chatwork / cqrs-es-example-js

An example of CQRS/Event Sourcing and GraphQL implemented in TypeScript.

cqrs-es-example-js

Overview

This is an example of CQRS/Event Sourcing and GraphQL implemented in TypeScript.

This project uses j5ik2o/event-store-adapter-js for Event Sourcing.

Please refer to here for implementation examples in other languages.

日本語

Feature

• Write API Server(GraphQL)
• Read API Server(GraphQL)
• Read Model Updater on Local
• Docker Compose Support
• Read Model Updater on AWS Lambda
• Deployment to AWS

Component Composition

• Write API Server
  • API is implemented by GraphQL (Mutation)
  • Event Sourced Aggregate is implemented by j5ik2o/event-store-adapter-js
• Read Model Updater
  • Lambda to build read models based on journals
  • Locally, run code that emulates Lambda behavior (local-rmu)
• Read API Server
  • API is implemented by GraphQL (Query)

Stack

This OSS repository mainly utilizes the following technology stack.

• apollographql/apollo-server
• MichalLytek/type-graphql
• prisma
• j5ik2o/cqrs-es-example-js

System Architecture Diagram

Development Environment

• Tools Setup
• Build and Test

Local Environment

• Debugging on Local Machine
• Debugging on Docker Compose

Links

• Common Documents