This is the Java/Spring version of the Event Sourcing/CQRS money transfer example application.
About the application
This application consists of three microservices:
- Account Service - the command side business logic for Accounts
- Money Transfer Service - the command side business logic for Money Transfers
- Query service - query side implementation of a MongoDB-based, denormalized view of Accounts and MoneyTransfers
The Account Service consists of the following modules:
- accounts-command-side-backend - the Account aggregate
- accounts-command-side-web - a REST API for creating and retrieving Accounts
- accounts-command-side-service - a standalone microservice
The Money Transfer Service consists of the following modules:
- transactions-command-side-backend - the MoneyTransfer aggregate
- transactions-command-side-web - a REST API for creating and retrieving Money Transfers
- transactions-command-side-service - a standalone microservice
The Query Service consists the following modules:
- accounts-query-side-backend - MongoDB-based, denormalized view of Accounts and MoneyTransfers
- accounts-query-side-web - a REST API for querying the denormalized view
- accounts-query-side-service - a standalone microservice
Deploying the application
These services can be deployed either as either separate standalone services using the Event Store server, or they can be deployed as a monolithic application for simpified integration testing.
The three services can also be packaged as a single monolithic web application in order to be used with the embedded Event Store:
- monolithic-service - all-in-one, monolithic packaging of the application