CODE Magazine’s lead article this month features Vassili Kaplan demonstrating how compiling scripts improves their performance. Also, Sahil Malik digs into the Azure CLI to demonstrate how to manage Azure resources from the command line; Paul D. Sheriff continues his series on building WPF business applications; Ashleigh Lodge shares how to make sure people with disabilities can access your website too and Shawn Wildermuth discusses simplifying Vue.js state management using Vuex. These, and other great articles, complete this first issue of 2020. Enjoy!

AI, .NET MAUI, Threading and Concurrency in C#, ARIA Best Practices
The cover story by Jason Murphy explores the fascinating intersection of AI and game development, detailing the recreation of the classic Asteroids game using ChatGPT-4. Complementing this, Sahil Malik's article delves into offline AI applications, emphasizing data privacy and security. This issue also features in-depth technical content, including Paul Sheriff's exploration of .NET MAUI data entry controls and binding, and Joydip's comprehensive guide to threading and concurrency in C#. Ashleigh Lodge contributes a thought-provoking piece on web accessibility, challenging common assumptions about ARIA usage.

VS Code productivity tips, .NET MAUI, Kubernetes, outbox pattern, Semantic Kernel

Sahil Malik dives into advanced features of Visual Studio Code, enhancing productivity with robust Git integration and remote development capabilities. Paul Sheriff continues his series on .NET MAUI, focusing on styles, navigation, and reusable UI components for consistent and efficient application development. Wei-Meng Lee provides a comprehensive guide to container orchestration with Kubernetes, making it accessible for developers and system administrators. Joydip Kanjilal discusses the outbox pattern with Kafka and C#, ensuring data consistency in microservices architectures. Finally, Mike Yeager shares advanced topics in Semantic Kernel, highlighting the evolution of a Copilot system using GPT-4 and automatic function calling for efficient application development.

.NET MAUI, VS Code Tips and Tricks, development for spatial applications using .NET, using AOP to optimize performance and and store performance metadata in a database.
Sahil has performance tips for Visual Studio Code, Microsoft’s free open-source workhorse.
Paul D. Sheriff begins an article series about .NET MAUI, designed by Microsoft to build UI and business layer for mobile and desktop applications. Edward walks through how head-mounted display (HMD) technologies found in Meta Quest 3 platform's use of Android OS and support for .NET stacks makes it particularly accessible for deploying flat applications in spatial computing. Joydip looks at how AOP (aspect-oriented programming) can help you optimize performance and store performance metadata in a database. Markus talks about "modern development" or what has happened since about 2008.

In this issue of CODE Magazine with a data theme, Paul Sheriff discusses manipulating and serializing JSON in .NET, Julie Lerman discusses ComplexProperty mapping in EF Core 8, and Kevin Goff highlights essential skills for database developers. This issue also includes articles about the evolution of Web APIs: SOAP to REST to GraphQL, a look at Azure Migrate for .NET applications,  the importance of asynchronous programming in JavaScript, and more.

Serializing JSON in .NET, ComplexProperty mapping in EF Core 8,  the Azure Migrate application and code assessment feature, evolution of Web APIs: SOAP to REST to GraphQL

Large Language Models, passkey authentication, Flowise, Semantic Kernel, Aspire framework, performance. 
Three articles in this issue of CODE discuss Large Language Models. Philipp Bauer discusses open-source LLMs and how a company might choose one to run internally to address issues of safety of customer data, compliance and intellectual property. Wei-Meng writes about Flowise, a low-code/no code drag-and-drop tool used to visually prototype and build LLM apps without writing code. Mike continues his tutorial from the last issue of CODE to demonstrate using Semantic Kernal. Other great articles in this issue cover passkey authentication, the Aspire framework, distributed caching and how to use C# for building high-performance systems.

The collection of articles spans diverse aspects of software development and technology. Sahil Malik's exploration of web API authentication underscores the intricacies involved in validating access tokens, focusing on identity, security, and best practices. Paul Sheriff provides practical guidance on XML serialization and validation in .NET 6/7, covering rules, control mechanisms, and effective usage for C# objects. Kevin Goff delves into SQL Server data handling, offering recommendations and insights into various scenarios, including subqueries, logging, and handling null values. Shawn Wildermuth introduces "Bun," a JavaScript tool with potential revolutionary impact, emphasizing its speed, compatibility, and support for server-side JavaScript development. Lastly, Mike Yeager introduces Semantic Kernel (SK), an open-source AI framework for .NET, highlighting its role in abstracting large language models, handling complex implementations, and aiding user-generated content integration.

