import uuid from 'node-uuid'; import policy from 's3-policy'; function getExtension(filename) { const i = filename.lastIndexOf('.'); return (i < 0) ? '' : filename.substr(i); } export function signS3(req, res) { const fileExtension = getExtension(req.body.name); const filename = uuid.v4() + fileExtension; const acl = 'public-read'; const p = policy({ acl, secret: process.env.AWS_SECRET_KEY, length: 5000000, // in bytes? bucket: process.env.S3_BUCKET, key: filename, expires: new Date(Date.now() + 60000), }); const result = { AWSAccessKeyId: process.env.AWS_ACCESS_KEY, key: filename, policy: p.policy, signature: p.signature }; return res.json(result); }