Using WebSocket support in API Gateway

The API Gateway includes a basic WebSocket proxy which enables the Gateway to access applications that use the WebSocket protocol together with a web UI and a REST API.

The service defines which WebSocket endpoints are exposed by using Eureka metadata.

Example:

eureka:
    instance:
        metadata-map:
            apiml:
                routes:
                    ws_v1:
                        gatewayUrl: "ws/v1"
                        serviceUrl: /${serviceId}/ws

These metadata make it possible for requests from wss://gatewayHost:gatewayPort/${serviceId}/ws/v1/path to map to wss://serviceHost:servicePort/${serviceId}/ws/v1/path.

• serviceId
  Specifies the service ID of the service.

• path
  Specifies the remaining path segment in the URL.