Request: json() method

The json() method of the Request interface reads the request body and returns it as a promise that resolves with the result of parsing the body text as JSON.

Note that despite the method being named json(), the result is not JSON but is instead the result of taking JSON as input and parsing it to produce a JavaScript object.

Syntax

json()

Parameters

None.

Return value

A Promise that resolves to a JavaScript object. This object could be anything that can be represented by JSON — an object, an array, a string, a number…

Examples

const obj = { hello: "world" };

const request = new Request("/myEndpoint", {
  method: "POST",
  body: JSON.stringify(obj),
});

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

Specifications

Specification
Fetch Standard # ref-for-dom-body-json①

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
`json`	42	14	39	No	29	10.1	42	42	39	29	10.3	4.0

Docs

Docs4dev

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