This issue celebrates 30 years of CODE, the company behind CODE Magazine, CODE Framework, CODE Training, CODE Staffing and CODE Staffing. Founder Markus Egger is pleased we're all along for CODE's journey. In more technical articles, Sahil writes about web app authentication in OIDC. Paul digs into XML as a data source if you are not familiar with it. Ashleigh encourages small fixes that have big payoffs to improve accessibility. Mike describes how we use machine learning at CODE Magazine to process spam. And more...
OIDC, LINQ to XML, PHP Laravel with Server-Sent Events and OpenAI Chat, make websites more accessible

Entra ID, Node.js, Domain-driven design, server-sent events (SSE), Vite, Token Authentication, secure Copilot applications, ML
In this issue, Sahil discusses Azure AD security pitfalls, like redirect URIs and token validation. Paul outlines building websites with Node.js, using Mustache for dynamic pages and CORS setup. Julie explains using bounded context in Domain-Driven Design for complex filtering software. Joydip delves into real-time ASP.NET Core web apps with Server-Sent Events (SSE). Shawn guides integrating Progressive Web App (PWA) capabilities via Vite. Markus explores Copilot techniques, including secure chatbots. Mike demonstrates machine learning for email spam classification. And more!

Covered Topics:  GraphQL, microservices, using ChatGPT APIs and services, Node.js and Express.
Several of the articles in this issue focus on OpenAI and ChatGPT (and other generative technologies) specifically. How will smart developers create applications that integrate with ChatGPT? This issue will describe some of that.
Also, in this second article of his new series, Paul Sheriff's article is about moving hard-coded values from the code into a configuration file and reading those settings into a Node.js and Express application. And in
Joydip's article, you'll get an overview of GraphQL, its features and benefits, and how it compares and contrasts with REST and gRPC.

Chrome DevTools,JavaScript, Node.js, Express, Moq, C# 9 source generators
Sahil explains various Chrome DevTools features like finding unused JavaScript, debugging multi-threaded JavaScript code, and conditional breakpoint in JavaScript. Paul Sheriff teaches how to create server-side web pages and web APIs using Node.js and Express. Elliot demonstrates the use of Moq for mocking in software development. Jason shows how to use C# 9 "source generators" to generate new code during the compilation process to eliminate repetitive tasks and improve application performance.

Snowflake, SQL Server, Kubernetes security, Razor Pages for ASP.NET Web Forms developers, EF Core 7 updates, Chrome browser Dev tools.
Rod's feature story about Snowflake is a tour through the great features of this cloud database; he thinks it is a game changer for developers. Alex Priker's article about ways to make Kubernetes more secure is fantastic and much needed. If you have ASP.NET Web Forms experience, Shawn Wildermuth writes that Razor Pages is a good migration path for your skills. Paul Sheriff demonstrates how to use the GetScema() method to create your own SQL Compare utility. Julie Lerman to demonstrate more great features in EF Core 7. Plus other great articles.

In the cover article about smart contracts, Wei-Meng will help developers understand many terms in blockchains. Paul Sheriff demonstrates the most frequently used data annotations in .NET. Sahil talks about some of the most secure technologies in modern encryption. In Bilal's article about PHP Larvel, he discusses middleware and how to create routes and group routes. Meanwhile, Joydip will help you learn about OpenTelemetry and how to use it.
data annotations, middleware and routes in PHP Laravel, smart contracts in blockchains, OpenTelemetry

In the cover article about Polars DataFrame library, you'll learn how to use Polars and why you want to use it instead of Pandas for working with large datasets. Other great articles in this issue include Sahil Malik's suggestions for security enhancements for web applications. Paul D. Sheriff finishes his series by teaching you to write wrappers about ADO.NET to significantly reduce the amount of code you have to write to perform CRUD operations. Bilal describes how the PHP Laravel framework implements Dependency Injection and how Laravel's IoC Container implements Zero Configuration Resolution. Alex Pirker walks through how using the Model-View-Presenter-ViewModel helps you split up the responsibilities of the ViewModel, making your code more maintainable, easier to test, easier to extend and easier to reuse. Joydip demonstrates using gRPC using Google's Protocol Buffers to help serialize and deserialize data using Protobug.Net with .NET 6. There's a lot in this issue. And here's a cool fact: our cover was created using the AI tool named DALL-E 2.
* Polars DataFrame library
* Security enhancements for web applications
* Using wrappers with ADO.NET to reduce the amount of code you write to perform CRUD operations
* How Laravel's IoC Container implements Zero Configuration Resolution

This issue is packed with great articles. In our cover story, Jeremy Miller's article about Event Sourcing and CQRS with Marten makes a business case for when a relational database isn't your best option and why you want to consider alternatives. In Sean Wildermuth's article about YARP, you'll learn how to set up and configure reverse proxies to improve performance of microservices. Sahil describes how an application can securely trust a user's identity using modern software and FIDO2 with Auth in Azure. In his story about how to set up benchmarks in Visual Studio 2022, Joydip teaches you how to create baselines, and then execute many types of benchmarks and interpret the results. Plus, learn to use PowerBI in data analytics and learn to create Cloud Native Buildpacks container images without a Dockerfile. And more...

