Can I download file from URL link generated by google apps script - google-apps-script

Question

Please help I'm learning google-apps-script for short time.
I want to download file from remote site by url generating from data that stores in my spreadsheet.
for example, i have 2 paremeters:
Cell1 = val1, val2, ... valN
Cell2 = val21, val22, ... val2N
I split string from cell data to Arrays and than generate URL. for example: http://mysite.com/files/file.val1.val22.zip
Than i need to download file from this link...
Can I do this process automaticaly ?

Answer 1

This example function will retrieve your zip file, and place it into your Google Drive in folder "StackOverflow". You can also download a more complete version from this gist.
function getFile(fileURL) {
// see https://developers.google.com/apps-script/class_urlfetchapp
var response = UrlFetchApp.fetch(fileURL);
var fileBlob = response.getBlob()
var folder = DocsList.getFolder('StackOverflow');
var result = folder.createFile(fileBlob);
debugger; // Stop to observe if in debugger
}
For example:
getFile( "http://mysite.com/files/file.val1.val22.zip" );
Note that you cannot download per se, since you have no access to your PC's resources (e.g. file system) from apps-script. The file is still in "the cloud"... in this case, it's been copied from the web site it was on, into Google Drive. If you're running the Drive app, though, the file will now sync to your PC.

Answer 2

Yes, You can.
Hope below code can solve your problem:
//Declare function
function downloadFile() {
//Getting url,existing name and new name for image from the sheet in
//variable url, name and new_name respectively
var sh = SpreadsheetApp.getActiveSheet();
var row = sh.getLastRow();
Logger.log(row);
for (var i = 2; i <= row; i++) {
var url = sh.getRange(i, 10).getValue();
Logger.log(url);
var name = sh.getRange(i, 13).getValue();
var new_name = sh.getRange(i, 4).getValue();
//Creating authentication token for downloading image, it may not be //required if image can be downloaded without login into
var user = "***************";
var password = "************";
var headers = {
"Accept": "application/xml",
"Content-Type": "application/xml",
"Authorization": "Basic " + Utilities.base64Encode(user + ":" + password)
};
//defining method to download file
var options = {
"method": "get",
"headers": headers
};
//Getting folder name where to store downloaded image
var folders = DriveApp.getFoldersByName('test');
while (folders.hasNext()) {
var folder = folders.next();
Logger.log(folder.getName());
}
//Getting response on hit of url using downloading method defined //earlier storing in Blob
var response = UrlFetchApp.fetch(url, options).getBlob();
//Creating image in folder defined with response in blob and logging same file //in log to check, if required
var file = folder.createFile(response);
Logger.log(file);
//renaming image
var images = folder.getFiles();
while (images.hasNext()) {
var image = images.next();
file.setName(new_name);
Logger.log(image.getName());
}
}
}
//Hope you get it now

Answer 3

It's worked for me.
function downloadFile() {
var url = "https://raw.githubusercontent.com/hoat23/VisionArtificialAndImageProcessing/master/bin/utils_imgprocessing.py"
Logger.log(url);
var response = UrlFetchApp.fetch(url);
var text = response.getContentText()
var newFile = DriveApp.createFile('testfilegoogle.txt',text);
debugger; // Stop to observe if in debugger
}
//Hope you get it now