public void CreateIfNotExist()
{
var request = new DescribeTableRequest { TableName = _config.TableName };
try
{
_client.DescribeTable(request);
}
catch (ResourceNotFoundException)
{
CreateTable();
}
}
private void AssertDynamoDbExists(string tableName)
{
var request = new DescribeTableRequest { TableName = tableName };
try
{
var response = _client.DescribeTable(request);
}
catch (ResourceNotFoundException)
{
Assert.Fail("Table {0} doesn't exist!", _tableName);
}
}
public object Execute(ExecutorContext context)
{
var cmdletContext = context as CmdletContext;
// create request
var request = new Amazon.DynamoDBv2.Model.DescribeTableRequest();
if (cmdletContext.TableName != null)
{
request.TableName = cmdletContext.TableName;
}
CmdletOutput output;
// issue call
var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
try
{
var response = CallAWSServiceOperation(client, request);
object pipelineOutput = null;
pipelineOutput = cmdletContext.Select(response, this);
output = new CmdletOutput
{
PipelineOutput = pipelineOutput,
ServiceResponse = response
};
}
catch (Exception e)
{
output = new CmdletOutput {
ErrorResponse = e
};
}
return(output);
}
/// <summary>
/// Returns information about the table, including the current status of the table, when
/// it was created, the primary key schema, and any indexes on the table.
///
/// <note>
/// <para>
/// If you issue a DescribeTable request immediately after a CreateTable request, DynamoDB
/// might return a ResourceNotFoundException. This is because DescribeTable uses an eventually
/// consistent query, and the metadata for your table might not be available at that moment.
/// Wait for a few seconds, and then try the DescribeTable request again.
/// </para>
/// </note>
/// </summary>
/// <param name="tableName"> The name of the table to describe.</param>
///
/// <returns>The response from the DescribeTable service method, as returned by DynamoDB.</returns>
/// <exception cref="Amazon.DynamoDBv2.Model.InternalServerErrorException">
/// An error occurred on the server side.
/// </exception>
/// <exception cref="Amazon.DynamoDBv2.Model.ResourceNotFoundException">
/// The operation tried to access a nonexistent table or index. The resource might not
/// be specified correctly, or its status might not be <code>ACTIVE</code>.
/// </exception>
public DescribeTableResponse DescribeTable(string tableName)
{
var request = new DescribeTableRequest();
request.TableName = tableName;
return DescribeTable(request);
}
/// <summary>
/// <para>Returns information about the table, including the current status of the table, when it was created, the primary key schema, and any
/// indexes on the table.</para>
/// </summary>
///
/// <param name="describeTableRequest">Container for the necessary parameters to execute the DescribeTable service method on
/// AmazonDynamoDBv2.</param>
///
/// <returns>The response from the DescribeTable service method, as returned by AmazonDynamoDBv2.</returns>
///
/// <exception cref="T:Amazon.DynamoDBv2.Model.ResourceNotFoundException" />
/// <exception cref="T:Amazon.DynamoDBv2.Model.InternalServerErrorException" />
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
public Task<DescribeTableResponse> DescribeTableAsync(DescribeTableRequest describeTableRequest, CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.GetInstance();
return Invoke<IRequest, DescribeTableRequest, DescribeTableResponse>(describeTableRequest, marshaller, unmarshaller, signer, cancellationToken);
}
internal DescribeTableResponse DescribeTable(DescribeTableRequest request)
{
var task = DescribeTableAsync(request);
try
{
return task.Result;
}
catch(AggregateException e)
{
ExceptionDispatchInfo.Capture(e.InnerException).Throw();
return null;
}
}
private TableDescription DescribeTable(string tableName)
{
DescribeTableRequest req = new DescribeTableRequest
{
TableName = TableName
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)req).AddBeforeRequestHandler(new RequestEventHandler(this.UserAgentRequestEventHandlerSync));
var info = this.DDBClient.DescribeTable(req);
if (info.Table == null)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "Table name {0} does not exist", TableName));
}
return info.Table;
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeTable operation.