This issue about software languages is fascinating. Joydip explores new types in C# 7.2 to make working with large amounts of data faster. Bilal discusses how to use views and controllers in PHP Laravel. Shawn Wildermuth writes about how to overcome problems with large JavaScript applications by using TypeScript. Wei-Meng walks through examples of how to create dashboards and charts of complex data using Grafana. Bob demonstrates how to bring the power of .NET Framework to Microsoft 365 applications using Accelerate Visual Scheme for Applications (VSA), which you can use to create user-defined functions and more in Excel for Microsoft 365.
* Enhancements to manage memory in C#
* Overcome downsides to weak types in JavaScript by using TypeScript
* Use Accelerate Visual Scheme for Applications (VSA) to create user-defined functions in Excel in Microsoft 365
* Create reusable wrappers to make it easier to work with ADO.NET in .NET 6
* Use Grafana to create charts and dashboards of complex data

In our cover story, Jeremy D. Miller shows how to make some applications perform faster using the open source Marten library. Author Shawn Wildermuth illustrates how to access Cosmos DB from a .NET Core project using .NET Core Cosmos DB library.
Tracking chages in EF Core, Azure Cache for Redis, Accessing Cosmos DB from a .NET Core project, Building MVC application in PHP Larvel and much more!Bilal starts a new series, demonstrating how to build MVC applications in PHP Laravel, while Wei-Meng Lee's article is a hands-on walk through of how facial recognition works and how to train models to recognize images. Julie Lerman discusses change tracking in EF Core and Sahil discusses some info about how blockchains work. Joydip Kanjilal offers a deep dive on cashing and how to work with Azure Cache for Redis in ASP.NET Core 6.0. Paul Sheriff demonstrates how to use router classes to better maintain minimal Web APIs.

Git
Improving MVC applications with JavaScript and jQuery
PHP Laravel on the Google Cloud Platform
Security in Microservices
Docker dev environments
BFF (back-end for front-end) pattern
Sahil demonstrates more features of Git, this time covering Stash, using remote effectively to improve collaboration, forking and merging (the happy path), triangular workflow (using upstream) and managing/resolving conflicts. 
Paul finishes his series on improving your MVC application with a little JavaScript and jQuery. Mike walks through the current state for using Data and Time types from SQL Server in .NET code. Bilal completes his series on using PHP Laravel on the Google Cloud Platform.
If you've wondered how to make microservices more secure, Alexander Pirker has a very approachable process to follow. Julie covers how to set up Docker development environments. Joydip walks through the benefits of using the BFF (back-end for front-end) pattern in ASP.NET 6 Core.

In the cover article, Joydip provides a deep dive into how to work with Apache Kafka to manage messaging in ASP.NET 6 Core. Sahil Malik discusses Git and how to get started with Git. Paul D. Sheriff gives us part three of his series on MVC applications with JavaScript and jQuery; this one describes how to code Web API calls that you can call from an application to avoid post-backs. Mike discusses what drives complexity in software development and how teams can work together better to manage complexity. Bilal takes the PHP Laravel project created in his previous article and shows how to connect to a local MySQL database, then push the application to the Google Cloud and connect to the Google Cloud SQL service. Plus much more.

In this issue's cover story, Wei-Meng Lee introduces you to Bokeh, a Python library for creating interactive visualizations for Web browsers. It is a fascinating read. Haidar starts a new series of articles, on deploying a PHP Laravel application on Google Cloud Platform (GCP). He fills a significant gap in Google's own documentation. Shawn writes about modern JavaScript. Joydip walks through several patterns you can follow to build resilient applications using microservices architecture. Helen explores DAX and its functions and operators to combine to build formulas and expressions, which you can use in PowerBI. Sahil writes about basic algorithms everyone who writes software should know. Paul continues his series on MVC applications, and more. Enjoy!

In the lead article, Alexander Pirker talks about Efficient Microservice Development with .NET 5. Securely storing data in Azure can be challenging; fortunately, Sahil Malik demonstrates what you need to know in his Securing Azure Storage article. Paul Sheriff teaches you how to Enhance Your MVC Applications Using JavaScript and jQuery in Part 1 of this multi-part series. Michael Manning and Robert "RSnake" Hansen offer tips to modify your website to optimize for SEO and how to target more technical customers. Check out the entire issue for much more...

In the lead article, Rod Paddock walks you through creating Command Line Utilities in C# and Python. Sahil Malik introduces you to the Microsoft Graph, what it is and why you would use it in his Let’s Talk About Microsoft Graph article. Julie Lerman continues her series on securing your applications in her Eliminate Secrets from Your Applications with Azure Managed Identity article. Helen Wall demonstrates how you can use Power BI and R to create attention grabbing data visualizations. Check out the entire issue for much more...

