Architecture

How to Upgrade CQRS Events Without Busting Your Event Stream

Events are at the heart of a CQRS Event Sourced system. Which is why ...

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DDD

4 Secrets to Inter-Aggregate Communication in an Event Sourced System

Ok, so you have two event sourced aggregate roots. You need to call a ...

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Architecture, DDD

Is a 100% Provable Audit Log Possible? – Hint, with Event Sourcing it Is and I’ll Show You How

If you’ve been developing for any length of time you’ve probably had to create ...

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DDD

6 Code Smells with your CQRS Events – and How to Avoid Them

When starting out with CQRS, designing the ‘events’ is not always obvious or easy. ...

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DDD

How to Build a Master Details View when using CQRS and Event Sourcing

One of the most liberating things about the CQRS ES way, is the simplicity ...

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DDD

Handling Concurrency Conflicts in a CQRS and Event Sourced system

Imagine if it was possible, when faced with a potential concurrency issue to programmatically ...

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