/// <seealso cref="Amazon.DynamoDBv2.IAmazonDynamoDB"/>
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeTable operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
public Task<DescribeTableResponse> DescribeTableAsync(DescribeTableRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.Instance;
return InvokeAsync<DescribeTableRequest,DescribeTableResponse>(request, marshaller,
unmarshaller, cancellationToken);
}
/// <summary>
/// <para>Returns information about the table, including the current status of the table, when it was created, the primary key schema, and any
/// indexes on the table.</para>
/// </summary>
///
/// <param name="describeTableRequest">Container for the necessary parameters to execute the DescribeTable service method on
/// AmazonDynamoDBv2.</param>
///
/// <returns>The response from the DescribeTable service method, as returned by AmazonDynamoDBv2.</returns>
///
/// <exception cref="ResourceNotFoundException"/>
/// <exception cref="InternalServerErrorException"/>
public DescribeTableResponse DescribeTable(DescribeTableRequest describeTableRequest)
{
IAsyncResult asyncResult = invokeDescribeTable(describeTableRequest, null, null, true);
return EndDescribeTable(asyncResult);
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeTable operation.
/// <seealso cref="Amazon.DynamoDBv2.IAmazonDynamoDB.DescribeTable"/>
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeTable operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
public async Task<DescribeTableResponse> DescribeTableAsync(DescribeTableRequest request, CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.GetInstance();
var response = await Invoke<IRequest, DescribeTableRequest, DescribeTableResponse>(request, marshaller, unmarshaller, signer, cancellationToken)
.ConfigureAwait(continueOnCapturedContext: false);
return response;
}
public void DataPlaneSamples()
{
{
#region CreateTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Define table schema:
// Table has a hash-key "Author" and a range-key "Title"
List<KeySchemaElement> schema = new List<KeySchemaElement>
{
new KeySchemaElement
{
AttributeName = "Author", KeyType = "HASH"
},
new KeySchemaElement
{
AttributeName = "Title", KeyType = "RANGE"
}
};
// Define key attributes:
// The key attributes "Author" and "Title" are string types
List<AttributeDefinition> definitions = new List<AttributeDefinition>
{
new AttributeDefinition
{
AttributeName = "Author", AttributeType = "S"
},
new AttributeDefinition
{
AttributeName = "Title", AttributeType = "S"
}
};
// Define table throughput:
// Table has capacity of 20 reads and 50 writes
ProvisionedThroughput throughput = new ProvisionedThroughput
{
ReadCapacityUnits = 20,
WriteCapacityUnits = 50
};
// Configure the CreateTable request
CreateTableRequest request = new CreateTableRequest
{
TableName = "SampleTable",
KeySchema = schema,
ProvisionedThroughput = throughput,
AttributeDefinitions = definitions
};
// View new table properties
TableDescription tableDescription = client.CreateTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Creation time: {0}", tableDescription.CreationDateTime);
Console.WriteLine("Item count: {0}", tableDescription.ItemCount);
Console.WriteLine("Table size (bytes): {0}", tableDescription.TableSizeBytes);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
// List table key schema
List<KeySchemaElement> tableSchema = tableDescription.KeySchema;
for (int i = 0; i < tableSchema.Count; i++)
{
KeySchemaElement element = tableSchema[i];
Console.WriteLine("Key: Name = {0}, KeyType = {1}",
element.AttributeName, element.KeyType);
}
// List attribute definitions
List<AttributeDefinition> attributeDefinitions = tableDescription.AttributeDefinitions;
for (int i = 0; i < attributeDefinitions.Count; i++)
{
AttributeDefinition definition = attributeDefinitions[i];
Console.WriteLine("Attribute: Name = {0}, Type = {1}",
definition.AttributeName, definition.AttributeType);
}
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
{
#region DescribeTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Create DescribeTable request
DescribeTableRequest request = new DescribeTableRequest
{
TableName = "SampleTable"
};
// Issue DescribeTable request and retrieve the table description
TableDescription tableDescription = client.DescribeTable(request).Table;
// View new table properties
