Server-Sent Events (SSE)

SSE allows servers to push data to clients over HTTP.

Basic Usage

r.GET("/events", func(c *rue.Context) {
    client := rue.NewSSEClient(c)
    defer client.Close()
    
    for i := 0; i < 10; i++ {
        client.SendEvent("update", fmt.Sprintf("Event %d", i))
        time.Sleep(time.Second)
    }
})

SSEClient Methods

Method	Description
`SendEvent(event, data)`	Send named event
`SendData(data)`	Send data without event name
`SendComment(comment)`	Send comment (keep-alive)
`Close()`	Close the connection

Client Example

const eventSource = new EventSource('/events');

eventSource.addEventListener('update', (e) => {
    console.log('Update:', e.data);
});

eventSource.onerror = () => {
    console.log('Connection lost');
};