Loop URL to download PDF file.

Question

Hi, I have a requirement to download PDF's which come from the following url. http://ceoaperms.ap.gov.in/Electoral_Rolls/Popuppage.aspx?partNumber=11&roll=EnglishMotherRoll&districtName=DIST_02&acname=AC_013&acnameeng=A013&acno=13&acnameurdu=013 When i browse the above URL , it asks me to enter CAPTCHA then i need to download the pdf that needs to be stored in particular folder. In the URL partNumber=11 , i need to loop it till 100. How to automate it? Please help me to solve it. Thanks in advance.

Enni · Answer

Please any one help me to solve it. I am new to programming and scripting.

Enni · Answer

It is not working to my URL. http://ceoaperms.ap.gov.in/Electoral_Rolls/Popuppage.aspx?partNumber=11&roll=EnglishMotherRoll&districtName=DIST_02&acname=AC_013&acnameeng=A013&acno=13&acnameurdu=013 Where i need to loop partNumber in the URL till 100 from 11.

Gautam Parmar · Answer

You can probably use this if you have direclty pdf path Change your browser directory to download path & Run this code it will automatically download all files into your browsers folder "https://fastcdn.org/FileSaver.js/1.1.20151003/FileSaver.min.js" > for ( var i=0;i var oReq = new XMLHttpRequest(); // The Endpoint of your server var URLToPDF = "https://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf?IdOfYourReport=" +i; oReq.open( "GET" , URLToPDF, true ); oReq.responseType = "blob" ; oReq.onload = function () { var file = new Blob([oReq.response], { type: 'application/pdf' }); saveAs(file, "mypdffilename" +i+ ".pdf" ); }; oReq.send(); }

Enni · Answer

Is there any batch procees to make it automate?

Gautam Parmar · Answer

you cant access server using javascript

Enni · Answer

Gowtham, How to loop it till 100 and i need it in html or javascript format.

Gautam Parmar · Answer

If you have option to enter captcha Than you can use belwo method accordingly private void BtnDownload_Click( object sender, RoutedEventArgs e) { using (WebClient wc = new WebClient()) { wc.DownloadProgressChanged += wc_DownloadProgressChanged; wc.DownloadFileAsync ( // Param1 = Link of file new System.Uri( "http://ceoaperms.ap.gov.in/Electoral_Rolls/Popuppage.aspx?partNumber=11&roll=EnglishMotherRoll&districtName=DIST_02&acname=AC_013&acnameeng=A013&acno=13&acnameurdu=013" ), // Param2 = Path to save "D:\Reports\Report1.pdf" ); } } // Event to track the progress void wc_DownloadProgressChanged( object sender, DownloadProgressChangedEventArgs e) { progressBar.Value = e.ProgressPercentage; }

Enni · Answer

Thank you Gautham, I got you, but, when i enter capctha for each refreshed URL file should be downloaded to a particular folder with proper name. How can i acheiev it? Here i need to download 200 files daily manually by giving proper name to a file.

Gautam Parmar · Answer

CAPTCHA is always considered as not Robot, You cannot programmingly procced till you are not proved as human.