In day one, you'll see and work with a practical example of going from no code to a deployed feature.

In day two, you'll learn various techniques for keeping an existing code base clean.

This workshop is an in-person, hands-on companion to the book 

Tools and techniques for writing and maintaining a code base that fits in your head.

Developers who have suffered through a few bad projects.

C# code examples are written in a style friendly to developers working in C#, Java, TypeScript, C++, etc. Hands-on exercises are in C# on .NET Core 3.1. You don’t have to be a professional C# developer, but you should at least feel comfortable trying your hand with C#. You can get assistance during exercises, but we will not have time to cover basics of installation, compilation, syntax, and such.

You'll need a development environment that enables you to work with C# on .NET Core 3.1, a Git client, and (for some exercises) SQL Server Express. If on Windows, Visual Studio Community Edition is a great fit. In general, free versions of those application will be sufficient.

2 Days

Code That Fits in Your Head

.NET

Architecture

Once upon a time, software was simple. You built a website, connected it to a database, and you were done. Then customers started asking for APIs, mobile apps, notification emails, realtime chat… Today, cloud hosting lets us build “elastic” systems – websites that automatically scale up to handle demand; message queues and publish/subscribe patterns to handle spikes in traffic and workload without impacting your end users.

If you’re just starting out with distributed systems design, the possibilities can be overwhelming. APIs, message queueing, REST, GraphQL, gRPC… what should you choose, how does it work, how do you get started?

This workshop gives you a hands-on introduction to the most important messaging patterns used in modern application development. Using C# and .NET, we’ll build a series of small example apps and services, wire them together using these patterns, and discuss how – and when – you’d apply the same patterns in your own applications.

HTTP architectural patterns – XMLRPC, REST, GraphQL

HTTP frameworks: WebAPI, NancyFX, ServiceStack

Working with HTTP APIs: testing and tooling

Exercise: building an HTTP API client and server

Message queueing in .NET – Redis, MSMQ, EasyNetQ

Advanced architectural patterns: CQRS, event sourcing

Exercise: building a pub/sub system using .NET

History of RPC on .NET – SOAP, DISCO, WSDL, WCF

Exercise: high-performance architecture using gRPC

Integrating browsers with distributed systems

Exercise: real-time browser notifications using SignalR

This workshop is aimed at developers with some experience writing applications using C# and Microsoft .NET.

Attendees will be writing and running .NET code during the workshop, so will need a computer running Windows, macOS or Linux, and ideally install the Microsoft .NET SDK from https://dotnet.microsoft.com/download.

Exercises can be done in .NET Framework 4.6+ or .NET Core 2.0+

Introduction to Distributed Systems with C# and .NET

ASP.NET Core 6, gRPC, Protobuf, Visual Studio, .NET CLI, Docker, Kubernetes, services meshes, monitoring, distributed tracing

Day 1: Building gRPC applications in ASP.NET Core

Day 2: Security, Deployment and Observability

Service mesh (using Linkerd as an example)

Attendees will be expected to be familiar with .NET and C#.

Bring a laptop with the following installed:

Visual Studio 2022 or JetBrains Rider EAP or VS Code

Modern distributed systems with gRPC in ASP.NET Core 6

The class is a combination of lectures, security testing demonstrations, code review, and interactive threat modeling discussions. Students will learn the most common threats against applications. More importantly, students will learn how to code secure software via a variety of techniques such as secure design practices, defense-based coding, the use of security libraries and services, and the use of a variety of web security standards.

As part of this course, we will explore the use of third-party security libraries and frameworks to speed and standardize secure development. We will highlight production quality and scalable controls from various languages and frameworks including Java, PHP, Python, Javascript, and .NET, but any developer building web applications and webservices will benefit from this class.

Familiarity with the technical details of building web applications and webservices from a software engineering point of view.

Any laptop that can run an updated web browser and "Burp Community Edition".

Day 1 of the course will focus on web application basics.

Introduction to Security Goals and Threats

Day 2 of the course will focus on API secure coding, Identity, and other advanced topics.

Webservice, Microservice, and REST Security

The course will include several hacking and secure coding labs!

