Provide the URL to CasperJS using the Command Line Interface

Currently, I am leveraging CasperJS to assess a webpage. My goal is to enable the passing of a URL as an argument, have CasperJS download and analyze the webpage, and then display the webpage on standard output for use in a BaSH script. Below is the snippet of code I have developed for Casper:

var casper = require('casper').create();
var url = casper.cli.args;

casper.start(url, function() {
    this.evaluate(function() {
        return document;
    });
    this.echo(this.getHTML());
});
casper.run();

Upon execution, I encounter the following issue:

@:~/spider/casperjs$ casperjs viewsource.js google.com
CasperError: No steps defined, aborting                                         
  /usr/local/src/casperjs/modules/casper.js:1510 in run
  ~/spider/casperjs/viewsource.js:10

I would greatly appreciate any guidance or assistance with this matter.

javascriptcasperjs

Answer №1

Here is how you can label your argument :

Input :

phantomjs fetchdata.js --url="http://YourLink.com"

Script :

var website = phantom.cli.get("url");

phantom.open(website)
.then(......)

Answer №2

give this a shot

  let website = casper.cli.get(0)

Answer №3

After much effort, I have successfully obtained the script:

var casper = require('casper').create();
var url = casper.cli.get(0);

casper.start(url, function () {
    this.evaluate(function() {
        return document;
    });
    this.echo(this.getHTML());
});
casper.run(function() {
    this.exit();
});

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