Syntax
js
blob()
Parameters
None.
Return value
A promise that resolves with a Blob whose data is the body's bytes and the media type is the request's Content-Type header's value.
Exceptions
TypeError-
Thrown for one of the following reasons:
- The request body is disturbed or locked.
- There was an error decoding the body content (for example, because the
Content-Encodingheader is incorrect).
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 # ref-for-dom-body-blob① |