CQRS in Practice

4h 22m 58s
English
Paid
November 1, 2024

There are a lot of misconceptions around the CQRS pattern, especially when it comes to applying it in real-world software projects. In this course, CQRS in Practice, you will learn all about CQRS with event sourcing, database configuration for reads and writes, and more. First, you will learn exactly what CQRS is, the principles behind it, and the benefits it can provide for your project. Next, you will explore the common misconceptions and anti-patterns around CQRS. 

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Finally, you will see a detailed, step-by-step implementation of this pattern in practice. The sample project you'll be working on is close to what you will find in the real world, and you will see each step on the way to CQRS in great detail. By the end of this course, you will have a foundational understanding of the CQRS pattern and how to implement it in your software projects.

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# Title Duration
1 Course Overview 01:35
2 Introduction 03:30
3 CQRS and Its Origins 05:31
4 Why CQRS? 03:39
5 CQRS in the Real World 01:32
6 Summary 01:29
7 Introduction 00:20
8 Problem Domain Introduction 05:57
9 Application Code Introduction 11:31
10 Application Code Drawbacks 08:25
11 Summary 01:32
12 Introduction 00:21
13 CRUD-based Interface 07:27
14 Task-based Interface 01:49
15 Untangling the Update Method 08:31
16 Recap: Untangling the Update Method 03:26
17 Task-based User Interface 02:34
18 Dealing with Create and Delete Methods 04:35
19 Summary 03:43
20 Introduction 00:46
21 Introducing a First Command 11:31
22 Commands in CQS vs. Commands in CQRS 02:48
23 Commands and Queries in CQRS 04:41
24 Commands and Queries in the Onion Architecture 04:22
25 Commands vs. DTOs 03:59
26 Leveraging ASP.NET Core Dependency Injection to Resolve Handlers 05:18
27 Introducing a Query 06:44
28 Finishing up the Refactoring 04:41
29 Recap: Introducing Commands and Queries 03:33
30 Summary 04:28
31 Introduction 00:33
32 New Requirement: Database Retries 02:48
33 Introducing a Database Retry Decorator 08:34
34 Decorator Pattern 03:24
35 Introducing Another Decorator 02:25
36 Streamlining the Decorator Configuration 07:16
37 Recap: Streamlining the Decorator Configuration 01:29
38 Decorators vs. ASP.NET Middleware 05:27
39 Command and Query Handlers Best Practices 04:01
40 Summary 02:32
41 Introduction 00:55
42 The State of the Read Model 05:08
43 Separation of the Domain Model 05:01
44 Simplifying the Read Model 04:13
45 Recap: Simplifying the Read Model 06:40
46 The Read Model and the Onion Architecture 02:26
47 Summary 02:06
48 Introduction 00:17
49 Meet Scalability 05:02
50 Separation at the Data Level in the Real World 02:07
51 Designing a Database for Queries 03:11
52 Creating a Database for Queries 04:04
53 Recap: Creating a Database for Queries 02:00
54 Scalability 01:55
55 A Word of Caution Regarding the Database for Reads 01:58
56 Summary 02:49
57 Introduction 00:21
58 State-driven Projections 06:36
59 Synchronous State-driven Projections 03:05
60 Event-driven Projections 02:47
61 Consistency 03:41
62 Eventual Consistency 04:18
63 Versioning 01:51
64 CQRS and the CAP Theorem 03:23
65 Summary 02:16
66 Introduction 00:16
67 CQRS and Event Sourcing 02:18
68 Evolutionary Design 01:59
69 Using Commands and Queries from Handlers 03:52
70 One-way Commands 01:55
71 CQRS vs. the Specification Pattern 02:47
72 Resource List 00:59
73 Course Summary 01:55

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