Implementing DDD, CQRS and Event Sourcing in Node.js (Book & Code)
This book is 75% complete
Last updated on 2019-08-17
About the Book
Note: The book is 75% complete. The current version is missing Chapter 11-14 (CQRS, Event Sourcing, Remote communication, User Interface). While there is no fixed release date, the book should be 100% complete by the end of May 2020.
This book explains and illustrates how to implement Domain-Driven Design, Command Query Responsibility Segregation and Event Sourcing in Node.js. The reader is taught to build software that is problem centered, well designed, event-based, reactive and scalable. Domain-Driven Design (DDD) is a methodology that focuses on the actual problem to solve and its involved knowledge areas. Command Query Responsibility Segregation (CQRS) promotes to separate a software into a command side and a query side. Event Sourcing is an architectural pattern where state is represented as a series of immutable events. The concepts are described in theory and put into practice with standalone examples and a fully functional sample application. This is done without third party technologies frameworks. All code is written in JavaScript and uses Node.js as runtime. This book includes a source code bundle with all standalone examples and the sample application implementation. The bundle contains more than 5000 lines of JS code.
About the Author
Packages
Book & Code
Includes:
Code (release 20190817)
English
PDF
EPUB
MOBI
WEB
Book & Code - 5 copies (20% discount)
This package is meant for 5 individual readers, such as a team.
Includes:
Code (release 20190817)
English
PDF
EPUB
MOBI
WEB
Book & Code - 10 copies (30% discount)
This book is meant for 10 individual readers.
Includes:
Code (release 20190817)
English
PDF
EPUB
MOBI
WEB
Table of Contents
-
Preface
- Current status
- About the author
- Target audience
- Formatting and highlighting
- Structure and overview
- Code examples
-
Chapter 1: Domain
- Technological and business domains
- Domain Experts
- Subdomains and their types
- Identification of Subdomains
- Sample application: Domains
-
Chapter 2: Domain Model
- Tangibility
- Difference to expert knowledge
- Model creation
- Representation possibilities
- Ubiquitous Language
- Sample application: Domain Model
-
Chapter 3: Bounded Context
- Model and context size
- Relation to subdomains
- Contexts and language
- Technological boundaries
- Sample application: Bounded Contexts
-
Chapter 4: Software architecture
- Parts of a software
- Layered Architecture
- Onion Architecture
- Sample application: Architecture
-
Chapter 5: Useful code qualities
- Model binding
- Refactoring
- Readability
- Behavior and state
- Focus and responsibilities
- Command-Query-Separation
-
Chapter 6: Value Objects, Entities and Services
- Value Objects
- Entities
- Domain Services
- Invariants
- Sample application: Model implementation
-
Chapter 7: Domain Events
- Naming conventions
- Structure and content
- Distribution and processing
- Integration of separate contexts
- Advanced distribution scenarios
- Sample application: Context integration
-
Chapter 8: Aggregates
- Transactions
- Structure and handling
- Concurrency
- Design considerations
- Eventual Consistency
- Sample application: Aggregates and consistency
-
Chapter 9: Repositories
- Focus on the model
- Design and implementation
- Optimistic Concurrency
- Interaction with Domain Events
- Sample application: Repositories and event publishing
-
Chapter 10: Application Services
- Design and implementation
- Different service scenarios
- Transactions and consistency
- Cross-cutting concerns
- Authentication and Authorization
- Sample application: Application Services
- Chapter 11: CQRS
- Chapter 12: Event Sourcing
- Chapter 13: Remote communication
- Chapter 14: User interface
- Bibliography
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