Building Secure API's and Web Applications

Security

Multi-platform, multi-client, and highly-mobile users bring a new set of challenges, so the approaches of the past are no longer appropriate for modern applications. This two-day workshop is your chance to dive into all things security related to these new technologies. Learn how to securely connect native and browser-based applications to your back-ends and integrate them with enterprise identity management systems as well as social identity providers and services.


.NET Core, ASP.NET Core, MVC, Web APIs, Claims, OpenID Connect, OAuth 2.0, WS-Federation, SAML, JSON Web Tokens, Single Sign-on and off, Federation, Delegation, Home Realm, Discovery, CORS

Social Logins (e.g. Google, Facebook, Twitter, etc.)


Attendees will need to bring a computer with the latest .NET Core SDK and the IDE of your choice (e.g. Visual Studio) installed.

Identity & Access Control for modern Applications and APIs using ASP.NET Core 7

If this sounds familiar, then this workshop is for you. We cover both the theory and patterns of Domain-Driven Design, and connect it to code with hands-on examples in .NET 6.

Where DDD fits in to software delivery and what business problems it addresses

How to craft and enforce a ubiquitous language

The role of refactoring in shaping and reshaping our model

How to define bounded contexts and microservices

Realizing a pragmatic implementation with ASP.NET Core 6 and EF Core 6

We spend day 1 on the theory and concepts of DDD and day 2 applying it to a real-world, complex example with hands-on code exercises.

Attendees will need to bring a laptop with the following installed:

Visual Studio 2022 Professional or higher

Domain-Driven Design: Theory and Practice

Microservices

In this workshop, we will introduce you to GraphQL and the major concepts behind it. We will look at how to build a GraphQL server with ASP.NET Core 7 and Hot Chocolate. You will learn how to query GraphQL and what tools are out there that can help you explore and manage large schemas. Further, we will dive into React and explore how to efficiently build fast and fluent web interfaces using the JavaScript client Relay.

.NET, ASP.NET Core, GraphQL, Hot Chocolate, React, Relay

GraphQL client ecosystem in .NET and JavaScript (Apollo vs Relay)

You will need basic knowledge of .NET and JavaScript.

Also, you will need a computer with the .NET 7 SDK, Nodejs LTS, and Visual Studio Code.

Building Modern Apps with GraphQL in ASP.NET Core 7 and React 18

React

The problem is, leveraging ML with IoT has historically meant backhauling all your sensor data to the Cloud. When the cloud is involved, security is a concern, and in the realm of IoT, security is often a dirty word.

In this workshop, you’ll learn how to leverage the power of Machine Learning on Edge Devices and build secure, cloud-independent IoT applications.

Section 1: The Basics of Machine Learning

Session 2: ML models for Complex Data: CNNs and LSTMs

Lab 2: Building a CNN for Image Recognition

Session 1: Introducing the Blues Wireless Ecosystem

Session 2: Working with Sensors and Actuators to collect data

Session 2: ML at the Edge with Single Board Computers (SBCs)

Lab 2: Building ML Models for Edge Inferencing

Session 3: ML at the Edge with Microcontrollers (MCUs)

Lab 4: Building ML Models for Microcontrollers

Session 4: What's next for ML on the Edge?

Lab 1: Hacking Challenge and Free Exploration

Edge Impulse CLI (npm install -g edge-impulse-cli)

Chromium-based web browser (e.g. latest version of Chrome, Edge, Brave)

Set up a free account on Blues Wireless Notehub @ 

Set up a free account on Edge Impulse Studio @ 

NDC { Porto }

Workshops

09:00 - 17:00 (UTC+01)

Introduction to Distributed Systems with C# and .NET

Dylan Beattie

Machine Learning from the Cloud to the IoT

Brandon Satrom

Rob Lauer

Identity & Access Control for modern Applications and APIs using ASP.NET Core 7

Dominick Baier

Anders Abel

Domain-Driven Design: Theory and Practice

Jimmy Bogard

Code That Fits in Your Head

Mark Seemann

Modern distributed systems with gRPC in ASP.NET Core 6

Mark Rendle

Building Secure API's and Web Applications

Jim Manico

Building Modern Apps with GraphQL in ASP.NET Core 7 and React 18

Michael Staib

Martin Artola