Sample time series app based on Twitter data with Cassandra on Oracle Data Hub Cloud

The overall solution is pretty simple

Tweet Producer is a Java app which uses the Twitter streaming API to consume tweets and push them to Cassandra cluster on Data Hub

• It’s a Java app and uses twitter4j library to consume the tweet stream
• Applies user defined filter criteria/terms to filter relevant tweets from the stream
• Pushes the tweet data to Cassandra asynchronously
• It provides a REST API to start/stop the app on demand e.g. /tweets/producer

The Tweet Query service defines a REST API and interacts with Cassandra to fetch tweet data

• Its a basic Spring Boot app which leverages Spring Data and Spring Web
• The Cassandra module in Spring Data is used to interact with Cassandra
• spring-boot-starter-web module is used to expose a REST API to query tweet related info

For more info, check out the complete blog