Reactive Data Access & Integration
Connect WebFlux applications to reactive data stores and integrate with other reactive components.
Reactive Data Access Needs
When building reactive applications with Spring WebFlux, traditional data access methods like Spring Data JPA or plain JDBC won't work. Why?
These methods are blocking. They pause the application thread while waiting for database operations to complete. This goes against the non-blocking, asynchronous nature of reactive programming.
Introducing Reactive Data Stores
To maintain the reactive flow, we need reactive data stores and drivers that support non-blocking I/O. These drivers return Mono or Flux, allowing your application to do other work while the database processes requests.
Common reactive databases include:
- MongoDB: A NoSQL document database.
- Cassandra: A NoSQL wide-column store.
- Redis: A NoSQL key-value store, often used for caching.
- R2DBC: (Reactive Relational Database Connectivity) for relational databases like PostgreSQL, MySQL, H2.
All lessons in this course
- Introduction to Reactive Programming
- Spring WebFlux & Reactor Core
- Reactive Data Access & Integration
- Backpressure and Error Handling in Reactive Streams