Minimal API handler tests focused as endpoint dependencies grow.
Source generation can remove repetitive service-module registration from ASP.NET Core applications without relying on runtime reflection.
Most ASP.NET Core projects generate OpenAPI from code. This post explores the opposite approach: treating the spec as the source of truth for Minimal APIs.
AWS SSO is a great alternative to static access keys, but expired sessions can break local Aspire startup in confusing ways. Let’s automate renewing a session.
gRPC services and clients rely on protobuf contracts to align on the shape of requests and responses. NuGet can make sharing these contracts more convenient.
Manual registration of Minimal API endpoints can clutter your ASP.NET Core apps. This article explores how to automate it for a cleaner setup.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it. We will use it to test GRPC services.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it.
AutoFixture composes the test context. Bogus makes generated data easier to describe.
A unit test should show what makes its scenario special. AutoFixture can provide a valid context by default so the Arrange phase only needs to describe the difference.
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
Constructor injection keeps Minimal API handler tests focused as endpoint dependencies grow.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Tailoring AutoFixture’s customizations to the need of each test can cause a lot of code to be repeated. Let’s avoid that by using generic attributes.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it. We will use it to test GRPC services.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it.
NUnit constraints can be used when verifying invocations in Moq to create powerful and clear expressions.
Switching to Native AOT shouldn’t change how you write your business logic. It should change how the Lambda is hosted, built and serialized around it.
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
AWS provides the Lambda runtime primitives. AWSLambdaSharpTemplate V6 adds an opinionated .NET programming model for handlers, scopes, contexts and event-source semantics.
AWS SSO is a great alternative to static access keys, but expired sessions can break local Aspire startup in confusing ways. Let’s automate renewing a session.
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
Terraform can use AWS S3 to store the state of each stack. We can use AWS CloudFormation and its CDK to setup the needed resources without giving up on IaC.
Lambda functions can be used to quickly respond to events happening in your ecosystem. Being quick isn’t an execuse to give up on best practices.
Integrating a powerful local emulator of AWS services like LocalStack with Microsoft Tye gives .NET developers a powerful development tool that increases their local productivity.
When collaborating across different organizations or simply across different teams, environment configuration values can differ. This post shows how the Terraform configuration can be customized to align personal and target environments.
How to access AWS services from within a devcontainer via AWS SDK, AWS CLI or AWS Toolkit
AutoFixture composes the test context. Bogus makes generated data easier to describe.
A unit test should show what makes its scenario special. AutoFixture can provide a valid context by default so the Arrange phase only needs to describe the difference.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Tailoring AutoFixture’s customizations to the need of each test can cause a lot of code to be repeated. Let’s avoid that by using generic attributes.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it. We will use it to test GRPC services.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it.
NUnit constraints can be used when verifying invocations in Moq to create powerful and clear expressions.
A small publishing automation started with Jekyll’s stateless builds and somehow ended with a generic event routing runtime.
How I created this blog: how I installed the Minimal Mistakes theme and customized a bit
How I created this blog: how I created my site using Jekyll CLI and initial configuration
How I created this blog: how I set up Visual Studio Code to work with my Jekyll site
How I created this blog: how I set up and configured the repository backing this blog
How I created this blog: how I set up and configured the hosting of this blog on GitHub Pages
How I created this blog: which tools and products I decided to use.
Managing roughly 25 GitHub repositories was becoming a maintenance problem. Here’s how a growing script turned into Octosmith, a declarative tool for aligning repository configuration without requiring uniformity.
A guide on how to set up a CI pipeline on CircleCI to build, test, pack and publish a package on NuGet and GitHub Packages.
Currently the GitHub CLI has no supported release for Windows ARM. This guide shows the necessary steps to build and install the GitHub CLI on a computer running Windows 10 ARM like the Surface PRO X.
GitHub exposes most of its functionalities via its CLI, including a raw access to the API. This can be used to query all owned repositories and use the result to automatically clone them.
How I created this blog: how I set up and configured the repository backing this blog
How I created this blog: how I set up and configured the hosting of this blog on GitHub Pages
How I created this blog: which tools and products I decided to use.
Switching to Native AOT shouldn’t change how you write your business logic. It should change how the Lambda is hosted, built and serialized around it.
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
AWS provides the Lambda runtime primitives. AWSLambdaSharpTemplate V6 adds an opinionated .NET programming model for handlers, scopes, contexts and event-source semantics.
Let’s take a look at the Annotation Framework being developed by AWS to streamline the development of Lambda functions in C#.
Lambda functions can be used to quickly respond to events happening in your ecosystem. Being quick isn’t an execuse to give up on best practices.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
Keep Refit clients focused by responsibility while exposing one convenient dependency to the rest of the application.