In the lead article, Vinay Gaba provides you with a introduction to Jetpack Compose, Android’s modern toolkit for building native UI. Sahil Malik shares some of the tips and tricks he finds useful on the Unix terminal. Mike Yeager introduces you to creating native, cross-platform desktop applications with Photino. Making things look good on the web isn’t always easy. Shawn Wildermuth introduces you to Tailwind CSS, a popular CSS framework, and how you can use it to create professional looking web pages. Bilal Haidar introduces you to Nuxt.js, a framework that builds on top of the Vue.js framework. That just scratches the surface. Check out the entire issue for much more...

Docker, .NET 5, REST, EntityFramework, Vue

In the lead article, Wei-Meng Lee introduces you to containerization using Docker educating you about what it is, why it's used, how it works and how to leverage it in your next development project. Sahil Malik follows up on the containerization theme with his article about deploying a real-world ExpressJS application. Also in this issue, Julie Lerman explores how to access EF Core 5's metadata and Jason Beres takes a look at the hand-off process between designers & developers and how to improve it. That's just a start. Check out the entire issue for much more...

Azure Data Explorer, Vue3, AWS Amplify, Web Workers in JavaScript, creating plug-ins using Vue3 Provide/Inject API
Julie Lerman leads a developer's exploration into Azure Data Explorer (and what it might do with big data) - if you've wondered what's in it but have hesitated because of the cost, Julie offers an inexpensive overview.
Shawn digs into many details with routing in Vue3 including RouterView, RouterLinks, Route Parameters and more.
Nader shows the big picture of how to use AWS Amplify to develop your first AWS application.
Miguel teaches you the how to use Web Workers to do multi-threaded development in Web applications using JavaScript.
Let Bilal Haidar's article help you get started building plug-ins using Vue 3’s Provide/Inject API. 
And if you like cats in your sample data, 3 examples in this issue feature cats. Meow!

In our lead article this month Wei-Meng Lee introduces you to the Go language and shares why companies are flocking to it. Paul Sheriff explores geolocation and working with Google Maps, Editor Rod Paddock talks about the challenges we face today in the shadow of COVID-19 and the temporary and more lasting changes in the “new normal”, CODE Publisher Markus Egger shares part 2 of his interview with Microsoft Regional Director, Dr. Neil Roodyn, and that’s not even half of the magazine! We hope you enjoy this issue.

In our lead article this month Otto Dobretsberger discusses building applications with client-side Blazor. Additionally, Sahil Malik introduces you to Progressive Web Applications (PWAs), Richard Campbell shares the fascinating history of open source at Microsoft, Kevin Goff continues his series on analytic reporting using COVID-19 data, Joydip Kanjilal explores localizing ASP.NET Core applications and much more awaits you this issue!

Our current issue, while still not available in print, is packed with information. In fact, we added an extra 8 pages of content! We lead off with an article about using Amazon (AWS) Lambdas to host ASP.NET Core apps. We cover the MVVM Pattern in MVC Core. We talk about Identity and Security. We take a look at what’s new in Vue 3, and much more!

CODE Magazine is staying home! We had to change our plans on short notice due to the Coronavirus crisis. Markus Egger (CODE Magazine's publisher) talks about the effects of the recent events on CODE Magazine in this issue’s editorial.  Articles in this issue cover topics from AWS and .NET Core to SwiftUI and much more.

Hulu’s new show Devs, which features a story line that centers around software developers, is our focus this month. In the sci-fi tech thriller, a software engineer believes her employer had her boyfriend killed! Join Rod Paddock as he shares his set visit experience meeting some of the actors, watching scene filming and being granted an interview with creator-writer-director Alex Garland! Keep a close eye during the series for CODE Magazine’s appearance! Also this month John Petersen delves into JavaScript testing inside Visual Studio Code, Sahil Malik shares how to manage complex Azure infrastructure and a sad note, Ted Neward has decided “it’s time” and writes his final CODE editorial. All this and more awaits you this issue!

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CODE Magazine is the leading independent magazine for software developers.  We specialize in delivering in-depth article by authors who have real-world software development experience.   Regular topics include:
*.NET Development
*HTML5, CSS and JavaScript Development
*ASP.NET Development; MVC and WebForms
*XAML Development: WPF, WinRT (Windows 8.x), etc.
**CODEFramework 
*Mobile Development: iOS, Android & Windows Phone
*Cloud Development
*Database Development
*Architecture

**CODE Framework is free and open-source available from CODEPlex.  Our framework boasts a large list of components that assist developers with common aspects of application development including simplified SOA, WPF, data access and much more.




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CODE Magazine - January - February 2020

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