I use Node.js of Cloud Function.This is part of my program.
--------------------------------const postDevice = (user, device) => {const options = {host: user.host, //URLport: device.port, //PORTmethod: 'POST',ContentType: 'text/plain',//ヘッダーに指示内容をセットheaders: {email: 'te...@test.jp',device: 'TV',action: 'ON',},};const req = http.request(options, (res) => {res.setEncoding('utf8');res.on('data', (chunk) => {console.log('BODY:', chunk);});res.on('end', () => {});});req.end();};--------------------------------I want to know the FQDN of the sender when I send a POST from Cloud Functions.