Support of DynamoDB for Node.js - JavaScript

CAST supports DynamoDB via its com.castsoftware.nodejs extension. Details about how this support is provided for Node.js JavaScript source code is discussed below.

Objects

Icon	Description
	Node.js DynamoDB Endpoint
	Node.jsDynamoDB Table

Links

DynamoDB API

Link Type	Function api v2	Commands from SDK V3 imported from ‘@aws-sdk/client-dynamodb’
No Link	createGlobalTable createTable	-
useSelectLink	createBackup getItem batchGetItem transactWriteItems batchWriteItem restoreTableToPointInTime	CreateTableCommand BatchGetItemCommand GetItemCommand
useDeleteLink	deleteTable deleteItem transactWriteItems batchWriteItem	DeleteTableCommand DeleteItemCommand
useUpdateLink	transactWriteItems batchWriteItem updateItem updateTable putItem restoreTableToPointInTime restoreTableFromBackup	PutItemCommand UpdateItemCommand UpdateCommand

DocumentClient

Link Type	Function api v2	Commands from SDK V3 imported from ‘@aws-sdk/client-dynamodb’
useSelectLink	batchGet transactGet get scan query batchWrite transactWrite	-
useDeleteLink	batchWrite transactWrite delete	-
useUpdateLink	put update batchWrite transactWrite	-

Code samples

API v2 sample

These declaration will establish a connection to the database located on localhost:

var AWS = require("aws-sdk");

AWS.config.update({
  region: "us-west-2",
  endpoint: "http://localhost:8000"
});

var dynamodb = new AWS.DynamoDB();

These declarations will create a useUpdateLink from code to the database “myDatabase”:

/* This example adds a new item to the Music table. */

var params = {
  Item: {
    "AlbumTitle": {
      S: "Somewhat Famous"
    }, 
    "Artist": {
      S: "No One You Know"
    }, 
    "SongTitle": {
      S: "Call Me Today"
    }
  }, 
  ReturnConsumedCapacity: "TOTAL", 
  TableName: "Music"
};
dynamodb.putItem(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});