Real-World Event Sourcing

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Real-World Event Sourcing: Distribute, Evolve, and Scale Your Elixir Applications

Our applications are bombarded with data. It's hard enough to derive state from that data, let alone discover how we arrived at that state. With event sourcing you can treat the stream of data as a simple sequence of events that you use to construct whatever state you need. Event sourcing is more than events; it adds patterns, rules, and constraints to produce robust and easy-to-maintain systems. In this book, you'll learn which rules can never be broken and which ones are flexible. By grounding yourself in theory, rules, and practical approaches, you'll be able to build real-world, event-sourced applications.

Get your hands dirty with fundamental event-sourcing building blocks such as commands, aggregates, projectors, process managers, injectors, and notifiers. Combine these building blocks to produce elegant solutions to complex problems. Leave "hello world" far behind as you tackle the more advanced aspects of event sourcing that give you the confidence you need to run these applications in production. Leverage event sourcing to create distributed applications with ease; model and handle failure; and deal with replays, schema evolution, security, and much more.

This book doesn't shy away from confronting the hard parts of event sourcing, instead giving you clear advice and examples for tackling the most difficult details.

Empower your applications with the full force of event sourcing today.

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