feat(useEventSource): added lastEventId for named events (#4791)

whiteyebrw · web-flow · commit f6f0bc1a8668 · 2025-06-19T08:06:27.000Z
diff --git a/packages/core/useEventSource/index.ts b/packages/core/useEventSource/index.ts
@@ -188,9 +188,10 @@ export function useEventSource<Events extends string[], Data = any>(
     }
 
     for (const event_name of events) {
-      useEventListener(es, event_name, (e: Event & { data?: Data }) => {
+      useEventListener(es, event_name, (e: Event & { data?: Data, lastEventId?: string }) => {
         event.value = event_name
         data.value = e.data || null
+        lastEventId.value = e.lastEventId || null
       }, { passive: true })
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -188,9 +188,10 @@ export function useEventSource<Events extends string[], Data = any>(`
`188`	`188`	`}`
`189`	`189`
`190`	`190`	`for (const event_name of events) {`
`191`		`- useEventListener(es, event_name, (e: Event & { data?: Data }) => {`
	`191`	`+ useEventListener(es, event_name, (e: Event & { data?: Data, lastEventId?: string }) => {`
`192`	`192`	`event.value = event_name`
`193`	`193`	`data.value = e.data \|\| null`
	`194`	`+ lastEventId.value = e.lastEventId \|\| null`
`194`	`195`	`}, { passive: true })`
`195`	`196`	`}`
`196`	`197`	`}`