ElectroDB Transactions across tables

transactions.ts

process.env.AWS_NODEJS_CONNECTION_REUSE_ENABLED = "1";
import { Entity, ElectroEventListener, Service, createWriteTransaction, createGetTransaction } from 'electrodb';
import { DocumentClient } from "aws-sdk/clients/dynamodb";

const table = "electro";

const configuration = {
    endpoint: "http://localhost:8000",
    region: "us-east-1",
};

const client = new DocumentClient(configuration);

const Thing = new Entity({
    model: {
        entity: "thing",
        service: "things",
        version: "1",
    },
    attributes: {
        thingId: {
            type: "string",
        },
        ownerId: {
          type: "string",
        },
        name: {
            type: "string",
        },
    },
    indexes: {
        things: {
            pk: {
                field: "pk",
                composite: ["ownerId"],
            },
            sk: {
                field: "sk",
                composite: ["thingId"],
            }
        }
    }
}, { table, client });

const ThingService = new Service({ Thing }, );

function main() {
  // with functions 
  const params1 = createGetTransaction({ Thing }, ({ Thing }) => [
    Thing.get({ thingId: '001', ownerId: '555' }).commit({ table: 'override-table-one' }),
    Thing.get({ thingId: '001', ownerId: '666' }).commit({ table: 'override-table-two' }),
  ]).params();
  
  console.log('with createGetTransaction:', JSON.stringify(params1, null, 4));

  const params2 = createWriteTransaction({ Thing }, ({ Thing }) => [
    Thing.create({ thingId: '001', ownerId: '555', name: 'object' }).commit({ table: 'override-table-one' }),
    Thing.create({ thingId: '001', ownerId: '666', name: 'object' }).commit({ table: 'override-table-two' }),
  ]).params();
  
  console.log('with createWriteTransaction:', JSON.stringify(params2, null, 4));

  const params3 = ThingService.transaction.write(({ Thing }) => [
    Thing.create({ thingId: '001', ownerId: '555', name: 'object' }).commit({ table: 'override-table-one' }),
    Thing.create({ thingId: '001', ownerId: '666', name: 'object' }).commit({ table: 'override-table-two' }),
  ]).params({});
  
  console.log('with ThingService.transaction.write:', JSON.stringify(params3, null, 4));

  const params4 = ThingService.transaction.get(({ Thing }) => [
    Thing.get({ thingId: '001', ownerId: '555' }).commit({ table: 'override-table-one' }),
    Thing.get({ thingId: '001', ownerId: '666' }).commit({ table: 'override-table-two' }),
  ]).params();
  
  console.log('with ThingService.transaction.get:', JSON.stringify(params3, null, 4));
}