How can I get the server address?

Hi, how can I get the server address?

import app from './app'
const client = supertest(app)

client.get('/api/customers').then(response => {

})

// how do I find out what port supertest is using?

Thanks.

[daggerok]

const request = require('supertest'); // npm i -ED supertest
const app = require('../app'); // your expressjs app
const { url } = request(app).get('/'); // next, just use url
console.debug(url); // prints: http://127.0.0.1:57516/

[ericprud]

The Test object returned by request() is also referenced in the Response object. For folks landing here later, here’s a stand-alone callback example using "supertest": "^6.1.3" and "express": "^4.17.1" which demonstrates four ways to get the host:

const Supertest = require('supertest')
const App = require('express')()
const ReqPath = '/hello'
const Body = 'Hello World'
App.get(ReqPath, function (req, res) { res.send(Body) })

const request = Supertest(App).get(ReqPath)
console.log(
  'request.url:', new URL(request.url).port,
  '\nrequest.host:', request.host,
)
request
  .expect('Content-Length', "" + Body.length)
  .expect(200)
  .end((err, resp) => {
    console.log(
      'request.host:', request.host,
      '\nresp.request.url:', new URL(resp.request.url).port,
      '\nresp.request.host:', resp.request.host,
    )
  })

request.url: 45633 
request.host: undefined
request.host: 127.0.0.1:45633 
resp.request.url: 45633 
resp.request.host: 127.0.0.1:45633

Note that request.host is not populated until request has been end()-ed (or awaited as in @t3hmrman’s example).