How can I use the “PutObject” Operations for the purpose of handling the file uploads securely and effectively in your particular web-based application?

225    Asked by LachlanCameron in AWS , Asked on Mar 5, 2024

 I am currently working as a developer and I am currently working on a particular web-based application with file upload functionality. How can I implement the “putobject” operations for handling the file upload securely and effectively in your particular web-based application? 

Answered by Keiko Kanda

 In the context of AWS, you can implement the “PutObject” operations for the purpose of uploading the file in your particular web-based application by using the approaches which are given below:-

Handle file upload

You should receive the file uploaded by the user in your particular web-based application. This objective can be done by using the HTML forms with file input fields or you can use AJAX request.

Generate a unique key

You would need to generate a unique key or filename for the file that you have uploaded. Thus key would be used for the purpose of specifying the Object location in the bucket of S3.

Performing PutObject operations

You can use the AWS SDK’S PutObject operations for the purpose of uploading the file to Amazon S3. This particular operation would need to specify the parameters such as the name of the bucket, Object key, file content, and any additional metadata.

Import boto3

# Configure AWS credentials and S3 client

S3 = boto3.client(‘s3’, aws_access_key_id=’YOUR_ACCESS_KEY’, aws_secret_access_key=’YOUR_SECRET_KEY’)
# Define bucket name and object key
Bucket_name = ‘your-bucket’
Object_key = ‘path/to/uploaded/file/filename.ext’
# Read file content
With open(‘path/to/local/file/filename.ext’, ‘rb’) as file:
    File_content = file.read()
# Perform PutObject operation
Response = s3.put_object(
    Bucket=bucket_name,
    Key=object_key,
    Body=file_content
)
Print(“File uploaded successfully:”, response)


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