I'm running URLFetchApp Requests to an Amazon S3 Server to pull Audio Files and relocate them to Google Drive. The HTTPResponse comes back in XML format.
I run the following code to convert into a workable blob that can be stored in Google Drive:
/*driveAppFolder, fileName, response are pre-defined variables from earlier in the program*/
var responseBlob = response.getBlob();
var driveAppFile = driveAppFolder.createFile(blob).setName(fileName);
This code works flawlessly up to a certain size. I haven't figured out the limitation yet, but I know a 50MB file (52657324 bytes) will prevent the blob from generating with the error:
InternalError: Array length 52389150 exceeds supported capacity limit.
I realize a similar JavaScript error was handled here, but I am locked in the confines of Google Apps Script currently. Is there a way I can work around this sort of limitation and get the blob made?
How about this answer? 50 MB is 52,428,800 bytes. At Google Apps Script, there are the limitation of the size of blob. The maxmum size is 52,428,800 bytes. So in your situation, such error occurs. In your situation, you download such large file. When you download it, how about using the following methods?
Use partial download by range.
Use a library for downloading large files from URL.
This library uses the partial download.
References:
Partial download
Sample script of partial download
Library for downloading large files from URL
Related
I have a Javascript widget that creates .wav files. After running it, a Base64 representation of the file is generated, so that the user can play it in the browser. To download it, I then put the Base64 as the href of an element with the download attribute and programatically click it.
This all works fine and relatively quick for small files. However, if my Base64 exceeds about 2^21 characters in length (only 16 seconds of audio!), I get no download window to open.
Is there any other way I can get the download to work with files this large, without having to first upload the files elsewhere?
Edit: I'm using the latest version of Chrome. Firefox doesn't seem to have this issue.
I'm attempting to write a web page that loads an upwards of a gigabyte of binary data. The page is ran directly off the local disk, not from a web server.
I tried encoding the data as base64 and embedded it through a script file, but the browser slowed to a crawl and eventually crashed from out-of-memory errors. I then tried encoding the data as an Uint8Array, but it ran into the same problem. I've also tried breaking the binary data down into multiple files and retried both methods on them, but it reached the point where I had over 100 script files and the browser still ran into out-of-memory errors.
So far, the only way to load the data into memory is to use the File API. However, it's not intuitive to have to select these files every time in order to use the web page.
Are there any other methods for reading large binary data into a web page without having to use the File API? I can't use AJAX/fetch because this is ran directly off the local disk.
I have a program written in Node using the "RingCentral" package, the program downloads faxes sent to a RingCentral account. When the faxes are in PDF format everything works correctly, however if the fax attachment happens to be a TIFF image (only very few are) the data returned seems to be incomplete, it is always 390 bytes. Inspecting the file shows that it is indeed the TIFF image (starts with II*).
Has anyone come across this issue? Is there a way to force all faxes to be stored as PDF by RingCentral?
Thanks,
-Carlos
RingCentral supports storing faxes as PDF and TIFF files. The configuration preference is available per extension. Upon retrieval, the Content-Type HTTP response header will be set to application/pdf or image/tiff
You could check to see if the response header has "Content-Type" : 'image/tiff', so as to save the attachment as .tiff file format when you retrieve the faxes via the message-store endpoint :
GET /account/~/extension/~/message-store
For more information you could refer to our RingCentral-Fax-FAQ
For any support related issues, please open a case with our developer support at :
Portal : https://developer.ringcentral.com/support.html
Email : devsupport#ringcentral ( with the necessary details )
After rerunning my test again I realized these faxes are also having problems through the web interface, so the attachment must be corrupted for some reason.
Glad you found your issue and it was due to actual corrupted faxes in the comment thread. For others that come across this, here's some information on how to test TIFF files.
if the fax attachment happens to be a TIFF image (only very few are) the data returned seems to be incomplete, it is always 390 bytes[...] Has anyone come across this issue?
Downloading TIFF images works fine for me using the RingCentral API. I used the fax_download.rb script in the community Ruby SDK. I used the fax_send.rb demo script to send the test_file.pdf included in the SDK to an extension configured for TIFF files and was able to download and read it as a 14538 byte TIFF file using the fax_download.rb script.
Resource links:
Ruby SDK
fax_send.rb
fax_download.rb
test_file.pdf
Is there a way to force all faxes to be stored as PDF by RingCentral?
There is a file type configuration setting for PDF and TIFF per extension as mentioned by #CarpeDiem above. Having all extensions configured for PDF would ensure all stored faxes were in PDF format. This can be set by RingCentral support on the backend, but I'm not sure if there is a customer facing setting.
Say I have a webapp which executes in its entirety on the client-side. Its purpose is to act as a file conversion utility, for example converting a user's local stored word document into a PDF.
So with the user's permission, the app can read a specified local file and process it, in memory, into PDF format.
How can I get the user to 'download' the result? since the data is held in the browser's memory anyway, I do not wish to upload it to some server.
[edit]
No flash based solutions
Expected file sizes to be up to 15mb
The solution for my case will be to use the HTML5 FileSaver API.
Perhaps this question should just be closed as it is effectively a duplicate of
Using HTML5/Javascript to generate and save a file
Thanks to aefxx
I want to allow a web site users to be able to download files from my site, but with the help of a client-side downloader with an ability to continue an interrupted download.
For example, I want to sent a person a file with a size of 30+ Meg. I want the user to have the best downloading experience, so I can't afford him downloading 25 Meg and then getting the download dropped due to the network problems on his side.
Therefore, I want to have a javascript downloader rendered on a download page, that will show the actual client-side file delivery, and when it is downloaded, to give an ability to a user to save the file.
Or is it not possible due to the fact that javascript won't be able to open a save file dialog and save to a file system?
I'm afraid that is not possible with JavaScript and that's why:
To continue downloading from the certain point you should send to the server the position number to start downloading from. And as JavaScript has no access to local file system, you can't get that position.
UPD: it seems that I was too hurrying with the reply.
The file size can be gotten using the HTML5 File API and after getting the file size you can pass it to the server which should support the partial downloading.
But anyway, after downloading another part of the file you should sew two pieces together in some way; standard web browser dialog will only suggest to overwrite the file.
UPD2: to work with files in some Internet Explorers you can use FileSystemObject:
var fso;
fso = new ActiveXObject("Scripting.FileSystemObject");
I'd look into making a plugin or extension. Like those DownloadThemAll extensions for firefox and Google chrome. Another alternative would be to use Flash, either alone or integrating it with javascript like hinted here: http://www.communitymx.com/content/article.cfm?cid=0922A