@strongnguyen/oidc-provider/lib/helpers/set_www_authenticate.js

OAuth 2.0 Authorization Server implementation for Node.js with OpenID Connect

const omitBy = require('./_/omit_by');

module.exports = function setWWWAuthenticate(ctx, scheme, fields) {
  const wwwAuth = Object.entries(omitBy(fields, (v) => v === undefined))
    .map(([key, val]) => `${key}="${val.replace(/"/g, '\\"')}"`)
    .join(', ');

  ctx.set('WWW-Authenticate', `${scheme} ${wwwAuth}`);
};