Deleting multiple records in dynamo db

You would have to do a BatchWriteItem to delete your items. From the documentation:

BatchWriteItem performs put and delete

Please Check This query it's working with multiple data

const params = {TableName: "test"};

docClient.scan(params, (error, result) => {
        if (error) { console.log(error,"error scan"); }

        result.Items.forEach(function(item) {          
            docClient.delete({Key:{mainID: item.id},TableName:"test"}, (error) => {
                if (error) {
                    console.log("Delete fail");
                }
                console.log("Delete  Success");
            });
        });

});    

Based on the API, there is no Batch Delete for DynamoDB.

http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html

You need to query the item and delete with their partition key.

I would recommend looking at ODM,

https://github.com/clarkie/dynogels

to make the operations simpler.

Check out the sample calls for deletion,

Account.destroy('foo@example.com', function (err) {
  console.log('account deleted');
});

// Destroy model using hash and range key
BlogPost.destroy('foo@example.com', 'Hello World!', function (err) {
  console.log('post deleted')
});

BlogPost.destroy({email: 'foo@example.com', title: 'Another Post'}, function (err) {
  console.log('another post deleted')
});

@Kannaiyan thanks for your comments....

i found the solution with dynamoDB with java http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/JavaDocumentAPICRUDExample.html

DeleteItemSpec deleteItemSpec = new DeleteItemSpec().withPrimaryKey("Id", 120)
                .withConditionExpression("#ip = :val").withNameMap(new NameMap().with("#ip", "InPublication"))
                .**withValueMap(new ValueMap()**.withBoolean(":val", false)).withReturnValues(ReturnValue.ALL_OLD);

fetching the records with key, value pair and storing it in "withValueMap(new ValueMap()" and this helps me.

Thanks.