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Request: blob() method

The blob() method of the Request interface reads the request body and returns it as a promise that resolves with a Blob.

Syntax

js

blob()

Parameters

None.

Return value

A promise that resolves with a Blob.

Examples

js

const obj = { hello: "world" };
const myBlob = new Blob([JSON.stringify(obj, null, 2)], {
  type: "application/json",
});

const request = new Request("/myEndpoint", {
  method: "POST",
  body: myBlob,
});

request.blob().then((myBlob) => {
  // do something with the blob sent in the request
});

Specifications

Specification
Fetch Standard
# ref-for-dom-body-blob①

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
blob 42 14 39 No 29 10.1 42 42 39 29 10.3 4.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/Request/blob