nodejs upload to s3 code example
Example 1: how to upload file to s3 nodejs
const fs = require('fs');
const AWS = require('aws-sdk');
const s3 = new AWS.S3({
accessKeyId: process.env.AWS_ACCESS_KEY,
secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY
});
const fileName = 'contacts.csv';
const uploadFile = () => {
fs.readFile(fileName, (err, data) => {
if (err) throw err;
const params = {
Bucket: 'testBucket',
Key: 'contacts.csv',
Body: JSON.stringify(data, null, 2)
};
s3.upload(params, function(s3Err, data) {
if (s3Err) throw s3Err
console.log(`File uploaded successfully at ${data.Location}`)
});
});
};
uploadFile();
Example 2: how to download array of files from aws s3 using aws sdk in nodejs
const exec = require('child_process').exec;
exec('aws s3 sync s3://yourbucket .', (err, stdout, stderr) => {});
Example 3: how to download array of files from aws s3 using aws sdk in nodejs
function listFiles(cb) {
s3.stuff(params, cb);
}
function downlaodFile(key, cb) {
s3.stuff(key, cb);
}
listFiles(function (err, fileKeys) {
if (err) {
throw err;
}
async.each(fileKeys, downloadFile, function done(err) {
if (err) {
throw err;
}
});
});