Java upload file to s3. aws s3 sync local_folder s3://bucket-name.

service. impl. Amazon S3 uses checksums to validate the data in each file. class); Work with Amazon S3 pre-signed URLs. Feb 23, 2023 · File uploads are received and acknowledged by the closest edge location to reduce latency. Or It is mandatory for me to create a zip and then upload to s3. web. It still feels a bit surprising/weird that the Lambda's permissions are applied as the pre-signed URL's permissions, but I'm so glad this worked. Upload. AWS offers many services through its many APIs which we can access from Java using their official SDK. Apr 9, 2019 · If you're uploading a file using client. [Refer my code below] My code : The 'File' class from Java doesn't understand that S3 exists. When you run a high-level aws s3 command such as aws s3 cp, Amazon S3 automatically performs a multipart upload for large objects. – Sep 1, 2015 · Here is an example using camel xml dsl. parse(CONTENT_IMAGE), file); /* since the pre-signed URL from S3 contains a host, this dummy URL will. I'm testing different ways to upload small objects toS3 using "aws-java-sdk-s3". Trong bài viết này chúng ta sẽ tìm hiểu cách upload một file lên Amazon S3 Bucket sử dụng Spring boot. Mar 2, 2022 · When we want to upload the files there are 2 ways to do that: The first way is that the frontend will pass the file to your server via REST API and then you will call the s3 SDK to upload the file and return the result back to the frontend. Uploading a file with Amazon S3 with a specific folder structure. However, we can overwrite the object with new content, effectively “updating” it. I want to upload a file on s3 as zip. A multipart upload allows an application to upload a large object as a set of smaller parts uploaded in parallel. aws s3 sync local_folder s3://bucket-name. Until recently though, this SDK didn’t offer support for reactive operations and had only limited support for asynchronous access. So you have to know how much data you're uploading before you start. This string is base64 equivalent to image. Feb 7, 2021 · I've got a Java 11 Coretto lambda function where I download files from S3, zip them and upload the zip file to another S3 bucket. dev. PutObjectRequest request = new PutObjectRequest(bucketName, ruleFilePath, file); ObjectMetadata objectMetadata Feb 16, 2020 · But if you don't want to involve this path then you can directly upload the stream to s3. RestS3Service import org. In the Upload wizard, choose Add files. We're currently calling the following: File file = new File(localAsset. Vì vậy với tư cách là lập trình viên bạn nên chọn cách tốt nhất để lữu Jan 3, 2022 · Upload a file to S3 bucket with public read permission. Follow the Amazon S3 console instructions to upload all of the files you downloaded and extracted, Choose Upload. aws s3 mb <intermediary_bucket> --region <region_name>. As per my understanding there could be 2 ways to upload a file to S3:-Client's file gets uploaded to my server and i upload this file to S3 server using my credentials. We can compose a GetObjectRequest using builder pattern specifying the bucket name and key and then use s3 service client to get the object and save it into a byte array or file. Yes, you have to create a text file in S3 bucket and take a reference of the following code to update the file contents as per your requirement. Upload folder including empty subfolders to S3 (with AWS Java SDK) 0. Mar 31, 2013 · If you are able to achieve the first of the above tasks (you should have the file as a java. Pipe the OutputStream to an InputStream and accept the overhead of an extra thread (see this answer) Jun 12, 2020 · I am trying to upload an image from postimage. 2. To upload a large file, run the cp command: aws s3 cp cat. I am excluding the zip-creation code for you: Sep 3, 2013 · So what i'm trying to do is, in the filePath section i'm trying to pass the full path from the input form file you've selected to there but it simply doesn't work. You must be sure that the chunksize that you set balances the part file size and the number of parts. This is the message I keep getting: The authorization mechanism you have provided is not supported. For an explanation of the difference, see this SO question: May 5, 2019 · Given: AWS S3 Bucket named YOUR_BACKET_NAME with public access READ/WRITE. The examples include only the code needed to demonstrate each technique. Then, we can call the S3Client’s createMultipartUpload () method. Add the aws-crt artifact as a dependency at version 0. getObjectContent(). Now this file should be uploaded to S3 and should be accessed using the s3 url directly in my browser or html file. Method 1: use the botoS3 method set_contents_from_string May 5, 2021 · YOu can use that byte array and file name to put the file into an Amazon S3 bucket without saving it as a local file. /** * Serial upload of an array of media files to S3 using a presignedUrl. The following operation will perform an upload of the file s3File. If the EC2 instance is in the same region as Amazon S3 then there is no Data Transfer charge. 