Upload files to a specific folder in the bucket with AWS SDK

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I'm uploading images to AWS S3 with the developer toolkit for node:

const aws = require('aws-sdk');

const s3Bucket = process.env.S3_BUCKET;
    const s3 = new aws.S3({
      signatureVersion: 'v4',
      region: process.env.S3_REGION,
      accessKeyId: process.env.S3_ACCESS_KEY_ID,
      secretAccessKey: process.env.S3_SECRET_ACCESS_KEY,

    const s3Params = {
      Bucket: s3Bucket,
      Key: filename,
      Expires: 60,
      ContentType: filetype,
      ACL: 'public-read',

This works but how can I make image be uploaded to a specific folder in the bucket?

Amazon S3 is a flat storage system that does not actually use folders.

Rather, the Key (filename) includes the full path of the object, eg:


The Amazon S3 management console does show bucket contents within folders, but they are an artificial construct (called common prefixes) to make it easier for us humans to understand.

So, if you want to upload to a particular folder, just include the full path in the Key and it will work (or, more accurately, pretend to work!).

Fun fact: You can copy to folder that doesn't exist, and the folder will be 'created' for you. Then, if you delete the object, the folder will be 'deleted', because it never actually existed!

Upload a file to a specific folder, I was able to upload a to an Amazon S3 bucket using AWS SDK for .NET, but I don't know how to upload a file to a specific folder or subfolder  Upload a File to a Bucket. The Upload function uploads an object to a bucket. The following example uploads a file to a bucket with the names specified as command line arguments. Create the file s3_upload_object.go. Add the following statements to import the Go and AWS SDK for Go packages used in the example.

Actually, we have not the folder object in S3 and all about the key name. When you put the folder likes in your key name for example "folder/myfile.txt," you can see that as a folder on the S3 browser.

The similar question: https://serverfault.com/questions/435827/what-is-the-difference-between-buckets-and-folders-in-amazon-s3

How do I upload files and folders to an S3 bucket?, By default, the API uploads only the files at the root of the specified directory. You can The following C# example uploads a directory to an Amazon S3 bucket. The following C# example uploads a file to an S3 bucket using the low-level multipart upload API. For information about the example's compatibility with a specific version of the AWS SDK for .NET and instructions for creating and testing a working sample, see Running the Amazon S3 .NET Code Examples .

AWS S3 does not have the folder structure. it shows like folder inside S3 bucket but that is Key structure. I used the copy command in one of my work. copying file in S3 bucket folder.

aws s3 cp myapp.zip s3://$S3_BUCKET_NAME/FolderName/FileName


aws s3 cp myapp.zip s3://$S3_BUCKET_NAME/MyFolder/MyFileName

No need to create any folder in AWS S3 bucket it will create the specific folder if it does not exists

The above code is copying myapp.zip file inside the folder - MyFolder of S3 bucket with the file name MyFileName

Upload a directory - Amazon Simple Storage Service, Why can't I access a specific folder or file in my Amazon S3 bucket? By default, an S3 object is owned by the AWS account that uploaded it. In the Bucket name list, choose the name of the bucket that you want to upload your folders or files to. In a window other than the console window, select the files and folders that you want to upload. Then drag and drop your selections into the console window that lists the objects in the destination bucket.

Resolve Issues Accessing a Specific S3 File or Folder, To upload a file to an S3 bucket, use the TransferUtility class. When uploading data from a file, you must provide the object's key name. If you don't, the API uses​  This tutorial explains some basic file/folder operations in an AWS S3 bucket using AWS SDK for .NET (C#). First, we create a directory in S3, then upload a file to it, then we will list the content of the directory and finally delete the file and folder. We show these operations in both low-level and high-level APIs.

Upload a file to an S3 Bucket using the AWS SDK for .NET (high , An object named with a trailing "/" displays as a folder in the Amazon S3 console. Therefore, the way to create a folder "xyz" is to create an  Example of uploading objects (a large as 5 GB) to Amazon S3 in a single operation with the AWS SDK for .NET. Upload an Object Using the AWS SDK for .NET - Amazon Simple Storage Service AWS Documentation Amazon Simple Storage Service (S3) Developer Guide

Upload files to a folder that is inside the S3 bucket?, console.log(`provided folder '${distFolderPath}' is empty or does not exist.`);. console.log('Make if (error) { throw error; }. // upload file to S3. s3.putObject({. Bucket: config. Added one that works on windows and keeps the file structure intact  As other have already said, everything in S3 is an object. To you, it may be files and folders. But to S3, they're just objects. If you don't need objects which end with a '/' you can safely delete them e.g. via REST api or AWS Java SDK (I assume you have write access).