PushMessageData

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特性
方法
范例
规范
浏览器兼容性
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这是实验性技术
检查浏览器兼容性表格要小心谨慎在生产中使用这之前。

PushMessageData 接口在 Push API provides methods which let you retrieve the push data sent by a server in various formats.

Unlike the similar methods in the 抓取 API , which only allow the method to be invoked once, these methods can be called multiple times.

Messages received through the Push API are sent encrypted by push services and then automatically decrypted by browsers before they are made accessible through the methods of the PushMessageData 接口。

特性

None.

方法

PushMessageData.arrayBuffer(): Extracts the data as an ArrayBuffer 对象。
PushMessageData.blob(): Extracts the data as a Blob 对象。
PushMessageData.json(): Extracts the data as a JSON 对象。
PushMessageData.text()

范例

self.addEventListener('push', function(event) {
  var obj = event.data.json();
  if(obj.action === 'subscribe' || obj.action === 'unsubscribe') {
    fireNotification(obj, event);
    port.postMessage(obj);
  } else if(obj.action === 'init' || obj.action === 'chatMsg') {
    port.postMessage(obj);
  }
});

规范

规范	状态	注释
Push API The definition of 'PushMessageData' in that specification.	工作草案	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`PushMessageData`	Chrome 50	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 37	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 50	Firefox Android 48	Opera Android 37	Safari iOS 不支持 No	Samsung Internet Android 5.0
`arrayBuffer`	Chrome 50	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 37	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 50	Firefox Android 48	Opera Android 37	Safari iOS 不支持 No	Samsung Internet Android 5.0
`blob`	Chrome 50	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 37	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 50	Firefox Android 48	Opera Android 37	Safari iOS 不支持 No	Samsung Internet Android 5.0
`json`	Chrome 50	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 37	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 50	Firefox Android 48	Opera Android 37	Safari iOS 不支持 No	Samsung Internet Android 5.0
`text`	Chrome 50	Edge ≤79	Firefox 44 注意事项 44 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 37	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 50	Firefox Android 48	Opera Android 37	Safari iOS 不支持 No	Samsung Internet Android 5.0

图例

完整支持
不支持
实验。期望将来行为有所改变。

元数据

最后修改： 2019 年 3 月 23 日

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特性

方法

范例

规范

浏览器兼容性

图例

相关话题