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Rock the JVM - Spark Streaming with Scala

This repository contains the code we wrote during Rock the JVM's Spark Streaming with Scala. Unless explicitly mentioned, the code in this repository is exactly what was caught on camera.

Prerequisites

  • Java 17+ (Java 21 also supported)
  • Scala 2.13
  • SBT 1.10+
  • Docker and Docker Compose
  • IntelliJ IDEA (recommended) with the Scala plugin =======

How to install

  1. Clone the repo or download as zip
  2. Open with IntelliJ as an SBT project
  3. In a terminal, navigate to the repo folder and run docker compose up -d to start the infrastructure containers (Kafka, PostgreSQL, MongoDB)

Infrastructure

The docker-compose.yml provides:

  • PostgreSQL 16 on port 5432 (user: docker, password: docker, database: rtjvm)
  • MongoDB 7 on port 27017 (database: rtjvm)
  • Apache Kafka on port 9092 (with Zookeeper on port 2181)

For questions or suggestions

If you have changes to suggest to this repo, either

  • submit a GitHub issue
  • tell me in the course Q/A forum
  • submit a pull request!