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Creation time: {0}", tableDescription.CreationDateTime);
Console.WriteLine("Item count: {0}", tableDescription.ItemCount);
Console.WriteLine("Table size (bytes): {0}", tableDescription.TableSizeBytes);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
// List table key schema
List<KeySchemaElement> tableSchema = tableDescription.KeySchema;
for (int i = 0; i < tableSchema.Count; i++)
{
KeySchemaElement element = tableSchema[i];
Console.WriteLine("Key: Name = {0}, KeyType = {1}",
element.AttributeName, element.KeyType);
}
// List attribute definitions
List<AttributeDefinition> attributeDefinitions = tableDescription.AttributeDefinitions;
for (int i = 0; i < attributeDefinitions.Count; i++)
{
AttributeDefinition definition = attributeDefinitions[i];
Console.WriteLine("Attribute: Name = {0}, Type = {1}",
definition.AttributeName, definition.AttributeType);
}
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
{
#region ListTables Paging Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
string startTableName = null;
do
{
// Configure ListTables request with the marker value
ListTablesRequest request = new ListTablesRequest
{
ExclusiveStartTableName = startTableName,
};
// Issue call
ListTablesResult result = client.ListTables(request);
// List retrieved tables
List<string> tables = result.TableNames;
Console.WriteLine("Retrieved tables: {0}",
string.Join(", ", tables));
// Update marker value from the result
startTableName = result.LastEvaluatedTableName;
} while (!string.IsNullOrEmpty(startTableName)); // Test marker value
#endregion
}
{
#region ListTables NonPaging Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Issue call
ListTablesResult result = client.ListTables();
// List retrieved tables
List<string> tables = result.TableNames;
Console.WriteLine("Retrieved tables: {0}",
string.Join(", ", tables));
#endregion
}
TableUtils.WaitUntilTableActive("SampleTable", TestClient);
{
#region UpdateTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Define new table throughput:
// Table will now have capacity of 40 reads and 50 writes
ProvisionedThroughput throughput = new ProvisionedThroughput
{
ReadCapacityUnits = 40,
WriteCapacityUnits = 50
};
// Compose the UpdateTable request
UpdateTableRequest request = new UpdateTableRequest
{
TableName = "SampleTable",
ProvisionedThroughput = throughput
};
// View new table properties
TableDescription tableDescription = client.UpdateTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
TableUtils.WaitUntilTableActive("SampleTable", TestClient);
{
#region DeleteTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Configure the DeleteTable request
DeleteTableRequest request = new DeleteTableRequest
{
TableName = "SampleTable"
};
// Issue DeleteTable request and retrieve the table description
TableDescription tableDescription = client.DeleteTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
#endregion
}
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeTable operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeTable operation on AmazonDynamoDBClient.</param>
/// <param name="callback">An Action delegate that is invoked when the operation completes.</param>
/// <param name="options">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
public void DescribeTableAsync(DescribeTableRequest request, AmazonServiceCallback<DescribeTableRequest, DescribeTableResponse> callback, AsyncOptions options = null)
{
options = options == null?new AsyncOptions():options;
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.Instance;
Action<AmazonWebServiceRequest, AmazonWebServiceResponse, Exception, AsyncOptions> callbackHelper = null;
if(callback !=null )
callbackHelper = (AmazonWebServiceRequest req, AmazonWebServiceResponse res, Exception ex, AsyncOptions ao) => {
AmazonServiceResult<DescribeTableRequest,DescribeTableResponse> responseObject
= new AmazonServiceResult<DescribeTableRequest,DescribeTableResponse>((DescribeTableRequest)req, (DescribeTableResponse)res, ex , ao.State);
callback(responseObject);
};
BeginInvoke<DescribeTableRequest>(request, marshaller, unmarshaller, options, callbackHelper);
}
/// <summary>
/// Returns information about the table, including the current status of the table, when
/// it was created, the primary key schema, and any indexes on the table.
