The [Amazon SDK for JavaScript V3 API Reference Guide](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/) describes in detail all the API operations for the Amazon SDK for JavaScript version 3 (V3). 

# Register certificate bundles in Node.js
<a name="node-registering-certs"></a>

The default trust stores for Node.js include the certificates needed to access Amazon services. In some cases, it might be preferable to include only a specific set of certificates.

In this example, a specific certificate on disk is used to create an ` https.Agent` that rejects connections unless the designated certificate is provided. The newly created `https.Agent` is then used by the DynamoDB client.

```
import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
import { NodeHttpHandler } from "@smithy/node-http-handler";
import { Agent } from "https";
import { readFileSync } from "fs";
const certs = [readFileSync("/path/to/cert.pem")];
const agent = new Agent({
  rejectUnauthorized: true,
  ca: certs
});
const dynamodbClient = new DynamoDBClient({
  requestHandler: new NodeHttpHandler({
    httpAgent: agent,
    httpsAgent: agent
  })
});
```