How to change/give user agent definition to phantomjs from cmd - amazon-ec2

Question

How can I give user agent definition to phantomjs, I am currently running using following command on aws server ec2 instance
phantomjs --web-security=no --ssl-protocol=any --ignore-ssl-errors=true driver.js http://example.com

Answer 1

You can set a user agent in PhantomJS only in script (driver.js in your example). The documentation about it: http://phantomjs.org/api/webpage/property/settings.html
If you want to pass user agent to PhantomJS in a command line, you can use a parameter. In the script you can take the parameter and set it as a user agent. You can try an example below:
var webPage = require('webpage');
var system = require('system');
var page = webPage.create();
var userAgent = system.args[1];
page.settings.userAgent = userAgent;
console.log('user agent: ' + page.settings.userAgent);
phantom.exit();
Running it as follows:
$ phantomjs ua.js "Mozilla/5.0 (Windows NT 6.1; WOW64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120
Safari/537.36"
you will get output:
user agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36