How can you implement a custom reactive data repository in Spring Boot?

To implement a custom reactive data repository in Spring Boot, you should extend the ReactiveMongoRepository interface (or a similar interface for other data stores) and provide custom query methods. This allows you to define repository operations that are specific to your application's needs while leveraging Spring Data's reactive capabilities. Implementing CrudRepository with reactive types is not the recommended way for creating a reactive repository. Creating a new Java class with @Repository annotation does not inherently make it reactive. Configuring the repository in the application.properties file is not a standard approach for defining repository methods.