///
/// <note>
/// <para>
/// If you issue a DescribeTable request immediately after a CreateTable request, DynamoDB
/// might return a ResourceNotFoundException. This is because DescribeTable uses an eventually
/// consistent query, and the metadata for your table might not be available at that moment.
/// Wait for a few seconds, and then try the DescribeTable request again.
/// </para>
/// </note>
/// </summary>
/// <param name="tableName"> The name of the table to describe.</param>
///
/// <returns>The response from the DescribeTable service method, as returned by DynamoDB.</returns>
/// <exception cref="Amazon.DynamoDBv2.Model.InternalServerErrorException">
/// An error occurred on the server side.
/// </exception>
/// <exception cref="Amazon.DynamoDBv2.Model.ResourceNotFoundException">
/// The operation tried to access a nonexistent table or index. The resource might not
/// be specified correctly, or its status might not be <code>ACTIVE</code>.
/// </exception>
public void DescribeTableAsync(string tableName, AmazonServiceCallback<DescribeTableRequest, DescribeTableResponse> callback, AsyncOptions options = null)
{
var request = new DescribeTableRequest();
request.TableName = tableName;
DescribeTableAsync(request, callback, options);
}
private Amazon.DynamoDBv2.Model.DescribeTableResponse CallAWSServiceOperation(IAmazonDynamoDB client, Amazon.DynamoDBv2.Model.DescribeTableRequest request)
{
Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon DynamoDB", "DescribeTable");
try
{
#if DESKTOP
return(client.DescribeTable(request));
#elif CORECLR
return(client.DescribeTableAsync(request).GetAwaiter().GetResult());
#else
#error "Unknown build edition"
#endif
}
catch (AmazonServiceException exc)
{
var webException = exc.InnerException as System.Net.WebException;
if (webException != null)
{
throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
}
throw;
}
}
IAsyncResult invokeDescribeTable(DescribeTableRequest describeTableRequest, AsyncCallback callback, object state, bool synchronized)
{
IRequest irequest = new DescribeTableRequestMarshaller().Marshall(describeTableRequest);
var unmarshaller = DescribeTableResponseUnmarshaller.GetInstance();
AsyncResult result = new AsyncResult(irequest, callback, state, synchronized, signer, unmarshaller);
Invoke(result);
return result;
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeTable operation.
/// <seealso cref="Amazon.DynamoDBv2.AmazonDynamoDB.DescribeTable"/>
/// </summary>
///
/// <param name="describeTableRequest">Container for the necessary parameters to execute the DescribeTable operation on
/// AmazonDynamoDBv2.</param>
/// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndDescribeTable
/// operation.</returns>
public IAsyncResult BeginDescribeTable(DescribeTableRequest describeTableRequest, AsyncCallback callback, object state)
{
return invokeDescribeTable(describeTableRequest, callback, state, false);
}
internal DescribeTableResponse DescribeTable(DescribeTableRequest request)
{
var task = DescribeTableAsync(request);
try
{
return task.Result;
}
catch(AggregateException e)
{
throw e.InnerException;
}
}
internal DescribeTableResponse DescribeTable(DescribeTableRequest request)
{
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.Instance;
return Invoke<DescribeTableRequest,DescribeTableResponse>(request, marshaller, unmarshaller);
}
private void GetTableInfo()
{
DescribeTableRequest req = new DescribeTableRequest
{
TableName = TableName
};
req.BeforeRequestEvent += new RequestEventHandler(this.UserAgentRequestEventHandlerSync);
