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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 and there will be no
Item element in the response.
GetItem provides an eventually consistent read by default. If your application
requires a strongly consistent read, set
Although a strongly consistent read might take more time than an eventually consistent
read, it always returns the last updated value.
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginGetItem and EndGetItem. For Unity the operation does not take CancellationToken as a parameter, and instead takes AmazonServiceCallback<GetItemRequest, GetItemResponse> and AsyncOptions as additional parameters.
public abstract Task<GetItemResponse> GetItemAsync( String tableName, Dictionary<String, AttributeValue> key, CancellationToken cancellationToken )
The name of the table containing the requested item.
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.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
|InternalServerErrorException||An error occurred on the server side.|
|ProvisionedThroughputExceededException||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.|
|ResourceNotFoundException||The operation tried to access a nonexistent table or index. The resource might not be specified correctly, or its status might not be ACTIVE.|
Supported in: 1.3
Supported in: 4.5
Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms
Supported Versions: 4.6 and above
Supported Platforms: Android, iOS, Standalone