This tool is a Go application that generates presigned URLs for all objects in a specified Backblaze B2 bucket. The presigned URLs allow you to download objects securely and are written to a presigned_urls.txt file.

中文

• Generate Presigned URLs: Creates presigned URLs for all objects or objects with a specific prefix in a Backblaze B2 bucket.
• Customizable URL Expiration: Set the expiration time for the presigned URLs.
• Environment Configuration: Uses a .env file to manage configuration and credentials securely.
• Support for Object Prefixes: Optionally generate URLs for objects with a specific prefix.

• Go Language: You need to have Go installed (version 1.16 or higher recommended).
• Backblaze B2 Account: A Backblaze B2 account with an application key and key ID.

1. Clone the Repository:

git clone https://github.com/JasonL111/S3_presigned_URL.git
cd S3_presigned_URL

2. Install dependencies go mod tidy

1. Prepare the .env file: Create a .env file in the root directory of the project. Example::

   B2_KEY_ID=your-key-id
   B2_APPLICATION_KEY=your-application-key
   B2_ENDPOINT=endpoint
   B2_REGION=region
   B2_BUCKET_NAME=your-bucket-name
   DURATION_TIME=Validity-hour-of-URL
   PREFIX=optional-prefix

   Configuration Notes: B2 Endpoint must include the https:// prefix, e.g., https://s3.us-west-001.backblazeb2.com Region can be extracted from the endpoint, example: If endpoint is s3.us-west-001.backblazeb2.com, then region is us-west Backblaze B2 endpoint and key information can be found in your Backblaze account dashboard
2. Run the program: go run main.go

• AWS SDK for Go v2: under Apche2.0 License, see NOTICE2.txt
• godotenv: under MIT License https://mit-license.org/

This project is licensed under the Apache2.0 License. See the LICENSE file for details. Code base on https://github.com/awsdocs/aws-doc-sdk-examples, under Apache2.0 License, read NOTICE.