Question

Signed PUT Url for NodeJS

I heard you guys only support v2 for putObject signed urls. Which node.js clients should I use to create a signed url so I can upload files on the browser?

Subscribe
Share

Submit an answer
You can type!ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Support for v4 pre-signed URLs is in the works, but you can use v2 signatures with the AWS SDK as well. Depending on the version of the SDK you have installed, it maybe in use by default. (The latest version should when using a custom endpoint. Some older versions used v4 by default everywhere, but this change was reverted in version 2.152.0)

If needed, you can force the signature version when configuring your client:

const s3 = new AWS.S3({
    endpoint: spacesEndpoint,
    accessKeyId: 'YOURACCESSKEY',
    secretAccessKey: 'YOURSECRETKEY',
    signatureVersion: 'v2'
});

Here’s a quick example for generating a pre-signed putObject URL with a v2 signature:

const AWS = require('aws-sdk')

const spacesEndpoint = new AWS.Endpoint('nyc3.digitaloceanspaces.com');
const s3 = new AWS.S3({
    endpoint: spacesEndpoint,
    accessKeyId: 'YOURACCESSKEY',
    secretAccessKey: 'YOURSECRETKEY',
    signatureVersion: 'v2'
});

var space = 'my-space-name'
var key = 'my-file-name'
var expireSeconds = 60 

s3.getSignedUrl('putObject', {
    Bucket: space,
    Expires: expireSeconds,
    Key: key
}, function (err, url) {
    console.log(url);
});