0') accessKey = 'accesskey' secretKey = 'secretkey' bucketName Jul 2, 2019 · Write a script to loop through the files then: Download. ZIP_DEFLATED) as zip_file: for ObjectKey in ObjectKeys: May 23, 2023 · This function must return a Writable stream to write each upload chunk to. S3 Multipartupload is where you divide the whole Jan 8, 2024 · AWS. upload_file() or other methods that have the ExtraArgs parameter, you specify the tags differently you need to add tags in a separate request. s3Client. putObject (new PutObjectRequest (bucketName, key, fileObj)); This is S3's simple upload. Navigate to the S3 console, and open the S3 bucket created by the deployment. It returns a CreateMultipartUploadResponse object. Upload file to S3 using java. X using TransferManager, but I'm trying not to mix V1 and V2 AWS JAVA SDKs in my project to keep it clean and to minimize the dependencies. png s3://docexamplebucket. 21. Using the file extension, Amazon S3 attempts to determine the correct content type and content disposition to use for the object. Here is code -. Each part is a contiguous portion of the object's data. 20. Location. I am using came 2. In this article, we will explore how to upload files to Amazon S3 using Java. You can test the api via HTTP client like postman & upload a document as a metadata. multipart. Need to upload a file to a public S3 bucket. putObject(testBucket, stringObject); To use the S3 Transfer Manager with enhanced performance based on the AWS CRT-based S3 client, configure your build file with the following dependencies. For this tutorial, we will use the following –. getLogger(S3Service. We can use the Upload command from @aws-sdk/lib-storage to create the request. This represents a hierarchical structure within the S3 bucket, where Jan 23, 2017 · Take a look at the Amazon S3 client putObject() function that includes an InputStream: public PutObjectResult putObject(String bucketName, String key, InputStream input, ObjectMetadata metadata) throws SdkClientException, AmazonServiceException Aug 14, 2015 · S3UploadService is a library that handles uploads to Amazon S3. S3Bucket import org. putObject Dec 15, 2020 · Linode seems to offer an API to generate presigned urls for interact with objects in S3. springframework. 10. It also needs to pipe each chunk of data to an S3 Object Storage. nio. I can use a for-each loop and s3Client. . Mar 3, 2017 · 2. Try Catch makes this a clumsy operation but it ensures that resources are closed in the least amount of code within a method. class); Now I want to put this byte array in a S3 bucket in a folder which I decide during run time, for Need to upload file on S3 in Java. I have tried a couple of methods but failed to open the image in browser, it is just downloading into my box. 1. // Download the XML from S3 into a stream. I have started working on AWS recently. Jul 5, 2021 · We are using Java 8 and using AWS SDK to programmatically upload files to AWS S3. copy() utility from java. rest. クライアント → サーバ → S3 とサーバを経由する場合は、クライアント側でBase64に変換した（ バイナリデータ → Base64 ）画像や音声ファイルを受け取る Note: A multipart upload requires that a single file is uploaded in not more than 10,000 distinct parts. jets3t:jets3t:0. 3. Zip. Here's an example of reading a file from the AWS documentation: AmazonS3 s3Client = new AmazonS3Client(new ProfileCredentialsProvider()); S3Object object = s3Client. You can find detailed information about AWS S3. FileOutputStream object, you run the risk of encountering a RestException when the AWS S3 Java SDK retries the file upload. * @param bucketName. txt in the S3 bucket with based on the content the file src/empty. AmazonS3 client = new AmazonS3Client(); /**. I am trying to upload files to Amazon S3 storage using Amazon’s Java API for it. Unless, of course, the OP has already used up all of the bandwidth he/she has available. First, we need to follow the steps below: Create a new bucket in Mar 31, 2020 · To upload a file on S3 via spring boot application, users need to ensure that they have created an S3 bucket and the corresponding IAM user. There is no default value. 