got: got request for host in hosts file throws ENOTFOUND

I’ve raised https://github.com/szmarczak/cacheable-lookup/issues/24 – please let me know if you need more info (:

I originally left out code because the situation is easy enough to replicate, but specific to the host system; however, as per your request, here’s a full set of steps:

1. update \windows\system32\drivers\etc\hosts to contain:

127.0.0.1      server.dev.local

2. create a new project:

mkdir got-issue
cd got-issue
npm init -y
npm install --save got express

3. add the app.js file:

var app = require("express")();
var got = require("got");
var http = require("http");

app.get('/user', (req, res) => {
  res.send({
    id: 1,
    name: "Han",
    likes: "to shoot first"
  });
});

app.get("/fails", (req, res) => {
  got("http://server.dev.local/user")
    .then(result => res.send(result.body))
    .catch(err => {
      res.status(500);
      res.send(err);
    });
});

app.get("/by-ip", (req, res) => {
  got("http://127.0.0.1/user")
    .then(result => res.send(result.body))
    .catch(err => {
      res.status(500);
      res.send(err);
    });
});

app.get("/by-http", (req, res) => {
  http.get("http://server.dev.local/user", r => {
    let data = "";
    r.on("data", d => data += d.toString());
    r.on("end", () => res.send(data));
  });
});

var server = app.listen(80, () => {
  const address = server.address();
  console.log(`listening on ${address.address}:${address.port}`);
});

4. update package.json, adding the ‘start’ script:

{
  "name": "got-issue",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node app.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1",
    "got": "^11.0.2"
  }
}

5. Run it

npm start

6. Create a batch file:

curl http://localhost/user
curl http://localhost/fails
curl http://localhost/by-ip
curl http://localhost/by-http

7. Run the batch file

C:\code\scratch\got-issue>curl http://localhost/user
{"id":1,"name":"Han","likes":"to shoot first"}

C:\code\scratch\got-issue>curl http://localhost/fails
{"name":"RequestError","code":"ENOTFOUND","timings":{"start":1587992852528,"socket":1587992852529,"lookup":1587992852534,"error":1587992852534,"abort":1587992852535,"phases":{"wait":1,"dns":5,"total":7}}}

C:\code\scratch\got-issue>curl http://localhost/by-ip
{"id":1,"name":"Han","likes":"to shoot first"}

C:\code\scratch\got-issue>curl http://localhost/by-http
{"id":1,"name":"Han","likes":"to shoot first"}