This is the working flow of my application:

1. Get the data from sources.
2. Perform some operations.
3. Save the data on a csv file created locally.
4. After the completion, upload the csv to S3 and delete the local file.

However, when I tried to deploy this application in heroku, I get an error in writeFileSync and cannot create files. To tackle that, I want to store the csv values in a nested array, and then upload directly to S3 as a csv file without local interference.

How do I achieve this? If there are better approaches, please do mention.

CodePudding user response：

Yes, you can write strings directly to S3 using the AWS SDK's putObject method.

The Body parameter can be one of:

• Buffer
• string value
• stream