8 in a Dropwizard app. If transmission of any part fails, you can retransmit that part without affecting other parts. When uploading files, the AWS S3 Java client will attempt to determine the correct content type if one hasn't been set yet. max_bandwidth: This value sets the maximum bandwidth for uploading data to Amazon S3. When the upload completes, a confirmation message is displayed. Note: In the following code examples, the files are transferred directly from local computer to S3 server over HTTP. Copies all bytes from an input stream to a file. I'm successful at uploading individual files, but couldn't find a way to upload the entire folder. If i change that filePath to a simple path located on my local machine it works fine. x-amz-expected-bucket-owner. Như các bạn đã biết hầu hết các ứng dụng mobile hay web đều có các tính năng tải lên các file ví dụ như hình ảnh video, v. Upload the data files to the new Amazon S3 bucket. How to use the AWS SDK for Java's TransferManager class to upload, download, and copy files and directories using Amazon S3. get_bucket (bucket_name) – Derek Pankaew. Apr 13, 2012 · This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. We are uploading a file using the Amazon AWS Java Library and are having difficulty obtaining upload progress. IAM user – some_public_user. Apr 29, 2016 · 3. Jun 10, 2021 at 23:53. File object or a java. 0, we can now use those APIs in fully non i have the working python code that success to connect and get files from S3: Use role_arn defined in aws config file in Java. The AWS APIs require a lot of redundant information to be sent with every 3. create(MediaType. txt. The latest API has a waitForUploadResult() method in the Upload interface. getinputstream(); ObjectMetadata metadata=new ObjectMetadata(); metadata. AWS account and S3 bucket """ transfer_callback = TransferCallback(file_size_mb) s3. The problem is that loading these files into memory is causing out of memory exceptions. I am currently working on developing upload functionality to S3 storage. Thank you. An object can be any kind of file: a text file, a photo, a video, and so on. Attach the objectMetadata to the request. v. However, I occasionally have large files that I need the upload. Following are the steps to write a sample Lambda function in Java to work with the files that are placed on Amazon S3 bucket. 3 or higher. See the AWS Lambda walkthroughs and API docs. Being small objects I use the default api (the Transfer API for large and huge objects. 1. PutObjectRequest(String bucketName, String key, InputStream input, ObjectMetadata metadata) where: input =file. While actions show you how to call individual service functions, you can see actions in context in their related scenarios and Dec 3, 2017 · Choose S3. Jul 9, 2018 · The first is in the documentation for PutObjectRequest: When uploading directly from an input stream, content length must be specified before data can be uploaded to Amazon S3. Press ‘ Create ’ button. Sep 1, 2017 · Calling code: String CONTENT_IMAGE = "image/jpeg"; File file = new File(localPhotoPath); // create new file on device. model. After all parts of your object are uploaded, Amazon S3 If I'm uploading data to S3 using the aws-cli (i. Using S3 multipart upload to upload large objects. Change your application to upload files in multiple parts, using S3 Multipart Upload, and use multi-threading to upload more than one part at a time. Thanks. <!--upload file to AWS S3 -->. AmazonS3 s3Client = new AmazonS3Client(); S3Object s3Object = s3Client. The complete example code is available on GitHub. Oct 22, 2017 · OMG, you totally saved me with this. Prerequisites Dec 18, 2021 · In this video, you will learn how to code a Java console program that uploads a file from local computer to Amazon S3 server programmatically, using AWS SDK When uploading a file: The client automatically computes a checksum of the file. def zipResults(bucketName, ObjectKeys): buffer = BytesIO() with zipfile. Use version 2. So you need neither an external library nor rolling your own byte array loops. You can use this method to batch upload files to S3 very fast. NOTE May 31, 2019 · I'm using presigned AWS S3 urls to upload files from a device with limited memory using Java. * The name of the bucket to place the new object in. No need to use streams. Jan 8, 2024 · In S3, objects are immutable, meaning we cannot modify the content of an object directly. And the second way is something called pre-signed URLs. When uploading directly from an input stream: Feb 28, 2013 · AWS File Upload to S3 with Java. getFileName(), file); s3. Jul 12, 2018 · Reading, writing and uploading a text file to S3 using AWS Lambda function in Java. This header specifies the base64-encoded, 256-bit SHA-256 digest of the object. Mar 29, 2014 · I have a base64 string. Prior to this, you need an AWS account, and need to create an S3 Bucket available with appropiate access. Curl takes the URL and uses that for upload to S3, but S3 returns 403 "The request signature we calculated does not match the signature you provided. Aug 23, 2022 · 4. Any idea what I am missing? I also tried to include the kms key to the request: Jan 10, 2019 · The files are quite large so I would like to be able to stream my upload into an s3 object. 