I want to upload large files on S3. I know there is an option multipart upload by which I can upload large file in parts. I read the documentation (http://docs.aws.amazon.com/mobile/sdkforios/developerguide/s3transfermanager.html) but didn't find any code for the multipart upload. I have successfully uploaded a file on server as a single file but I want to use multipart for large file.
Thanks.
IF you're still looking for a solution, you can check out my blog post on this subject: Taming the AWS framework to upload a large file to S3. For large files you will have to skip using the AWSTransferManager as it uses cognito credentials which are limited to an hour validity.
Related
How can I upload a file from an external service or app (iOS App, Go App, etc) to a Rails REST API which uses Active Storage local file storage?
All the tutorials I can find use HTML forms. I'd like to upload my files via a POST request to the Rails API. The main thing I am uncertain about is what headers and what kind of format I need to send the files in to the backend.
The solution was to just send normal form-data. I used Postman for testing which works great for file uploads as well http://getpostman.com
Base64 is useful for you, You can decode base64 then generate temp file and upload that file.
How I can upload a file to amazon s3 using multipart. I have gone through the all the AWS site but I did not find the code for objective-c or swift.
Could you please any one share your code for understanding purpose.
Refer this document then you can write code for multi part upload.
he minimum part size for a multipart upload is 5MB.
For my Rails application, I download a bunch of files from a remote URL to my application. I would like to directly upload them to Amazon S3, without needing a form to do the upload, since I will temporarily cache the file I downloaded on the EC2 instance.
I would also like to retain the links to the files I uploaded so I can download them later.
I am essentially reposting the files I downloaded.
I looked around, but most of the solution seem to involve form uploading to S3 with a user.
Is there s direct upload solution?
You can upload directly to S3 using the AWS SDK for Ruby. The easiest way is:
require 'aws-sdk'
s3 = Aws::S3::Resource.new(region:'us-west-2')
obj = s3.bucket('bucket-name').object('key')
obj.upload_file('/path/to/source/file')
Or you can find a couple other options here.
You can simply use EvaporateJS to achieve this. You can also take advantage of sending ajax request to update file name to the database after each file upload. Though javascript exposes few details your bucket is not vulnerable to hack as S3 service provide a bucket policy.
Just set the <AllowedOrigin>*</AllowedOrigin> to <AllowedOrigin>specificwebsite.com</AllowedOrigin> in production mode.
I'm writing an importation function from a remote service to our app which uses S3. I connect to an api using OAuth as authentication, so every request I make I need to attach the token in the header. The attachments must be copied to S3 and the model is using paperclip.
I read the file from the api (say origin) with a GET method which returns a response with the body filled in with the content and the header with filename and other information.
Q: Now that I have the body of the file in plain text, how do I store it in S3 (destination) with paperclip?
Alternatively
Q: I could upload the file to S3 (destination) using remote URL(as described here), but how do I attach the token to the paperclip request to the (origin) api?
thanks
You need to create an s3.yml in your config directory... Here's a detailed tutorial in setting up paper clip with rails 3: http://doganberktas.com/2010/09/14/amazon-s3-and-paperclip-rails-3/
I would suggest you use a conversion tool to generate either a PDF or an editable document, then upload that to s3... Here's a good PDF gem: http://ruby-pdf.rubyforge.org/pdf-writer/ and even a railscast to help: http://railscasts.com/episodes/78-generating-pdf-documents
and here's an rtf gem: https://rubygems.org/gems/rtf
Since you have the raw data that should work.
I have created a application via java-cilent-api to upload and download files in the Google Docs. after Doc up to 5GB,I try to upload a 4GB zip to Google docs and it complete it with no exception;however,the file is not appear in Google docs?? what is the maximum of the upload a file???
The maximum file size in a resumable upload request is 10GiB. For simple requests (not using resumable), the maximum file size is 2MiB.
At the end of the upload request (either resumable or simple), you should get the newly inserted resource's metadata back from the API. The metadata includes an alternate link which points to the web version of the file. Try going to this URL and see if the file exists.