upload text to aws s3 with node.js and aws lambda

uploadTextToS3.js

const AWS = require('aws-sdk')

exports.handler = async (event) => {
    console.log('event', event)
    const payload  = JSON.parse(event.body)
    const url = await uploadFile(payload.text)
    console.log('url', url);
    const response = {
        statusCode: 200,
        body: url,
    };
    return response;
};

async function uploadFile(fileContent) {
    const s3 = new AWS.S3({ apiVersion: '2006-03-01', region: process.env.AWS_REGION });
 
    const params = {
        Bucket: process.env.AWS_S3_BUCKET,
        Key: process.env.FILENAME,
        Body: fileContent,
        ACL: "public-read",
    };
 
    const data = await s3.upload(params).promise();
    return data.Location;
}