19. 9. Jun 5, 2015 · It seems that . Note: The file must be in the same directory that you're running the command from. S3 bucket – assignment-s3-bucket. Delete local files. NOTE: Using Java's "try with resources" is convenient. Infact, it is just an "empty" image file of 11. Using only basic most popular Java Libs like Apache HTTP Client lib. Also, the article "Pushing the Limits of S3 Upload Performance" has some nice ideas on the subject. As the name suggests we can use the SDK to upload our object in parts instead of one big request. It might work. File object), the second task should be straightforward: AmazonS3 s3 = new AmazonS3Client (awsCredentials); s3. Feb 18, 2015 · Finally, you need to find a way to trigger this code - typically, in Lambda, this would be triggered automatically by upload of the zip file to S3. GET, entity, byte[]. You can upload these object parts independently and in any order. jets3t. Feb 16, 2023 · Split in parts and upload in parallel would be a good start, the TransferManager class can help with that. DEFAULT) With this code: bucket = conn. Mar 5, 2019 · Explicitly specifying the request via PutObjectRequest. MultipartFile object into a java. security. We tried that but it seems it does not speed it up, upload time remains almost the same as not using multipart upload. EU_WEST_1; Feb 5, 2019 · Recently, CloudStorageMaven for S3 got a huge upgrade, and you can use it in order to download or upload files from S3, by using it as a plugin. import org. getVideoFilePath()); PutObjectRequest putObjectRequest = new PutObjectRequest(bucket, localAsset. After that, we will write the content of that text file Multipart upload allows you to upload a single object as a set of parts. 5. For more information, see Checking object integrity in the Amazon S3 User Guide. Aug 15, 2020 · Base64の文字列からS3へアップロードする方法. Bucket(bucket_name). using aws s3 cp), does aws-cli do any work to confirm that the resulting file in S3 matches the original file, or do I somehow need to manage that myself? Based on this answer and the Java API documentation for putObject(), it looks like it's possible to verify the MD5 checksum after upload After creating a bucket in Amazon S3, you're ready to upload an object to the bucket. createMultipartUpload () method is called to initiate the multipart upload. Mar 26, 2023 · How to upload multiple files to AWS S3 using aws-java-sdk version 2?. Then press ‘ Create bucket ’ button. Giới thiệu. You can get the resource URL either by calling getResourceUrl or getUrl. answered Sep 17, 2019 at 19:14. java. AWSCredentials @Grab('net. Apr 26, 2021 · S3 multipart upload. If you can manually save dynamodb-geo. file. To put this into an AMazon S3 bucket, you can use this code: // Places the file into a S3 bucket. All the zip magic happens on local disk. Alternatively, you can use the following multipart upload client operations directly: create_multipart_upload – Initiates a multipart upload and returns an upload ID. Create bucket button. Wait until the file exists (uploaded) To follow this tutorial, you must have AWS SDK for Java installed for your Maven project. x. Here is my method: Scanner scanner = new Scanner(reader); String row; Apr 22, 2023 · If the file is not in the form of a java. getObject(new GetObjectRequest(. Integrating S3 file uploads in your Java application can improve your app’s scalability and data management. Thanks! – Feb 28, 2017 · I am trying to upload XML file from one bucket to another using aws SDK. ZipFile(buffer, 'w', compression=zipfile. Is there any method which will directly zip my file which I upload on s3. upload_file( local_file_path, object_key, Callback=transfer_callback ) return transfer_callback. upload_part_copy – Uploads a part by copying data Please note that if you click 'Upload' in the S3 UI, drag-and-drop the file, and then simply click 'Upload' then it may change the file's permissions. defaultClient(); Nov 29, 2023 · 1. create_bucket (bucket_name, location=boto. You can do so by setting ACL as Michael Astreiko suggested. getObject(new GetObjectRequest(bucketName, key)); InputStream objectData = object. Download file from S3 bucket. srcBucket, srcKey)); InputStream objectData = s3Object. Let’s suppose that we have a file stored in an S3 bucket called “ baeldung ” with the following path: “ path/to/my/s3article. putObjects(/* some args */);)? Alternatively, you can upload S3 via AWS CLI tool using the sync command. In this tutorial, we learn how to replace the existing file content with newer content for the same AWS S3 path using AWS Java SDK. To do so, I think I need to use a multipart upload however I'm not sure I'm using it correctly as nothing seems to get uploaded. Choose the name of the data folder. AWS-File-Upload. thread_info def