Practical guide to Event Sourcing

[ebysofyan]

What is Event Sourcing?

Event Sourcing is a pattern for storing data as events in an append-only log. This simple definition misses the fact that by storing the events, you also keep the context of the events; you know an invoice was sent and for what reason from the same piece of information. In other storage patterns, the business operation context is usually lost, or sometimes stored elsewhere.