Response: Response() constructor

{{APIRef("Fetch API")}}{{AvailableInWorkers}}

The Response() constructor creates a new {{domxref("Response")}} object.

Syntax

new Response()
new Response(body)
new Response(body, options)

Parameters

• body {{optional_inline}}

  • : An object defining a body for the response. This can be null (which is the default value), or one of:
    • {{domxref("Blob")}}
    • {{jsxref("ArrayBuffer")}}
    • {{jsxref("TypedArray")}}
    • {{jsxref("DataView")}}
    • {{domxref("FormData")}}
    • {{domxref("ReadableStream")}}
    • {{domxref("URLSearchParams")}}
    • {{jsxref("String")}}
    • string literal

• options {{optional_inline}}

  • : An options object containing any custom settings that you want to apply to the response, or an empty object (which is the default value). The possible options are:
    • status
      • : The status code for the response. The default value is 200.
    • statusText
      • : The status message associated with the status code, such as "OK". The default value is "".
    • headers
      • : Any headers you want to add to your response, contained within a {{domxref("Headers")}} object or object literal of {{jsxref("String")}} key/value pairs (see HTTP headers for a reference). By default this is empty.

Examples

In our Fetch Response example (see Fetch Response live) we create a new Response object using the constructor, passing it a new {{domxref("Blob")}} as a body, and an init object containing a custom status and statusText:

const myBlob = new Blob();
const myOptions = { status: 200, statusText: "SuperSmashingGreat!" };
const myResponse = new Response(myBlob, myOptions);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• ServiceWorker API
• HTTP access control (CORS)
• HTTP