Backend:

• Java EE microservice <3 Java 9
  • build by Maven
  • backed by PostgreSQL
  • searchable via Elasticsearch
  • connected to
    • Akka
    • OpenZipkin tracing
    • Kafka messaging
    • Prometheus
  • deployed to Payara 5
• Spring Boot microservice <3 Kotlin
  • with Spring MVC
  • build by Gradle
  • backed by CockroachDB
  • connected to
    • Akka
    • OpenZipkin tracing
    • Kafka messaging
    • Prometheus
• Play 2 microservice <3 Scala
  • running on Play
  • backed by Cassandra
  • connected to
    • Akka
    • OpenZipkin tracing
    • Kafka messaging
    • Prometheus
• Go microservice
  • build by go build
  • using dep
  • backed by Redis
  • connected to
    • OpenZipkin tracing
    • Kafka messaging
    • Prometheus
• NodeJS microservice
  • with Express
  • backed by MongoDB
  • connected to
    • OpenZipkin tracing
    • Kafka messaging
    • Prometheus
• Ruby on Rails microservice
• Python microservice
• Rust microservice
• Elixir microservice
• Clojure microservice

Contracts:

• Protocol buffers
• Pact

API Gateway:

• NodeJS with GraphQL

Frontend:

• React <3 ES6
• SASS
• Webpack

Frontend Admin UI:

• Angular <3 TypeScript
• SCSS
• Webpack

Desktop application

• Electron
  • with bundled Frontend

Mobile

• React Mobile

Testing

• Gattling

Monitoring

• Kibana
• Grafana

Deployment

• Docker compose
• Kubernetes