list.js

import * as dynamoDbLib from "./libs/dynamodb-lib";
import { success, failure } from "./libs/response-lib";

const TABLE_NAME = process.env.DATABASE_NAME

export async function main(event, context) {
  console.log("List",event)
  let params
  if (event.queryStringParameters && event.queryStringParameters.domain) {
    params = {
        TableName:TABLE_NAME,
        KeyConditionExpression: "userId = :userId AND begins_with(settingName,:domain)",
        ExpressionAttributeValues: {
          ":userId": event.requestContext.authorizer.principalId,
          ":domain": event.queryStringParameters.domain
        }
    }
  } else {
    params = {
        TableName:TABLE_NAME,
        KeyConditionExpression: "userId = :userId",
        ExpressionAttributeValues: {
          ":userId": event.requestContext.authorizer.principalId
        }
    }
  }

  try {
    const result = await dynamoDbLib.call("query", params);
    // Return the matching list of items in response body
    return success(result.Items.reduce(function(acc,cur,i) {
      acc[cur.settingName] = cur.content
      return acc
    },{}))
  } catch (e) {
    console.log(e)
    return failure({ status: false });
  }
}