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Uploading video file to Amazon S3 from an url without having to download the file in java

I'm trying to upload a file from a Zoom recording to Amazon S3. I have the download url but I don't want to download the file in the server before uploading it to Amazon S3 to avoid using all the resources. Is there a way to do that?

You can use the method put that uses a stream to upload an object on AmazonS3:
Uploads the specified input stream and object metadata to Amazon S3 under the specified bucket and key name
So basically you can:
download from zoom as stream
use this stream as parameter to AmazonS3
In this case you don't need to store locally the file because the stream is redirected to AWS.

Upload images added to gallery to aws s3 folder automatically from background

I have an android application which have integrated with aws cognito(user and identity pools) and aws s3.Sign up and sign in features are working fine and after signing in user can view the images in s3 bucket related to his/her folder in s3 bucket. When user is signing in a directory in s3 bucket is created.Currently images should be uploaded to the relevant folder manually through the aws s3 console.
Now what I want to do is, when new images are added to the gallery(through camera or downloaded from somewhere) it should be uploaded to the user's relevant folder automatically even when the app is closed(similar like google photos app).
I don't know is there a method in android to get notified when new image(s) added to the gallery and get that image.(I don't want to delete the image in the s3 when an image is deleted in gallery)
And if notified can it be uploaded to the s3 bucket from background since in a token expiry situation user have to sign in again(as I know)?
What I want to know is, is this task possible to do?
If possible what is the preferred solution and basic steps I should follow to solve my problem?

Play Framework file upload to in memory to S3

I am writing a web server with Play framework 2.6 in Java. I want to upload a file to WebServer through a multipart form and do some validations, then upload the file s3. The default implementation in play saves the file to a temporary file in the file system but I do no want to do that, I want to upload the file straight to AWS S3.
I looked into this tutorial, which explains how to save file the permanently in file system instead of using temporary file. To my knowledge I have to make a custom Accumulator or a Sink that saves the incoming ByteString(s) to a byte array? but I cannot find how to do so, can someone point me in the correct direction?
thanks

How to access the files from a s3 storage using java

I have created my vm in aws using ec2 instance. Also i have created a bucket in s3 storage and some folders in that bucket. I have my java jar file in filezilla and now i want to run my application. This scenario is working ok in the case when I have my filed I want to access in filezilla also but now that I want to create a s3 storage instance I do not know how can my java application can access these folders. Do I need to create a new java class in my application in order to access these folders from s3 storage?
I am not quite familiar with aws and I will appreciate any help from you guys.Even if you send me some useful links which solve my problem it will be a great help for me.
Thanks in advance

How to put object to S3 via CloudFront

I'd like to upload image to S3 via CloudFront.
If you see the document about CloudFront, you can find that cloud front offers put method for uploading to cloudFront
There could be someone to ask me why i use the cloud front for uploading to S3
If you search out about that, you can find the solution
What i wanna ask is whether there is method in SDK for uploading to cloud front or not
As you know , there is method "putObejct" for uploading directly to S3 but i can't find for uploading cloud front ...
please help me..

Data can be sent through Amazon CloudFront to the back-end "origin". This is used for using a POST on web forms, to send information back to web servers. It can also be used to POST data to Amazon S3.
If you would rather use an SDK to upload data to Amazon S3, there is no benefit in sending it "via CloudFront". Instead, use the Amazon S3 APIs to upload the data directly to S3.
So, bottom line:
If you're uploading from a web page that was initially served via CloudFront, send it through CloudFront to S3
If you're calling an API, call S3 directly

If the bucket's region is far away from the uploading computer you can upload faster by enabling S3 Accelerate which uploads directly through the Amazon server located closest to you and then continues sending the file from there to the bucket's actual region at an optimal route.
Have a look here.