upload_with_chunksize_and_meta( local_file_path, bucket_name, object_key, file_size_mb, metadata=None ): """ Upload a file from a local folder to an Amazon Jan 8, 2024 · Firstly we need to create a CreateMultipartUploadRequest instance and pass to it the bucket name and the key. jar in S3 (in the appropriate file structure and format), other users can automatically download this jar during their build. In the file selection dialog box, find the file that you want to upload, choose it, choose Open , and then choose Start Upload . size()); Use multiple threads for uploading parts of large objects in parallel. AWS CLI has an option called sync, does and equivalent methods available in Java SDK? Sample code for uploading individual objects is as below (only part) Jan 27, 2023 · Looks like there is no way to do this in a single operation, you need to upload the file then fetch the URL separately. In a spring boot application I read an image file from a remote service, which returns byte array and in headers I can check what is file extension: ResponseEntity<byte[]> result = restTemplate. For this scenario, we will read a text file which is placed inside an S3 bucket. org. Choose Upload image. AmazonS3Client s3Client = (AmazonS3Client)AmazonS3ClientBuilder. putObject(requestConfig, requestBody);, but is it possible to achieve this without using a loop, I mean just call one method and pass a list of files there (something like s3Client. A Java application to upload a file to S3 Bucket. Other details like AWS Access Id, AWS Secret Key, and S3 Bucket Region are hidden for Mar 9, 2014 · I don't have an S3 account to test with but here's a simplied example based upon the documenation:. After following the tutorials and examples provided by Amazon I still find myself unable to get the the upload to work. private static final Logger logger = LoggerFactory. e. Send the request via putObject method. Apr 7, 2017 · The code I used looks like this: First, call this function to get the zip object, ObjectKeys are the s3 objects that you need to put into the zip file. Upon completion, S3 combines the smaller pieces into the original larger object. Enter your bucket name (should be unique) and choose region that is closest to you. util. From there, you can download a single source file or clone the repository locally to get all the examples to build and run. To use the API, first, you can create two POJO that represent the request and response we will send and receive from the API so we can use to serialize an deserialize JSON information. exchange(url, HttpMethod. Just use the Amazon S3 download_file() and upload_file() calls. Users are responsible for ensuring a suitable content type is set when uploading streams. For uploading large file (>100MB), we read that the preferred method to use is Multipart Upload. S3Object import org. 1 or higher of the SDK for Java 2. jpg"; Then if i upload a ZIP file instead Jan 31, 2012 · Java then generates a pre-signed URL for S3 upload using my S3 credentials, and returns that in the ReST reply. getObjectContent(); and to upload the file, s3Client. File object: Sep 14, 2020 · Select Choose file and then select a JPG file to upload in the file picker. A sample of that script can be like this: #!/bin/sh. May 28, 2017 · I am using AWS SDK Java for file upload. ) Uploading a File as a source, perfect ! File file = . putObject(putObjectRequest); Nov 21, 2019 · I'm trying to upload an entire folder to AWS S3 bucket. For example, assume Alice has access to an S3 object, and she wants to temporarily share access to that object with Bob. The s3. putObject(request); but I get Access Denied AmazonS3ClientException. txt “. httpclient. While V2 of the SDK supports the "upload" and "putObject" functions, the V3 SDK only supports "Put Object" functionality as "PutObjectCommand". Pre-signed URLs provide temporary access to private S3 objects without requiring users to have AWS credentials or permissions. Nov 23, 2018 · 3. io. Creating a new ObjectMetadata and setting the SSEAlgorithm to it - "aws:kms". The code is java - upload image file into my aws s3 bucket through html file The maven-s3-wagon plugin enables maven to download/deploy files to S3. However, the image file is not same as the original image in postimage. S3. x with Amazon S3. RequestBody requestFile = RequestBody. org to Amazon S3 bucket using java sdk. Add the s3-transfer-manager artifact as a dependency. The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Java 2. Alice can generate a pre-signed GET request to share with Bob Oct 24, 2018 · For files over 5mb its recommended to use multi-part upload. May 16, 2018 · I am currently using the below procedure to download images from my S3 bucket and storing them to return a zip of the images to the user. For example, we lost the 'Public' read access, so we had to repeat the steps and add that permission. I would take the following steps: Enable Transfer Acceleration on your S3 bucket. Please use AWS4-HMAC-SHA256. 