WebClient

WebClient is a non-blocking, reactive client to perform HTTP requests. It was introduced in 5.0 and offers a modern alternative to the RestTemplate, with efficient support for both synchronous and asynchronous, as well as streaming scenarios.

In contrast to RestTemplate, WebClient supports the following:

  • Non-blocking I/O.

  • Reactive Streams back pressure.

  • High concurrency with fewer hardware resources.

  • Functional-style, fluent API that takes advantage of Java 8 lambdas.

  • Synchronous and asynchronous interactions.

  • Streaming up to or streaming down from a server.

See WebClient for more details.