Cannot use SDK v3 with dynamodb local - nodejs v18

[Berger92]

Checkboxes for prior research

• I've gone through Developer Guide and API reference
• I've checked AWS Forums and StackOverflow.
• I've searched for previous similar issues and didn't find any solution.

Describe the bug

Hi 👋

I've seen this issue in the past, but they have all been closed. I am migrating from my app using SDK v2 to SDK v3.

I'm also updating nodejs version to 18, but it doesn't seem to work.

I've tried tinkering with config, adding fake credentials, etc. but I got nowhere.

If I use nodejs 16, it does work.

SDK version number

v3.231.0

Which JavaScript Runtime is this issue in?

Node.js

Details of the browser/Node.js/ReactNative version

18.12.1

Reproduction Steps

import { DynamoDBClient } from '@aws-sdk/client-dynamodb';
import { DynamoDBDocument } from '@aws-sdk/lib-dynamodb';

const client = new DynamoDBClient({
  endpoint: 'http://localhost:8000'
});
const ddbDocClient = DynamoDBDocument.from(client);

(async () => {
  const result = await client.send(new ListTablesCommand({}));

  // or const result = await ddbDocClient.send(new ListTablesCommand({}));

  console.log(result);
})();

Observed Behavior

Error: connect ECONNREFUSED ::1:8000
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1300:16) {
  errno: -61,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '::1',
  port: 8000,
  '$metadata': { attempts: 1, totalRetryDelay: 0 }
}

Expected Behavior

The list of local dynamodb tables

Possible Solution

No response

Additional Information/Context

No response

[yenfryherrerafeliz]

Hi @Berger92, thanks for opening this issue. Could you please try specifying the endpoint as follow:

const client = new DynamoDBClient({
    endpoint: {
        hostname: 'localhost',
        port: 8000,
        path: '',
        protocol: 'http:',
    }
});

Your example code should look as follow:

import {DynamoDBClient, ListTablesCommand} from '@aws-sdk/client-dynamodb';
import { DynamoDBDocument } from '@aws-sdk/lib-dynamodb';

const client = new DynamoDBClient({
    endpoint: {
        hostname: 'localhost',
        port: 8000,
        path: '',
        protocol: 'http:',
    }
});
const ddbDocClient = DynamoDBDocument.from(client);

(async () => {
    const result = await ddbDocClient.send(new ListTablesCommand({}));

    console.log(result);
})();

Let me know if that works.

Thanks!

[Berger92]

Hi @yenfryherrerafeliz 👋
Thanks for the quick response. I've tried it, but I got the same result as before

Error: connect ECONNREFUSED ::1:8000
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1300:16) {
  errno: -61,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '::1',
  port: 8000,
  '$metadata': { attempts: 1, totalRetryDelay: 0 }
}

[Berger92]

@yenfryherrerafeliz Just one additional piece of information that might help. I am using DynamoDB Local in a Docker container, latest version.

[yenfryherrerafeliz]

@Berger92, thanks for the information. This also helps with my reproduction, since in my local environment "localhost" is being resolved as 127.0.0.1. I will try with this new information and I will get back to you as soon as possible.

Thanks!

[yenfryherrerafeliz]

Hi @Berger92, sorry for the delay in getting back. After doing some researches I found that the issue that you are getting may be due to a factor out of the SDK itself. According with the error that you are getting, seems like the connection to the specified host and port is being refused, and this could be due to different situations, maybe the specified port is not open to be accessible, out of the container, and actually did you make sure you are running the image with the right port mapping?, because it seems to be a networking issue.

Thanks!