var AWS = require("aws-sdk") function connectAws(bucket, region, identity) { AWS.config.update({ region: region, credentials: new AWS.CognitoIdentityCredentials({ IdentityPoolId: identity }) }); var s3 = new AWS.S3({ apiVersion: '2006-03-01', params: { Bucket: bucket } }); return s3; } module.exports = function() { var s3 = connectAws("a.tum.dk", "eu-west-1", "eu-west-1:5343270a-03fd-4856-ad07-25f1e2c78246"); return s3; }