Amazon.DynamoDBv2.AmazonDynamoDBClient.GetItemAsync C# (CSharp) Метод

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GetItemAsync() публичный Метод

The GetItem operation returns a set of attributes for the item with the given primary key. If there is no matching item, GetItem does not return any data.

GetItem provides an eventually consistent read by default. If your application requires a strongly consistent read, set ConsistentRead to true. Although a strongly consistent read might take more time than an eventually consistent read, it always returns the last updated value.

/// An error occurred on the server side. /// /// Your request rate is too high. The AWS SDKs for DynamoDB automatically retry requests /// that receive this exception. Your request is eventually successful, unless your retry /// queue is too large to finish. Reduce the frequency of requests and use exponential /// backoff. For more information, go to Error /// Retries and Exponential Backoff in the Amazon DynamoDB Developer Guide. /// /// The operation tried to access a nonexistent table or index. The resource might not /// be specified correctly, or its status might not be ACTIVE. ///

public GetItemAsync ( string tableName, AttributeValue>.Dictionary key, System cancellationToken = default(CancellationToken) ) : Task
tableName	string	The name of the table containing the requested item.
key	AttributeValue>.Dictionary	A map of attribute names to AttributeValue objects, representing the primary key of the item to retrieve. For the primary key, you must provide all of the attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.
cancellationToken	System	/// A cancellation token that can be used by other objects or threads to receive notice of cancellation. ///
Результат	Task

        public Task<GetItemResponse> GetItemAsync(string tableName, Dictionary<string, AttributeValue> key, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var request = new GetItemRequest();
            request.TableName = tableName;
            request.Key = key;
            return GetItemAsync(request, cancellationToken);
        }

Same methods

AmazonDynamoDBClient::GetItemAsync ( GetItemRequest request, System cancellationToken = default(CancellationToken) ) : Task
AmazonDynamoDBClient::GetItemAsync ( string tableName, AttributeValue>.Dictionary key, bool consistentRead, System cancellationToken = default(CancellationToken) ) : Task