AWS DynamoDB Missing credentials in config in local dev environment

Question

My colleague successfully perform the following code showing the table without setting the credentials in local environment, but when i conduct it it shows such error on my local machine. Please help.

Please find my codes below:

Controller:

    AWS.config.update({
        region: 'localhost',
        endpoint: new AWS.Endpoint('http://localhost:8008'),
    })
    var params = {
        TableName: 'history',
        KeySchema: [{
            AttributeName: 'b_id',
            KeyType: 'HASH'
        },{
            AttributeName: 'e_id',
            KeyType: 'RANGE'
        }],
        AttributeDefinitions: [{
            AttributeName: 'b_id',
            AttributeType: 'S',
        },{
            AttributeName: 'e_id',
            AttributeType: 'N',
        }],
        ProvisionedThroughput: { // required provisioned throughput for the table
            ReadCapacityUnits: 1, 
            WriteCapacityUnits: 1, 
        },
    }
    response.implicitEnd = false
    AWS.query('history',params, function(err, data){
        if(err) console.log(err)
        else  response.json(data)
    })

Error Message:

{ Error: connect EHOSTUNREACH 169.254.169.254:80 - Local () at Object._errnoException (util.js:1022:11) at _exceptionWithHostPort (util.js:1044:20) at internalConnect (net.js:971:16) at net.js:1065:9 at _combinedTickCallback (internal/process/next_tick.js:131:7) at process._tickDomainCallback (internal/process/next_tick.js:218:9) message: 'Missing credentials in config', code: 'CredentialsError', errno: 'EHOSTUNREACH', syscall: 'connect', address: '169.254.169.254', port: 80, time: 2018-04-30T04:34:53.218Z, originalError: { message: 'Could not load credentials from any providers', code: 'CredentialsError', errno: 'EHOSTUNREACH', syscall: 'connect', address: '169.254.169.254', port: 80, time: 2018-04-30T04:34:53.218Z, originalError: { code: 'EHOSTUNREACH', errno: 'EHOSTUNREACH', syscall: 'connect', address: '169.254.169.254', port: 80, message: 'connect EHOSTUNREACH 169.254.169.254:80 - Local ()' } } }

> which python 
/usr/bin/python

> pip install --upgrade pip
Requirement already up-to-date: pip in /Library/Python/2.7/site-packages (10.0.1)
metplotlib 1.3.1 requires nose, which is not installed.
matplotlib 1.3.1 requires tornado, which is not installed.

> pip --version
pip 10.0.1 from /Library/Python/2.7/site-packages/pip (python 2.7)

> echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

> python --version
Python 2.7.10

Answer 1

This is what's working for me

AWS.config.update({
  region: 'us-east-1',
  accessKeyId: 'xxxx',
  secretAccessKey: 'xxxx',
  endpoint: 'http://localhost:8000'
});

const dynamodb = new AWS.DynamoDB()
const dynamoDbClient = new AWS.DynamoDB.DocumentClient();

The accessKeyId and secretAccessKey does not need to be real values.