Hapijs server start error – Invalid server options

I am using this simple server program

const Hapi = require('hapi');
const server = new Hapi.Server({
  host: 'localhost',
  port: 8080,
});

server.route({
  path: '/',
  method: 'GET',
  handler: (request, response) => {
    response(true);
  },
});

server.start(() => {
  console.log('Server running at:', server.info.uri);
});

which gave me the following error on server startup

throw new Error(msgs.join(' ') || 'Unknown error');
    ^

Error: Invalid server options {
  "port" [2]: 8080,
  "host" [1]: "localhost"
}

[1] "host" is not allowed
[2] "port" is not allowed
    at Object.exports.assert (/Users/aakashverma/Documents/exercises/makeithapi/node_modules/hoek/lib/index.js:736:11)
    at Object.exports.apply (/Users/aakashverma/Documents/exercises/makeithapi/node_modules/hapi/lib/schema.js:17:10)
    at new module.exports.internals.Server (/Users/aakashverma/Documents/exercises/makeithapi/node_modules/hapi/lib/server.js:32:22)
    at Object.<anonymous> (/Users/aakashverma/Documents/exercises/makeithapi/serveEm/serveEm.js:3:16)
    at Module._compile (module.js:660:30)
    at Object.Module._extensions..js (module.js:671:10)
    at Module.load (module.js:573:32)
    at tryModuleLoad (module.js:513:12)
    at Function.Module._load (module.js:505:3)
    at Function.Module.runMain (module.js:701:10)

and my package.json has dependencies set this way

"dependencies": {
    "axios": "^0.17.1",
    "hapi": "^16.6.2"
  }

I tried searching for this issue everywhere and found an exact one here but the versions are too old to be compared.

How do I resolve this problem?

Answer

The options you’re passing need to be passed to a call to server.connection() rather than into the Server constructor.

Snippet from hapi docs:

'use strict';

const Hapi = require('hapi');

const server = new Hapi.Server();
server.connection({ port: 3000, host: 'localhost' });

server.start((err) => {

    if (err) {
        throw err;
    }
    console.log(`Server running at: ${server.info.uri}`);
});