orderup-get.mjs

import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
import { DynamoDBDocumentClient, ScanCommand, GetCommand } from "@aws-sdk/lib-dynamodb";

const client = new DynamoDBClient({});
const dynamo = DynamoDBDocumentClient.from(client);
const tableName = 'OrderUpDB';

export const handler = async (event) => {
  try {
    let result;

    if (event.pathParameters && event.pathParameters.id) {
      const { id } = event.pathParameters;
      result = await dynamo.send(
        new GetCommand({
          TableName: tableName,
          Key: { id },
        })
      );
      result = result.Item || {};
    } else {
      result = await dynamo.send(
        new ScanCommand({ TableName: tableName })
      );
      result = result.Items || [];
    }

    return {
      statusCode: 200,
      body: JSON.stringify(result),
    };
  } catch (error) {
    return {
      statusCode: 400,
      body: JSON.stringify({ error: error.message }),
    };
  }
};