Configuring region in Node.js AWS SDK

Question

Can someone explain how to fix a missing config error with Node.js? I've followed all the examples from the aws doc page but I still get this error no matter what.

{ [ConfigError: Missing region in config]
message: 'Missing region in config',
code: 'ConfigError',
time: Wed Jun 24 2015 21:39:58 GMT-0400 (EDT) }>{ thumbnail: 
 { fieldname: 'thumbnail',
 originalname: 'testDoc.pdf',
 name: 'testDoc.pdf',
 encoding: '7bit',
 mimetype: 'application/pdf',
path: 'uploads/testDoc.pdf',
 extension: 'pdf',
 size: 24,
 truncated: false,
 buffer: null } }
 POST / 200 81.530 ms - -

Here is my code:

var express = require('express');
var router = express.Router();
var AWS = require('aws-sdk');
var dd = new AWS.DynamoDB();
var s3 = new AWS.S3();
var bucketName = 'my-bucket';

AWS.config.update({region:'us-east-1'});

(...)

Answer 1

How about changing the order of statements? Update AWS config before instantiating s3 and dd

var AWS = require('aws-sdk');
AWS.config.update({region:'us-east-1'});

var dd = new AWS.DynamoDB();
var s3 = new AWS.S3();