sse / EventSource

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[magicdawn]

应用

• esbuild 的 LiveReload, https://esbuild.github.io/api/#live-reload
• shimo 的文档更新, 用的是 EventSource

[magicdawn]

EventSource

• https://developer.mozilla.org/en-US/docs/Web/API/EventSource
• https://juejin.cn/post/7075682506728701966

mime-type

text/event-stream

server send message

https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#sending_events_from_the_server

以空行分割, 即 \n\n

event: foo
data: foo-data

event: foo
data: foo-data

还可以包含 id:

client

const s = new EventSource('/sse/url')

// when a event has no `event: ` field
s.addEventListener('message', (e) => {
  // 
})

// when a event has `event: foo`
s.addEventListener('foo', (e) => {
  // 
})