I have a file that is stored on AWS s3 at https://xyz.s3.amazonaws.com/foo/file.json and I want to download that into my local machine using Python. However, the URL cannot be accessed publicly. I have the Account ID, IAM user name, and password (but NO Access Key or Secret Access Key and no permissions to view/change them either) to the resource that contains this file. How can I programmatically download this file instead of doing so from the console?
You could generate an Amazon S3 pre-signed URL, which would allow a private object to be downloaded from Amazon S3 via a normal HTTPS call (eg curl). This can be done easily using the AWS SDK for Python, or you could code it yourself without using libraries. Answer by John Rotenstein
here
Related
I need to download a file from this URL https://desafio-rkd.s3.amazonaws.com/disney_plus_titles.csv with Python, try to do it with "" require.get '", but it returns me denied access. I understand that I have to authenticate. I have the key and the secret key, but I do not know how to do it.
Help me please?
The preferred way would be to use the boto3 library for Amazon S3. It has a download_file() command, for which you would use:
import boto3
s3_client = boto3.client('s3')
s3_client.download_file('desafio-rkd', 'disney_plus_titles.csv', 'disney_plus_titles.csv')
The parameters are: Bucket, Key, local filename to use when saving the file
Also, you will need to provide an Access Key and Secret Key. The preferred way to do this is to store them in a credentials file. This can be done by using the AWS Command-Line Interface (CLI) aws configure command.
See: Credentials — Boto3 documentation
I have a local .exe file and I want to make it available by https so everyone can download it.
example: "download my app here: https://look_how_downloadable_i_am.exe
If I can update the file with python and manually with interface, it would be perfect ! (the possibility to automate the process and keep it simple if done manually).
It's maybe possible with AWS S3 or/and Lambda.
The most straightforward way would be using an s3 bucket to enable downloads to the file.
Steps are:
Upload file to the bucket
Select the file after it gets uploaded, press actions and select make public
This will make the file publicly downloadable through its unique link. In order to use your own custom domain and link you will have to use CloudFront as #jordanm suggested.
You can also use a python script to update or download your file, you can find demo codes and documentations in Reference 3
Reference 1: How to create download link for an Amazon S3 bucket's object?
Reference 2: https://aws.amazon.com/premiumsupport/knowledge-center/read-access-objects-s3-bucket/
Reference 3: https://docs.aws.amazon.com/code-samples/latest/catalog/code-catalog-python-example_code-s3.html
You can use boto3 to programmatically upload a local file to a bucket, than just edit the buckets permissions to allow public read. Or instead of editing the buckets permissions, when uploading the file just edit the ACL s3.upload_file(upload_path, "bucket-name", file-key, ExtraArgs={'ACL': "public-read"})
upload_path just being the local file path, and file-key being the object name
I have been given a bucket name with ARN Number as below:
arn:aws:iam::<>:user/user-name
I was also given an access key.
I know that this can be done using boto.
Connect to s3 bucket using IAM ARN in boto3
As in the above link do i need to use 'sts'?
if so why am i provided with an access key?
First, I recommend you install the AWS Command-Line Interface (CLI), which provides a command-line for accessing AWS.
You can then store your credentials in a configuration file by running:
aws configure
It will prompt you for the Access Key and Secret Key, which will be stored in a config file.
Then, you will want to refer to S3 — Boto 3 documentation to find out how to access Amazon S3 from Python.
Here's some sample code:
import boto3
client = boto3.client('s3', region_name = 'ap-southeast-2') # Change as appropriate
client.upload_file('/tmp/hello.txt', 'mybucket', 'hello.txt')
I'm using an S3 compatible service. That means my dynamic storage is not hosted on AWS. I found a couple of python scripts that upload files to AWS S3. I would like to do the same but I need to be able to set my own host url. How can that be done?
You can use the Boto3 library (https://boto3.readthedocs.io/en/latest/) for all your S3 needs in Python. To use a custom S3-compatible host instead of the AWS, set the endpoint_url argument when constructing a S3 resource object, e.g.:
import boto3
session = boto3.session.Session(...)
s3 = session.resource("s3", endpoint_url="http://...", ...)
You can use amazon route53.
Please refer
http://docs.aws.amazon.com/AmazonS3/latest/dev/website-hosting-custom-domain-walkthrough.html
Creating a file (key) into Amazon S3 using Python (and boto) is not a problem.
With this code, I can connect to a bucket and create a key with a specific content:
bucket_instance = connection.get_bucket('bucketname')
key = bucket_instance.new_key('testfile.txt')
key.set_contents_from_string('Content for File')
I want to upload a file via the browser (file dialogue) into Amazon S3.
How can I realize this with boto?
Thanks in advance
You can't do this with boto, because what you're asking for is purely client-side - there's no direct involvement from the server except to generate the form to post.
What you need to use is Amazon's browser-based upload with POST support. There's a demo of it here.
do you mean this one? Upload files in Google App Engine