Generate S3 persigned url

presigned.py

import boto3
from botocore.client import Config

from flask import Flask, request, jsonify

app = Flask(__name__)

AWS_ACCESS_KEY = ""
AWS_SECRET_KEY = ""
BUCKET_NAME = ""


@app.route('/get_presigned_url', methods=['POST'])
def get_presigned_url():
    object_key = request.json.get('object_key')
    expires_in = 36000  # URL expiration time in seconds

    s3_client = boto3.client(
        's3', aws_access_key_id=AWS_ACCESS_KEY, aws_secret_access_key=AWS_SECRET_KEY, region_name='ap-southeast-1', config=Config(signature_version='s3v4'))

    presigned_url = s3_client.generate_presigned_url(
        'put_object',
        Params={'Bucket': BUCKET_NAME, 'Key': object_key},
        ExpiresIn=expires_in,
        HttpMethod='PUT'
    )

    return jsonify({'presigned_url': presigned_url})


if __name__ == '__main__':
    app.run(debug=True)