/**
 * Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * This file is licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License. A copy of
 * the License is located at
 *
 * http://aws.amazon.com/apache2.0/
 *
 * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
*/

//snippet-sourcedescription:[ddb_scan.js demonstrates how to return items and attributes from an Amazon DynamoDB table.]
//snippet-service:[dynamodb]
//snippet-keyword:[JavaScript]
//snippet-sourcesyntax:[javascript]
//snippet-keyword:[Code Sample]
//snippet-keyword:[Amazon DynamoDB]
//snippet-sourcetype:[full-example]
//snippet-sourcedate:[2018-06-02]
//snippet-sourceauthor:[AWS-JSDG]

// ABOUT THIS NODE.JS SAMPLE: This sample is part of the SDK for JavaScript Developer Guide topic at
// https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-query-scan.html

// snippet-start:[dynamodb.JavaScript.table.scan]
    // Load the AWS SDK for Node.js.
var AWS = require("aws-sdk");
// Set the AWS Region.
AWS.config.update({ region: "REGION" });

// Create DynamoDB service object.
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

const params = {
  // Specify which items in the results are returned.
  FilterExpression: "Subtitle = :topic AND Season = :s AND Episode = :e",
  // Define the expression attribute value, which are substitutes for the values you want to compare.
  ExpressionAttributeValues: {
    ":topic": {S: "SubTitle2"},
    ":s": {N: 1},
    ":e": {N: 2},
  },
  // Set the projection expression, which are the attributes that you want.
  ProjectionExpression: "Season, Episode, Title, Subtitle",
  TableName: "EPISODES_TABLE",
};

ddb.scan(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
    data.Items.forEach(function (element, index, array) {
      console.log(
          "printing",
          element.Title.S + " (" + element.Subtitle.S + ")"
      );
    });
  }
});

// snippet-end:[dynamodb.JavaScript.table.scan]