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Express.js · Interface

Response

The Express res object represents the HTTP response sent by an app. It extends Node's response object and provides methods for headers, cookies, status codes, response bodies, files, redirects, and templates.

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Syntax

app.METHOD(path, (req, res) => { /* use res */ });

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  • res.app
  • res.headersSent
  • res.locals
  • res.req
  • res.append()
  • res.cookie()
  • res.end()
  • res.format()

Source: Response · Express.js 4.x. Checked 2026-11-03.