js

'use strict';
const prompt = require('prompt');


prompt.start();
let accepted = false;

while(!accepted) {
    prompt.get([{
        name: 'host',
        required: true
    }, {
        name: 'port',
        required: true,
        message: 'Port must be a number between 0 and 65535',
        conform(value) {
            return value === parseInt(value, 10) && value >= 0 && value <= 65535;
        }
    }, {
        name: 'database',
        required: true
    }, {
        name: 'charset',
        required: true,
        default: 'utf8'
    }, {
        name: 'username',
        required: true
    }, {
        name: 'passwordMasked',
        hidden: true,
        replace: '*'
    }, {
        name: 'ssl',
        message: 'Use ssl for connection?',
        validator: /y[es]*|n[o]?/,
        warning: 'Must respond yes or no',
        default: 'yes'
    }], function(err, result) {
        console.log('  host: ' + result.host + ':' + result.port);
        console.log('  database: ' + result.database);
        console.log('  charset: ' + result.charset);
        console.log('  username: ' + result.username);
        console.log('  passwordMasked: ' + result.passwordMasked);
        console.log('  use ssl: ' + result.ssl);

        prompt.get([{
            name: 'yesno',
            message: 'Is this input correct?',
            validator: /y[es]*|n[o]?/,
            warning: 'Must respond yes or no',
            default: 'no'
        }], function(err, result) {
            if(result.yesno) {
                accepted = true;
                // write to config here
            }
        });
    });
}