# Reference App source: https://developer.mastercard.com/points-activity-service/documentation/reference-app/index.md The reference application shows a typical usage of the Loyalty Points Activity Service API and how to integrate different operations in the Sandbox environment. You can either re-use or take code references for your implementation. ## What you will learn {#what-you-will-learn} * How to use the reference application * How to configure your application for the Sandbox and the Production environments * How to test your application ## Pre-requisites {#pre-requisites} * [Java 11](https://www.java.com/en/) and above installed * [IntelliJ IDEA](https://www.jetbrains.com/idea/) (or any other IDE of your choice) ## Technologies Used {#technologies-used} * [Apache Maven](https://maven.apache.org/) * [OpenAPI Generator](https://openapi-generator.tech/) ## Get the Source Code {#get-the-source-code} * The source code for the Reference Application can be found here: [points-activity-service-reference-app.zip](https://static.developer.mastercard.com/content/points-activity-service/points-activity-service-reference-app.zip) (35KB). * In the root directory of the application, follow the README.md file to configure and run the application. Tip: If you'd rather start from scratch, take a look at our [Tutorial and Guides](https://developer.mastercard.com/points-activity-service/documentation/tutorials-and-guides/index.md) page which includes guidance on consuming this API from a new project.