what's difference between DynamoDb and DocumentClient API

 

DocumentClient provides a simple way to work with items in DynamoDB

For example, 

If you use DocumentCline to create a new item, you won't have to specify

DynamoDb API	DocumentClient API
var params = {     TableName: "Sample ",     Item: {     "Id": { S: "john@amazon.com" }     } }; dynamodb.putItem(params, function (rst, err) { console.log(rst); console.log(err) });	var params = {     TableName: 'Sample ',     Item: {      "Id": "john@amazon .com"     } }; docClient.put(params, function (rst, err) { console.log(rst); console.log(err) });