Solution - APIs and Microservices Projects - Request Header Parser Microservice

What is your hint or solution suggestion?

app.get("/api/whoami", function (req, res) {
  var ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
  var lang = req.headers["accept-language"];
  var software = req.headers["user-agent"];
  res.json({ipaddress: ip,
   "language": lang, 

Challenge: Request Header Parser Microservice

Link to the challenge:

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