Ray Fan rayrfan

Authentication and Authorization

Authentication means determining who a particular user is. Authorization means applying rules about what they can do. Blazor contains features for handling both aspects of this.

It worth remembering how the overall goals differ between server-side Blazor and client-side Blazor:

Server-side Blazor applications run on the server. As such, correctly-implemented authorization checks are both how you determine which UI options to show (e.g., which menu entries are available to a certain user) and where you actually enforce access rules.
Client-side Blazor applications run on the client. As such, authorization is only used as a way of determining what UI options to show (e.g., which menu entries). The actual enforcement of authorization rules must be implemented on whatever backend server your application operates on, since any client-side checks can be modified or bypassed.

Authentication-enabled templates for Server-Side Blazor

Why sequence numbers should relate to code line numbers, not execution order

Or in other words, why you should hard-code sequence numbers, and not generate them programmatically.

Unlike .jsx files, .razor/.cshtml files are always compiled. This is potentially a great advantage for .razor, because we can use the compile step to inject information that makes things better or faster at runtime.

A key example of this are sequence numbers. These indicate to the runtime which outputs came from which distinct and ordered lines of code. The runtime uses this information to generate efficient tree diffs in linear time, which is far faster than is normally possible for a general tree diff algorithm.

Example

Expose IIS or IISExpress running in a Parallels Windows 7/8 VM to your OS X host

Rename your virtual machine

In your Windows 7/8 VM, go to Control Panel > System > Advanced system settings > Computer Name and click Change. Name this whatever you like, e.g. windows. Restart your VM.

Add an ACL rule

Open CMD or Powershell as administrator. Add a URL ACL entry for your new name on the port of your choice, e.g.
netsh http add urlacl url=http://windows:8080/ user=everyone

Add a firewall rule

Branching

Quick Legend

Description, Instructions, Notes

Instance	Branch

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using Microsoft.EntityFrameworkCore;

	namespace EFSampleApp
	{
	public class Program
	{
	public static void Main(string[] args)

	# ASP.NET Core
	# Build and test ASP.NET Core projects targeting .NET Core.
	# Add steps that run tests, create a NuGet package, deploy, and more:
	# https://docs.microsoft.com/azure/devops/pipelines/languages/dotnet-core

	pool:
	vmImage: 'Ubuntu 16.04'

	variables:
	buildConfiguration: 'Release'

	{
	"name": "webpack-sass",
	"version": "1.0.0",
	"scripts": {
	"start": "webpack-dev-server --open --mode development",
	"build": "webpack -p"
	},
	"devDependencies": {
	"babel-core": "^6.26.0",
	"babel-loader": "^7.1.4",

	public class MyAdapter extends SimpleCursorAdapter {

	// constructor, etc...

	@Override
	public void bindView(View view, Context context, Cursor cursor) {
	super.bindView(view, context, cursor);

	// Stretch list item height if there are too few to fill the content area.
	ListView listView = getListView();