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
AWS provides the Lambda runtime primitives. AWSLambdaSharpTemplate V6 adds an opinionated .NET programming model for handlers, scopes, contexts and event-source semantics.
Source generation can remove repetitive service-module registration from ASP.NET Core applications without relying on runtime reflection.
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
An MCP server, a secure tunnel, and a personal access token. What could go wrong? A Halloween horror story about shadow IT and security.
Use NuGet Trusted Publishing with GitHub Actions to publish packages without storing a long-lived API key.
AWS SSO is a great alternative to static access keys, but expired sessions can break local Aspire startup in confusing ways. Let’s automate renewing a session.
Bypassing JWT validation in .NET integration tests with custom tokens and a test-only authentication setup.
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
Contract-first API design is less about writing YAML first and more about making a shared boundary explicit before implementation decisions harden. This post looks at why that matters when one service is consumed by several independently...
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
Constructor injection keeps Minimal API handler tests focused as endpoint dependencies grow.
Most ASP.NET Core projects generate OpenAPI from code. This post explores the opposite approach: treating the spec as the source of truth for Minimal APIs.
Manual registration of Minimal API endpoints can clutter your ASP.NET Core apps. This article explores how to automate it for a cleaner setup.
An MCP server, a secure tunnel, and a personal access token. What could go wrong? A Halloween horror story about shadow IT and security.
Managing roughly 25 GitHub repositories was becoming a maintenance problem. Here’s how a growing script turned into Octosmith, a declarative tool for aligning repository configuration without requiring uniformity.
Contract-first API design is less about writing YAML first and more about making a shared boundary explicit before implementation decisions harden. This post looks at why that matters when one service is consumed by several independently...
A small publishing automation started with Jekyll’s stateless builds and somehow ended with a generic event routing runtime.
Residuality Theory gave names and structure to architectural habits I had developed over years: walking a problem repeatedly, challenging assumptions, and designing with uncertainty in mind.
AI is taking over some of the work that helped previous generations of software engineers develop their judgment. If those opportunities diminish, how will today’s juniors become tomorrow’s seniors?
AI doesn’t just make writing code cheaper. It can also make architectural exploration cheaper, letting us investigate questions we previously wouldn’t have had time to pursue.
Early-career developers can easily mistake short-term productivity for progress. Growing into a senior also requires context, relationships, judgment, and exposure to how experienced engineers think.
AI helped me publish far more frequently by removing friction from how I develop and refine ideas, while keeping the filters, structure, and review that determine whether a post is worth publishing.
Paying for OSS is not a betrayal of its ideals. The harder problem is funding future maintenance without rewriting the promise attached to what was already given away.
Lambda functions can be used to quickly respond to events happening in your ecosystem. Being quick isn’t an execuse to give up on best practices.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
Integrating a powerful local emulator of AWS services like LocalStack with Microsoft Tye gives .NET developers a powerful development tool that increases their local productivity.
Tye is an experimental tool Microsoft is working on to facilitate the development of solutions with many services.
Build, test, version, package, and securely publish a .NET library to NuGet.org using GitHub Actions, MinVer, workflow artifacts, and trusted publishing.
Use NuGet Trusted Publishing with GitHub Actions to publish packages without storing a long-lived API key.
gRPC services and clients rely on protobuf contracts to align on the shape of requests and responses. NuGet can make sharing these contracts more convenient.
A guide on how to set up a CI pipeline on CircleCI to build, test, pack and publish a package on NuGet and GitHub Packages.
Source generation can register injectable Minimal API endpoint classes and map their routes without runtime scanning or manual composition.
Source generation can remove repetitive service-module registration from ASP.NET Core applications without relying on runtime reflection.
Most ASP.NET Core projects generate OpenAPI from code. This post explores the opposite approach: treating the spec as the source of truth for Minimal APIs.
Manual registration of Minimal API endpoints can clutter your ASP.NET Core apps. This article explores how to automate it for a cleaner setup.
Managing roughly 25 GitHub repositories was becoming a maintenance problem. Here’s how a growing script turned into Octosmith, a declarative tool for aligning repository configuration without requiring uniformity.
A small publishing automation started with Jekyll’s stateless builds and somehow ended with a generic event routing runtime.
Paying for OSS is not a betrayal of its ideals. The harder problem is funding future maintenance without rewriting the promise attached to what was already given away.
Build, test, version, package, and securely publish a .NET library to NuGet.org using GitHub Actions, MinVer, workflow artifacts, and trusted publishing.
How to access AWS services from within a devcontainer via AWS SDK, AWS CLI or AWS Toolkit
How I created this blog: how I set up Visual Studio Code to work with my Jekyll site
How I created this blog: which tools and products I decided to use.
