@aws-sdk/util-dynamodb


This package provides utilities to be used with @aws-sdk/client-dynamodb

If you are looking for DynamoDB Document client, please check
@aws-sdk/lib-dynamodb
which automatically performs the necessary marshalling and unmarshalling.

Convert JavaScript object into DynamoDB Record

``js
const { DynamoDB } = require("@aws-sdk/client-dynamodb");
const { marshall } = require("@aws-sdk/util-dynamodb");

const client = new DynamoDB(clientParams);
const params = {
TableName: "Table",
Item: marshall({
HashKey: "hashKey",
NumAttribute: 1,
BoolAttribute: true,
ListAttribute: [1, "two", false],
MapAttribute: { foo: "bar" },
NullAttribute: null,
}),
};

await client.putItem(params);
`

Convert DynamoDB Record into JavaScript object

`js
const { DynamoDB } = require("@aws-sdk/client-dynamodb");
const { marshall, unmarshall } = require("@aws-sdk/util-dynamodb");

const client = new DynamoDB(clientParams);
const params = {
TableName: "Table",
Key: marshall({
HashKey: "hashKey",
}),
};

const { Item } = await client.getItem(params);
unmarshall(Item);
``