To get started with ASP.NET Core in .NET Core 3.0 Preview 9 install the .NET Core 3.0 Preview 9 SDK.

If you’re on Windows using Visual Studio, install the latest preview of Visual Studio 2019.

.NET Core 3.0 Preview 9 requires Visual Studio 2019 16.3 Preview 3 or later. 

Source could be also accessed from GitHub -> https://github.com/fpetru/WebApiMongoDB.

Problem / solution format brings an easier understanding on how to build things, giving an immediate feedback. Starting from this idea, the blog post will present step by step how to build

a web application to store your ideas in an easy way, adding text notes, either from desktop or mobile, with few characteristics: run fast, save on the fly whatever you write, and be reasonably reliable and secure.

This blog post will implement just the backend, WebApi and the database access, in the most simple way. Next blog post will cover the front end, using Angular. Then, there will be an additional article on how to increase the performance and the security. 

This is the first major-version release we’ve had in about three years (Autofac 4.0 was released in August 2016). There are some breaking changes and new features you should know about as you decide your upgrade strategy. Hopefully this will help you navigate those waters. 

MONEY and DECIMAL are useful in the case of values and sums. However, money is not a correct data type in case of division (The result is 0,00009 so it should be rounded to 0,0001). 

<LangVersion>9.0</LangVersion>

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.ComponentModel;

namespace System.Runtime.CompilerServices
{
   /// <summary>
   /// Reserved to be used by the compiler for tracking metadata.
   /// This class should not be used by developers in source code.
   /// </summary>
   [EditorBrowsable(EditorBrowsableState.Never)]
   internal static class IsExternalInit
   {
   }
}

The May release of Visual Studio Code is out, including better IntelliSense, faster step-by-step debugging, and more. 

What about Angular? Angular JS history through the years (2009-2019)  

• Use BindAttribute on the action method 
• Use [Editable] or [BindNever] on the model 
  
• Use two different models 
• Use a base class 
  
• Use ModelMetadataTypeAttribute 
  
• Explicit binding via TryUpdateModelAsync<> 
  

This was a very quick run down of some of the options available to you to prevent mass assignment. Which approach you take is up to you, though I would definitely suggest using one of the latter 2-model approaches. There are other options too, such as doing explicit binding via TryUpdateModelAsync<> but the options I've shown represent some of the most common approaches. Whatever you do, don't just blindly bind your view models if you have properties that should not be edited by a user, or you could be in for a nasty surprise.

And whatever you do, don't bind directly to your EntityFramework models. Pretty please. 

The Kubernetes project plans to deprecate Docker Engine support in the kubelet and support for dockershim will be removed in a future release, probably late next year.  

ReactOS is an open source alternative to the Windows operation system. Even if the first version of ReactOS dates back to 1998, there is still no 'stable' version of ReactOS. May be, the most important reason is a lack of attention