Okhttp eventsource

Server-sent events (SSE) client implementation for Java, based on OkHttp: http://javadoc.io/doc/com.launchdarkly/okhttp-eventsource

From launchdarkly·Updated June 9, 2026·View on GitHub·

This library allows Java developers to consume Server Sent Events from a remote API, using [OkHttp](https://square.github.io/okhttp/) as the transport layer. The SSE spec is defined here: https://html.spec.whatwg.org/multipage/server-sent-events.html The project is written primarily in Java, distributed under the Other license, first published in 2016. Key topics include: eventsource, feature-flags, feature-toggles, java, launchdarkly.

Latest release: 4.3.0— v4.3.0

March 31, 2026View Changelog →

okhttp-eventsource

Overview

This library allows Java developers to consume Server Sent Events from a remote API, using OkHttp as the transport layer. The SSE spec is defined here: https://html.spec.whatwg.org/multipage/server-sent-events.html

Starting in version 2.0, this library uses OkHttp 4.x and requires Java 8+. If you need support for OkHttp 3.x or Java 7, use the latest 1.x version.