Method OnMessage

internal/wsjs/wsjs_js.go:107–123

OnMessage registers a function to be called when the WebSocket receives a message.

(fn func(m MessageEvent))

// OnMessage registers a function to be called when the WebSocket receives a message.
func (c WebSocket) OnMessage(fn func(m MessageEvent)) (remove func()) {
	return c.addEventListener("message", func(e js.Value) {
		var data any

		arrayBuffer := e.Get("data")
		if arrayBuffer.Type() == js.TypeString {
			data = arrayBuffer.String()
		} else {
			data = extractArrayBuffer(arrayBuffer)
		}

		me := MessageEvent{
			Data: data,
		}
		fn(me)
	})
}

// Subprotocol returns the WebSocket subprotocol in use.
func (c WebSocket) Subprotocol() string {