Write a file to S3 in Node.js

January 7, 2022

Once I had figured out how to read a file from S3, I then had to write one. Given that the text I had to write wasn’t large, this turned out to be very straightforward. Tested with AWS SDK v3.45.

const AWS = require("@aws-sdk/client-s3");

const writeFile = async (bucket, filename, text) => {
    const s3 = new AWS.S3();

    await s3.putObject({
        Bucket: bucket,
        Key: filename,
        Body: Buffer.from(text)
    })
}