This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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

Unlike the similar methods in the Fetch 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 interface.

Properties

None.

Methods

PushMessageData.arrayBuffer()
Extracts the data as an ArrayBuffer object.
PushMessageData.blob()
Extracts the data as a Blob object.
PushMessageData.json()
Extracts the data as a JSON object.
PushMessageData.text()
Extracts the data as a plain text string.

Examples

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);
  }
});

Specifications

Specification Status Comment
Push API
The definition of 'PushMessageData' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 50Edge ? Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 37Safari No support NoWebView Android No support NoChrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 5.0
arrayBuffer
Experimental
Chrome Full support 50Edge ? Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 37Safari No support NoWebView Android No support NoChrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 5.0
blob
Experimental
Chrome Full support 50Edge ? Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 37Safari No support NoWebView Android No support NoChrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 5.0
json
Experimental
Chrome Full support 50Edge ? Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 37Safari No support NoWebView Android No support NoChrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 5.0
text
Experimental
Chrome Full support 50Edge ? Firefox Full support 44
Notes
Full support 44
Notes
Notes Service workers (and Push) have been disabled in the Firefox 45 & 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 37Safari No support NoWebView Android No support NoChrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 5.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.

Document Tags and Contributors

Contributors to this page: chrisdavidmills, fscholz, alsntjsu, jpmedley, Sheppy, m_t, nyrosmith
Last updated by: chrisdavidmills,