How to access AWS services from within a devcontainer via AWS SDK, AWS CLI or AWS Toolkit
How I created this blog: how I set up Visual Studio Code to work with my Jekyll site
How I created this blog: which tools and products I decided to use.
Currently the GitHub CLI has no supported release for Windows ARM. This guide shows the necessary steps to build and install the GitHub CLI on a computer running Windows 10 ARM like the Surface PRO X.
GitHub exposes most of its functionalities via its CLI, including a raw access to the API. This can be used to query all owned repositories and use the result to automatically clone them.
How I created this blog: how I set up and configured the repository backing this blog
Learn how to use IAM roles to secure AWS applications in development with ASP.NET Core. Enhance security with limited permissions and IAM roles.
Terraform can use AWS S3 to store the state of each stack. We can use AWS CloudFormation and its CDK to setup the needed resources without giving up on IaC.
When collaborating across different organizations or simply across different teams, environment configuration values can differ. This post shows how the Terraform configuration can be customized to align personal and target environments.
Build, test, version, package, and securely publish a .NET library to NuGet.org using GitHub Actions, MinVer, workflow artifacts, and trusted publishing.
Use NuGet Trusted Publishing with GitHub Actions to publish packages without storing a long-lived API key.
A guide on how to set up a CI pipeline on CircleCI to build, test, pack and publish a package on NuGet and GitHub Packages.
AutoFixture composes the test context. Bogus makes generated data easier to describe.
A unit test should show what makes its scenario special. AutoFixture can provide a valid context by default so the Arrange phase only needs to describe the difference.
Tailoring AutoFixture’s customizations to the need of each test can cause a lot of code to be repeated. Let’s avoid that by using generic attributes.
A small publishing automation started with Jekyll’s stateless builds and somehow ended with a generic event routing runtime.
Build, test, version, package, and securely publish a .NET library to NuGet.org using GitHub Actions, MinVer, workflow artifacts, and trusted publishing.
Use NuGet Trusted Publishing with GitHub Actions to publish packages without storing a long-lived API key.
How I created this blog: how I set up and configured the hosting of this blog on GitHub Pages
How I created this blog: which tools and products I decided to use.
A quick overview on the new patterns added in C# 10 and C# 11: extended property patterns, list patterns and expanded targets for the constant string pattern.
An overview about the different patterns available in C# up to version 9.0 of the compiler, improvements to the to the switch statement and the new switch expression introduced in C# 8.0.
Integrating a powerful local emulator of AWS services like LocalStack with Microsoft Tye gives .NET developers a powerful development tool that increases their local productivity.
Tye is an experimental tool Microsoft is working on to facilitate the development of solutions with many services.
gRPC services and clients rely on protobuf contracts to align on the shape of requests and responses. NuGet can make sharing these contracts more convenient.
The WebApplicationFactory can be used to create an instance of an ASP.NET Core application hosted within the test process and execute all the tests against it. We will use it to test GRPC services.
Add strongly typed defaults to the .NET configuration pipeline while keeping the normal precedence and override behavior of other configuration providers.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
Managing roughly 25 GitHub repositories was becoming a maintenance problem. Here’s how a growing script turned into Octosmith, a declarative tool for aligning repository configuration without requiring uniformity.
Terraform can use AWS S3 to store the state of each stack. We can use AWS CloudFormation and its CDK to setup the needed resources without giving up on IaC.
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Testcontainers and Respawn can make testing ASP.NET Core endpoints using Entity Framework Core easier and more reliable.
Reliably testing components using Entity Framework Core can be quite problematic. Targeting a real database comes with its own challenges. Let’s solve that!
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
AWS SSO is a great alternative to static access keys, but expired sessions can break local Aspire startup in confusing ways. Let’s automate renewing a session.
Contract-first API design is less about writing YAML first and more about making a shared boundary explicit before implementation decisions harden. This post looks at why that matters when one service is consumed by several independently...
Most ASP.NET Core projects generate OpenAPI from code. This post explores the opposite approach: treating the spec as the source of truth for Minimal APIs.
NUnit constraints can be used when verifying invocations in Moq to create powerful and clear expressions.
Integrating a powerful local emulator of AWS services like LocalStack with Microsoft Tye gives .NET developers a powerful development tool that increases their local productivity.
Lambda functions are an incredible tool but it can be tiresome to align its programming model to that of other .NET tools. That can be fixed!
A guide on how to set up a CI pipeline on CircleCI to build, test, pack and publish a package on NuGet and GitHub Packages.
gRPC services and clients rely on protobuf contracts to align on the shape of requests and responses. NuGet can make sharing these contracts more convenient.
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...
Lambda functions created with Kralizek.Lambda.Templates can expose invocation, record and source-specific telemetry before application code adds a single span. Here is how that telemetry fits into OpenTelemetry locally with Aspire and wh...