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05_ReadingItem.cs

/** * 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. */ using System; using System.Threading.Tasks; using Amazon.DynamoDBv2.DocumentModel; namespace DynamoDB_intro { public static partial class Ddb_Intro { /*-------------------------------------------------------------------------- * ReadingMovie_async *--------------------------------------------------------------------------*/ public static async Task<bool> ReadingMovie_async( int year, string title, bool report ) { // Create Primitives for the HASH and RANGE portions of the primary key Primitive hash = new Primitive(year.ToString(), true); Primitive range = new Primitive(title, false); operationSucceeded = false; operationFailed = false; try { Task<Document> readMovie = moviesTable.GetItemAsync(hash, range, token); if( report ) Console.WriteLine( " -- Reading the {0} movie \"{1}\" from the Movies table...", year, title ); movie_record = await readMovie; if( movie_record == null ) { if( report ) Console.WriteLine( " -- Sorry, that movie isn't in the Movies table." ); return ( false ); } else { if( report ) Console.WriteLine( " -- Found it! The movie record looks like this:\n" + movie_record.ToJsonPretty( ) ); operationSucceeded = true; return ( true ); } } catch( Exception ex ) { Console.WriteLine( " FAILED to get the movie, because: {0}.", ex.Message ); operationFailed = true; } return ( false ); } }

Sample Details

Service: dynamodb

Last tested:

Author: AWS

Type: full-example

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