Support of DynamoDB for Node.js - TypeScript
CAST supports DynamoDB via its com.castsoftware.typescript extension. Details about how this support is provided is discussed below.
Supported APIs
Only the SDK V2 is currently supported.
Objects
| Icon | Description |
|---|---|
|
Node.js DynamoDB Endpoint |
|
Node.js DynamoDB Table |
Links
API: DynamoDB (SDK V2 or SDK V3)
//SDKV2
import AWS from "aws-sdk";
const dynamodb = new AWS.DynamoDB();
or
//SDKV3
import * as AWS from "@aws-sdk/client-dynamodb";
const dynamodb = new AWS.DynamoDB();
| Link Type | Function |
|---|---|
| No Link | createGlobalTable createTable |
| useSelectLink | createBackup getItem batchGetItem transactWriteItems batchWriteItem restoreTableToPointInTime |
| useDeleteLink | deleteTable deleteItem transactWriteItems batchWriteItem |
| useUpdateLink | transactWriteItems batchWriteItem updateItem createBackup updateTable putItem restoreTableToPointInTime restoreTableFromBackup |
API: Commands from SDK V3
imported from '@aws-sdk/client-dynamodb'
| Link Type | Function |
|---|---|
| No Link | CreateGlobalTableCommand CreateTableCommand |
| useSelectLink | CreateBackupCommand GetItemCommand BatchGetItemCommand TransactGetItemsCommand BatchGetItemCommand BatchWriteItemCommand TransactWriteItemsCommand RestoreTableToPointInTimeCommand |
| useDeleteLink | DeleteItemCommand DeleteTableCommand TransactWriteItemsCommand BatchWriteItemCommand |
| useUpdateLink | TransactWriteItemsCommand BatchWriteItemCommand UpdateItemCommand CreateBackupCommand UpdateTableCommand PutItemCommand RestoreTableFromBackupCommand |
API: DocumentClient
| Link Type | Function |
|---|---|
| useSelectLink | batchGet transactGet get scan query batchWrite transactWrite |
| useDeleteLink | batchWrite transactWrite delete |
| useUpdateLink | put update batchWrite transactWrite |
What results can you expect?
Code samples
These declarations will establish a connection to the database located on localhost:
import AWS from "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 table “Music”.
/* 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
});