Request: blob() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

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

BCD tables only load in the browser

See also