ddd-leaven-akka-v2

Sample e-commerce application built on top of Akka and EventStore following a CQRS/DDDD-based approach. Makes use of Akka DDD framework.

Currently only basic Sales/Reservation autonomous service is available. Autonomous service consist of 4 executable units (Akka Microkernel bundles).

Sales service - executable units

sales-write-back

Business logic encapsulated inside Aggregate Roots. Starts as backend cluster node.

Technologies: Akka Persistence, Akka Cluster Sharding

sales-write-front

Http server forwarding commands to backend cluster.

Technologies: Akka-Http, Akka Cluster Client

sales-read-back

Service that consumes events from event store and updates view store (Postgresql database).

Technologies: EventStore JVM Client, Slick

sales-read-front

Http server providing rest endpoint for accessing view-store.

Technologies: Akka-Http, Slick

Prerequisites

Eventstore

docker run --name ecommerce-event-store -d -p 2113:2113 -p 1113:1113 jmkelly/eventstore

Go to http://127.0.0.1:2113/web/index.html#/projections and click Enable All button to enable system projections.

Postgresql

docker run --name sales-view-store -d -p 5432:5432 postgres

Postgres console: psql -h localhost -p 5432 -U postgres

Command line HTTP client

http://httpie.org/

Building the project

sbt stage

Running Sales/Reservations service

For each sales-* bundle there is a corresponding run script: run-sales-{unit name}

Manual testing of Sales/Reservation service using httpie

• Create reservation

http POST http://127.0.0.1:9100/ecommerce/sales Command-Type:ecommerce.sales.CreateReservation reservationId="reservation-200" clientId="client-1"

• Display all reservations

http GET localhost:9300/ecommerce/sales/reservation/all