Using StandardWebSocketClient it's not possible to customize ClientEndpointConfig before it's passed to WebSocketContainer.connectToServer method [SPR-12955]

[spring-projects-issues]

Rostislav Georgiev Georgiev opened SPR-12955 and commented

StandardWebSocketClient in it's doHandshakeInternal method is using ClientEndpointConfig.Builder to initialize ClientEndpointConfig and is passing it directly to WebSocketContainer.connectToServer method.
ClientEndpointConfig has a UserProperties map, which can used to pass additional Container specific configurations. E.g. for example Tomcat WebSocket container will check userProperties for "org.apache.tomcat.websocket.SSL_CONTEXT" to setup SSLEngine.

It would be nice to have a way to supply StandardWebSocketClient with custom UserProperties.

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Affects: 4.1.6

Referenced from: commits 222f699

[spring-projects-issues]

Rossen Stoyanchev commented

This should be possible now. Please give it a try.