How can I approach deleting an object file from an S3 bucket?

262    Asked by ColinPayne in AWS , Asked on Apr 12, 2024

I am currently developing an application that can allow users to upload files to an S3 bucket. As a part of the application’s functionality, the users should also be able to delete specific files that they had uploaded. How can I implement the logic for deleting an object file from an S3 bucket programmatically? 

Answered by David

 In the context of AWS, here is how you can implement the logic for deleting an object file from an S3 bucket programmatically by using the AWS SDK for Python programming language:-

Set up. AWS SDK for Python

You should try to make sure that you have Boto3 installed.

Initialize the boto 3 client

Try to initialize the boto 3 client for S3 by providing your AWS credentials or you can also use the IAM role with the appropriate permissions.

Delete the Object from the S3 bucket

You can use the “delete_object” method of the S3 client to delete the desired Object file from the specific S3 bucket.

Here is an example given in Python which would Demonstrate how you can delete an object from an S3 bucket:-

Import boto3

Def delete_s3_object(bucket_name, object_key):
    # Initialize Boto3 S3 client
    S3_client = boto3.client(‘s3’)
    Try:
        # Delete the object from the specified S3 bucket
        S3_client.delete_object(Bucket=bucket_name, Key=object_key)
        Print(f”Object with key ‘{object_key}’ deleted successfully from bucket ‘{bucket_name}’.”)
    Except Exception as e:
        Print(f”Error deleting object: {e}”)
# Example usage
Bucket_name = ‘your_bucket_name’
Object_key = ‘path/to/your/object/file.txt’
Delete_s3_object(bucket_name, object_key)

Here is the same example given in Java programming language:-

Import com.amazonaws.auth.AWSStaticCredentialsProvider;
Import com.amazonaws.auth.BasicAWSCredentials;
Import com.amazonaws.client.builder.AwsClientBuilder;
Import com.amazonaws.services.s3.AmazonS3;
Import com.amazonaws.services.s3.AmazonS3ClientBuilder;
Import com.amazonaws.services.s3.model.DeleteObjectRequest;
Import com.amazonaws.services.s3.model.S3Object;
Public class S3ObjectDeletion {
    Public static void main(String[] args) {
        // Set your AWS credentials and region
        String accessKey = “your_access_key”;
        String secretKey = “your_secret_key”;
        String region = “your_s3_bucket_region”;
        String bucketName = “your_bucket_name”;
        String objectKey = “path/to/your/object/file.txt”;
        // Initialize AWS credentials and S3 client
        BasicAWSCredentials awsCreds = new BasicAWSCredentials(accessKey, secretKey);
        AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
                .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(“s3.” + region + “.amazonaws.com”, region))
                .build();
        // Delete the object from the specified S3 bucket
        Try {
            S3Client.deleteObject(new DeleteObjectRequest(bucketName, objectKey));
            System.out.println(“Object with key ‘” + objectKey + “’ deleted successfully from bucket ‘” + bucketName + “’.”);
        } catch (Exception e) {
            System.err.println(“Error deleting object: “ + e.getMessage());
        }
    }
}


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