CQRS Examples and Screencasts

Question

I'm looking for some in depth end-to-end CQRS examples with a reasonable set of unit tests.

Also, if anyone knows of some CQRS screencasts as well it would be extremely handy.

I'm already aware of these examples

Recently Vladimir Khorikov @vkhorikov has produced new course in Pluralsight named "Pluralsight CQRS in Practice", he is a professional guys in this field and also DDD. — Mehdi Payervand, Dec 18 '18 at 08:03

Chris Moutray · Accepted Answer · 2014-08-26T06:53:03.897

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There's a implementation here MarkNijhof.

But after reading the documents from the CQRS Info site my favourite resource is Think Before Coding look at the post Tags. (http://thinkbeforecoding.com/)

Some other useful resources...

edited Aug 26 '14 at 06:53

answered Feb 18 '11 at 16:22

Chris Moutray

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New one from Martin Fowler: http://martinfowler.com/bliki/CQRS.html – Derick Schoonbee Sep 01 '11 at 14:09
There is good: http://www.cqrs.nu/ – Jacek Sep 14 '15 at 13:22

score 14 · Answer 2 · answered May 06 '12 at 05:36

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Microsoft patterns & practices is working on a guidance project called CQRS Journey. The idea is to develop a non-trivial system with multiple bounded contexts and apply CQRS, ES and other patterns & techniques where appropriate and document all lessons learnt along the way. The project is still in flight. Check out the journey progress at http://cqrsjourney.github.com

Code repo is at https://github.com/mspnp/cqrs-journey-code
Doc review via http://pundit.cloudapp.net

The project involves many community members and accepts contribitions!

answered May 06 '12 at 05:36

Grigori Melnik

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V3 with no downtime migration shipped - http://cqrsjourney.github.com/blog/2012/07/19/V3-Final-Release/ – Grigori Melnik Aug 07 '12 at 19:39
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Final release is out - http://aka.ms/cqrsrelease – Grigori Melnik Aug 07 '12 at 19:39
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Final release eBook - aka.ms/cqrspdf – Grigori Melnik Sep 30 '12 at 14:00
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The book is now in print - http://www.amazon.com/Exploring-CQRS-Event-Sourcing-maintainability/dp/1621140164 – Grigori Melnik Feb 21 '13 at 18:06

score 9 · Answer 3 · answered Feb 18 '11 at 16:08

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http://ncqrs.org/

Is a useful resource...

answered Feb 18 '11 at 16:08

David Masters

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ncqrs.org appears to be a dead link - so try https://github.com/ncqrs/ncqrs – Chris Moutray Mar 26 '13 at 16:03

score 7 · Answer 4 · answered Nov 07 '11 at 12:36

Here is a complete example I wrote for my CQRS lib Scritchy:

Example.Domain: Domain implementation
Example.Specs : Domain behavior specs using MSpec
Example.Web : Example MVC web app (demo at http://scritchyExample.apphb.com )
Example.SignalR : Example html/Javascript/SignalR web app (using the same domain code)

Creating your CQRS app using the Scritchy nuget package is pretty straightforward and gets you up and running in a few minutes

quentin-starin · Answer 5 · 2011-02-18T21:14:13.387

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Here's some more informational resources, but unfortunately no end-to-end code samples beyond SimpleCQRS and MarkNijhof.

I have come across a couple other code samples, though I have not yet had time to review them whatsoever:

edited Feb 18 '11 at 21:14

answered Feb 18 '11 at 19:50

quentin-starin

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Now there is an end-to-end comprehensive sample from Microsoft patterns & practices at http://aka.ms/cqrs – Grigori Melnik Aug 07 '12 at 19:41

score 6 · Answer 6 · edited Sep 30 '12 at 01:37

Udi Dahan would have to be one of the experts in the CQRS field, imo.

Here is a blog about it: http://www.udidahan.com/2009/12/09/clarified-cqrs/

Here is a CQRS podcast (I haven't watched it, but if it's anything like his course presentation it will be great): http://skillsmatter.com/podcast/open-source-dot-net/udi-dahan-command-query-responsibility-segregation/rl-311

Here is a SOA talk (may not be directly relevant but excellent regardless): http://vimeo.com/5022174

If you have the time, I'd recommend popping along to one of Udi's courses when one is nearby, as he covers CQRS in depth.

score 5 · Answer 7 · edited Jul 29 '12 at 23:14

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I recommend this screencast by Chris Tavares. It gives a good overview of CQRS and it shows some good examples in code.

URL: http://channel9.msdn.com/Blogs/MichaelLehman/PP-Symposium-2010-The-Commmand-Query-Separation-Pattern-Chris-Tavares

edited Jul 29 '12 at 23:14

Ruben Bartelink

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answered Mar 02 '11 at 20:30

Fossmo

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This screencast is by Chris Tavares. – Grigori Melnik May 06 '12 at 05:32

score 4 · Answer 8 · answered Feb 27 '11 at 20:20

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I've got a sample of just the BDD style of unit-tests, it isn't end-to-end, but since you mentioned unit tests I figured it might be of interest. http://lucisferre.net/2011/02/05/behavior-driven-test-driven-domain-driven-design/

answered Feb 27 '11 at 20:20

Chris Nicola

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score 3 · Answer 9 · edited Aug 18 '14 at 07:16

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There was a great session during aspConf 2012 by Ashic Mahtab.

CQRS with ASP.NET MVC - A Year On

Complete source code here

edited Aug 18 '14 at 07:16

Kalu Singh Rao

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answered Sep 29 '12 at 12:02

Ufuk Hacıoğulları

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CQRS Examples and Screencasts

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