Upload a file to S3 without writing to disk

Here is a simple nodejs code snippet for uploading a file to Amazon S3. It can be use for uploading a file to S3 in two ways.

1. Directly upload from BLOB
2. Upload form URI

• Initial a GET Request to a given URI to fetch data
• Pipe the data to S3 service
• Durning the piping, it can also execute a callback function to send the S3 response back.