Fintech Engineering Handbook: Software Patterns for Money-Focused Systems

Money can't be created out of nowhere, so we can't tolerate duplicates or arbitrary balance updates.

This resource aims to describe the most important patterns used in software engineering, where money is the primary focus of the system.

It can be read in full to get a comprehensive understanding or in parts when dealing with a particular problem.

It's meant as a living document and contributions are welcomed.