svnlab / lokad-iddd-sample

Sample code for IDDD by Vaughn Vernon

DRAFT! sample code for IDDD Book

This is .NET Sample Project to accompany Event Sourcing materials from IDDD Book by Vaughn Vernon.

Please note, that at the moment of writing this sample project is draft. Final revision will be delivered simultaneously with the book itself.

Contents

This project includes sample domain implemented with event sourcing pattern. Multiple persistence options are provided:

• Microsoft SQL Server
• MySQL
• File storage
• Windows Azure Blob Storage

Usage

Start by downloading sources (ZIP, Visual Studio) or by cloning a git repository:

$ git clone git://github.com/Lokad/lokad-iddd-sample.git

Then, open solution in Visual Studio (ModoDevelop might also work) and run the project. The project is auto-configured to use file storage by default, and cleans it on every start.

You should see something like:

Command: Create customer-12 named 'Lokad' with Eur
  customer-12 r0 Event: Customer Lokad created with Eur
  customer-12 r0 Event: Added 'Welcome bonus' 15 EUR | Tx 1 => 15 EUR
  Completed in 145 ms
Command: Rename customer-12 to 'Lokad SAS'
  customer-12 r1 Event: Customer renamed from 'Lokad' to 'Lokad SAS'
  Completed in 27 ms
Command: Charge 20 EUR - 'Forecasting'
  customer-12 r2 Event: Charged 'Forecasting' 20 EUR | Tx 2 => -5 EUR
  Completed in 16 ms

Then, you can dive into the code by starting with Domain folder in this solution.

You can also try plugging in other types of stores. Each store requires connection string and will auto-create all required resources automatically.

Want More?

If you want more details, here's what you can do next:

• Check out the Domain Driven Design community
• Dive into Lokad.CQRS Sample Project (much more detailed and practical version of this sample)
• Check out CQRS/DDD Pocket Guide and case studies
• Follow @VaughnVernon.
• Follow @abdullin.

If you have any questions, please feel free to ask contributors.

Authors and Contributors

• Vaughn Vernon, Book author and reviewer
• Rinat Abdullin, A+ES text and sample project. Tech Leader at Lokad, Big Data Analytics for Retail.