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POUsing the 'webpage' Phantom module in node.js
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  1. POUsing the 'webpage' Phantom module in node.js
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    copied!<p>I am trying to wrap a PhantomJS script in a node.js process. The phantom script grabs a url from the arguments provided on the command line and outputs a pdf (much similar to the rasterize.js example included with the pahntom install).</p> <p>The phantom script I have works fine, it's just my employer wants a node script if possible. No problem, I can use the <a href="https://github.com/alexscheelmeyer/">node-phantom</a> node module to wrap it.</p> <p>But now I've hit a stumbling block, my phantom script has:</p> <pre><code>var page = require('webpage').create(); </code></pre> <p>So, node.js is trying to find a module called 'webpage', the 'webpage' module is built into the phantom install so node can't find it. As far as I can tell, there is no npm module called 'webpage'.</p> <p>'webpage' is used like this:</p> <pre><code>page.open(address, function (status) { if (status !== 'success') { // --- Error opening the webpage --- console.log('Unable to load the address!'); } else { // --- Keep Looping Until Render Completes --- window.setTimeout(function () { page.render(output); phantom.exit(); }, 200); } }); </code></pre> <p>where address is the url specified on the command line and output is another argument, the name and type of the file.</p> <p>Can anyone help me out? This is quite an abstract one so I'm not expecting much if I'm honest, worth a try though.</p> <p>Thanks.</p> <p>EDIT - Approx 2hrs later</p> <p>I now have this which throws out a PDF:</p> <pre><code>var phanty = require('node-phantom'); var system = require('system'); phanty.create(function(err,phantom) { //var page = require('webpage').create(); var address; var output; var size; if (system.args.length &lt; 4 || system.args.length &gt; 6) { // --- Bad Input --- console.log('Wrong usage, you need to specify the BLAH BLAH BLAH'); phantom.exit(1); } else { phantom.createPage(function(err,page){ // --- Set Variables, Web Address, Output --- address = system.args[2]; output = system.args[3]; page.viewportSize = { width: 600, height: 600 }; // --- Set Variables, Web Address --- if (system.args.length &gt; 4 &amp;&amp; system.args[3].substr(-4) === ".pdf") { // --- PDF Specific --- size = system.args[4].split('*'); page.paperSize = size.length === 2 ? { width: size[0], height: size[1], margin: '0px' } : { format: system.args[4], orientation: 'portrait', margin: '1cm' }; } // --- Zoom Factor (Should Never Be Set) --- if (system.args.length &gt; 5) { page.zoomFactor = system.args[5]; } else { page.zoomFactor = 1; } //---------------------------------------------------- page.open(address ,function(err,status){ if (status !== 'success') { // --- Error opening the webpage --- console.log('Unable to load the address!'); } else { // --- Keep Looping Until Render Completes --- process.nextTick(function () { page.render(output); phantom.exit(); }, 200); } }); }); } }); </code></pre> <p>But! It's not the right size! The page object created using the phantom 'webpage' create() function looks like this before it's passed the URL:</p> <p><img src="https://i.stack.imgur.com/LpSQB.png" alt="phantom returned page"></p> <p>Whereas mine in my node script, looks like this:</p> <p><img src="https://i.stack.imgur.com/jRFIJ.png" alt="my page"></p> <p>Is it possible to hard code the properties to achieve A4 formatting? What properties am I missing?</p> <p>I'm so close!</p>
 

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