How to download and save a PDF file, which is received as attachment in response header in PhantomJS?

Question

I'm trying to download some PDF file using PhantomJS. There is no direct URL for downloading that PDF, as it calls some internal JavaScript function, when I click the submit button.

Here is the code that I am using to download PDF file:

 page.open(url, function(status){      page.evaluate(function(){          document.getElementById('id').click();      });  });  page.onResourceReceived = function(request){      console.log('Received ' + JSON.stringify(request, undefined, 4));  }; 

The 'id' is the element id for submit button. The problem here is that even though I am getting the response (inside onResourceReceived callback) as JSON format, but I'm not able to save the attachment as some PDF file.

When I run the above code, I get following output as JSON string:

 Received {     "contentType": "application/pdf",     "headers": [         // Some other headers.         {             "name": "Content-Type",             "value": "application/pdf"         },         {             "name": "content-disposition",             "value": "attachment; filename=FILENAME.PDF"         },     ],     "id": 50,     "redirectURL": null,     "stage": "end",     "status": 200,     "statusText": "OK",     "url": "http://www.someurl.com" } 

Please, suggest solutions using PhantomJS only. Thank you!

Answer 1

In general, I would recommend to stop using PhantomJS and have a look on Headless Chrome. Here is a nice article about this topic. I was using https://github.com/puppeteer/puppeteer for this purpose and it was an easily integrated solution.