38. getObjectContent(); Jun 21, 2013 · Is there any way either in Java or using s3cmd to keep and preserve the modified date on the file as opposed to the LastModified Amazon sets with sysdate when you actually upload the file to S3 ? Amazon S3 seems to use the upload timestamp as the LastModified on the file, and not the original file date/timestamp. putObject(new PutObjectRequest(bucket, key, file)); Uploading ByteArrayInputStream, perfect ! Updloading For more information about Amazon S3 pricing, go to the Amazon S3 pricing page. Prerequisites. txt", "Hello World!"); s3Service. The two workarounds I can see so far are: Copy the OutputStream to an InputStream and accept that twice the amount of RAM is used. java file convert the org. Oct 6, 2011 · Since Java 7 (published back in July 2011), there’s a better way: Files. s3 = getClient(); Apr 16, 2024 · In this step, let’s focus on extracting essential information from a valid S3 URL, specifically the bucket name and the object key. AWS S3 offers scalable object storage, ideal for storing large amounts of data. In my particular use case, I only needed to support file upload via a pre-signed URL, so the s3:PutObject action was enough. If the file is already there, you may need to trigger it manually, via the invoke-async command provided by the AWS API. js SDK (V3). You can add metadata as follows, but this is not the same thing. connection. upload_part – Uploads a part in a multipart upload. aws s3 sync <intermediary_bucket> s3://<your_bucket_name>. In the Amazon S3 console, choose the bucket where you want to upload an object, choose Upload, and then choose Add Files. Hot Network Questions What stops a plane from rolling when the Mar 7, 2024 · This guide demonstrates how to upload files to Amazon Web Services (AWS) Simple Storage Service (S3) using Java. 1 Aug 4, 2015 · I use aws-java-sdk-s3 v1. Actions are code excerpts from larger programs and must be run in context. May 2, 2010 · With the s3cmd tool, for example, you can't skip creating temp file, while with the JetS3t Java library uploading a String directly would be easy: // (First init s3Service and testBucket) S3Object stringObject = new S3Object("HelloWorld. * be replaced completely by the pre-signed URL. With the release of the AWS SDK for Java 2. The request body can be a stream, but it must be a Readable stream, not a Writable stream. 5 kb. Aug 15, 2020 · So in order for you do replicate step 1, you have to write a small script that creates an intermediate bucket and uploads your local files to it. I can see that a file is created in s3 bucket at the folder location where I want it to be created. The following lines inside the FileServiceImpl. The plugin assumes that your environment is Jun 11, 2012 · First of all, you may have to make the file public before uploading because it makes no sense to get the URL that no one can access. Sep 12, 2017 · I'm developing an application that will make use of S3 storage from Amazon. In the bucket, you see the second JPG file you uploaded from the browser. <setHeader headerName="CamelAwsS3Key">. That returns an UploadResult object which has the getBucketName() and getKey() methods, you can then use those to get the URL using the AmazonS3 class Dec 18, 2020 · I have a S3 bucket that is defined with public access, nevertheless, when I upload a file into it, and access to the URL I have an access denied error: { Region region = Region. s3. If you're receiving an upload from the web and have a Content-Length header, then you can get the May 27, 2019 · I'm trying to upload the file like this: final PutObjectRequest request = new PutObjectRequest("[bucket-name]", file. Introduction. Should not use AWS SDK. Two examples below, both of which use the input stream from S3Object. getName(), file); s3Client. Base64の文字列からS3へアップロードする方法は以下です。. To upload files to an existing bucket, instead of creating a new one, replace this line: bucket = conn. . This works well with AWS SDK 1. It provides a service called S3UploadService with a static method where you provide a Context (so the static method can start the service), a File, a boolean indicating if said file should be deleted after upload completion and optionally you can set a callback (Not like an ordinary callback though. setContentLength(file. I'm currently using the AWS CLI tool to sync between a local directory and a S3 bucket. Like the following: String filePath = "C://Pics//logo. public String putObject(byte[] data, String bucketName, String objectKey) {. Jul 18, 2016 · This question was asked almost six years ago and I stumbled across it while searching for information on the latest AWS Node. * @param key. ai uv gw cl th rq fk vf pl sr