simple js app access ddb and states API

index.mjs

import { DynamoDBClient} from '@aws-sdk/client-dynamodb';
import { GetCommand } from '@aws-sdk/lib-dynamodb';
import { marshall, unmarshall } from '@aws-sdk/util-dynamodb';
import { SFNClient, ListExecutionsCommand } from '@aws-sdk/client-sfn';


const logRequestMiddleware = (next, _context) => async (args) => {
    console.log('Request:', args.request);
    return next(args);
  };
  
const sfnClient = new SFNClient();
sfnClient.middlewareStack.add(logRequestMiddleware, { step: 'finalizeRequest' });

const client = new DynamoDBClient();
client.middlewareStack.add(logRequestMiddleware, { step: 'finalizeRequest' });

const tableName = 'tableName';
const stateMachineArn = 'stateArn';

export const handler = async (event) => {
    try {
        const res = await sfnClient.send(new ListExecutionsCommand({
            stateMachineArn,
            statusFilter: 'RUNNING',
          }));

        console.log(res);

        return await getItem(event);
    } catch (err) {
        console.error(err);
        return {
            statusCode: 500,
            body: 'Internal Server Error'
        };
    }
};

const getItem = async (event) => {
    const params = {
        TableName: tableName,
        Key: marshall({ s3_uri: event.id })
    };

    const getCommand = new GetCommand(params);
    const { Item } = await client.send(getCommand);

    return {
        statusCode: 200,
        body: JSON.stringify(unmarshall(Item))
    };
};

// handler({ id: '1' });