Hello @arais,
Welcome to the forum!
You have two general options how to publicly share an object:
- Use a Linksharing service: Explaining the Linksharing Service - Storj Docs.
- Use a Storj-hosted S3-compatible Gateway with presigned URLs (python example), you may also use AWS SDK: AWS SDK Nodejs - Storj Docs, see also Sample NodeJS and React code using presigned urls and AWS SDK V3