1. InfluxDB Cloud Serverless Account : You can create one for free from here.
2. Maven and JDK 17 or newer on your local machine.
3. Clone this GitHub repository and open the HelloInfluxDB.java file and update the configurations for HOST_URL, DATABASE and API_TOKEN that can be found in your InfluxDB Cloud webportal. It is recommened to store the API_TOKEN securely and not hard code for security reasons.
4. Build the project by running mvn clean package
5. Run the appliocation by typing java --add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED -jar target/{name of your jar file}.jar

This project shows how to connect a simple Java command line application created using Maven and the light weight InfluxDB v3 client SDK by authenticating and then perform writing and querying of sample data to the cloud hosted bucket.

The key class is HelloInfluxDB.java that has complete logic.

More sophisticated example using SpringBoot and Micronaut frameworks are coming soon!