DescribeTableResult info = this.DDBClient.DescribeTable(req);
if (info.Table == null)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "Table name {0} does not exist", TableName));
}
Keys.Clear();
HashKeys.Clear();
RangeKeys.Clear();
TableDescription table = info.Table;
foreach (var key in table.KeySchema)
{
string keyName = key.AttributeName;
AttributeDefinition attributeDefinition = table.AttributeDefinitions
.FirstOrDefault(a => string.Equals(a.AttributeName, keyName, StringComparison.Ordinal));
if (attributeDefinition == null) throw new InvalidOperationException("No attribute definition found for key " + key.AttributeName);
KeyDescription keyDescription = new KeyDescription
{
IsHash = string.Equals(key.KeyType, "HASH", StringComparison.OrdinalIgnoreCase),
Type = GetType(attributeDefinition.AttributeType)
};
if (keyDescription.IsHash)
HashKeys.Add(keyName);
else
RangeKeys.Add(keyName);
Keys[keyName] = keyDescription;
}
LocalSecondaryIndexes.Clear();
LocalSecondaryIndexNames.Clear();
if (table.LocalSecondaryIndexes != null)
{
foreach (var index in table.LocalSecondaryIndexes)
{
LocalSecondaryIndexes[index.IndexName] = index;
LocalSecondaryIndexNames.Add(index.IndexName);
}
}
GlobalSecondaryIndexes.Clear();
GlobalSecondaryIndexNames.Clear();
if (table.GlobalSecondaryIndexes != null)
{
foreach (var index in table.GlobalSecondaryIndexes)
{
GlobalSecondaryIndexes[index.IndexName] = index;
GlobalSecondaryIndexNames.Add(index.IndexName);
}
}
Attributes.Clear();
foreach (var attribute in table.AttributeDefinitions)
{
Attributes.Add(attribute);
}
keyNames = Keys.Keys.ToArray();
}
void DescribeTableListener()
{
resultText.text = ("\n*** Retrieving table information ***\n");
var request = new DescribeTableRequest
{
TableName = @"ProductCatalog"
};
Client.DescribeTableAsync(request, (result) =>
{
if (result.Exception != null)
{
resultText.text += result.Exception.Message;
Debug.Log(result.Exception);
return;
}
var response = result.Response;
TableDescription description = response.Table;
resultText.text += ("Name: " + description.TableName + "\n");
resultText.text += ("# of items: " + description.ItemCount + "\n");
resultText.text += ("Provision Throughput (reads/sec): " + description.ProvisionedThroughput.ReadCapacityUnits + "\n");
resultText.text += ("Provision Throughput (reads/sec): " + description.ProvisionedThroughput.WriteCapacityUnits + "\n");
}, null);
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeTable operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeTable operation on AmazonDynamoDBClient.</param>
/// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndDescribeTable
/// operation.</returns>
public IAsyncResult BeginDescribeTable(DescribeTableRequest request, AsyncCallback callback, object state)
{
var marshaller = new DescribeTableRequestMarshaller();
var unmarshaller = DescribeTableResponseUnmarshaller.Instance;
return BeginInvoke<DescribeTableRequest>(request, marshaller, unmarshaller,
callback, state);
}
private Table CreateTable()
{
CreateTableRequest createRequest = new CreateTableRequest
{
TableName = this._tableName,
KeySchema = new List<KeySchemaElement>
{
new KeySchemaElement
{
AttributeName = ATTRIBUTE_SESSION_ID, KeyType = "HASH"
}
},
AttributeDefinitions = new List<AttributeDefinition>
{
new AttributeDefinition
{
AttributeName = ATTRIBUTE_SESSION_ID, AttributeType = "S"
}
},
ProvisionedThroughput = new ProvisionedThroughput
{
ReadCapacityUnits = this._initialReadUnits,
WriteCapacityUnits = this._initialWriteUnits
}
};
CreateTableResponse response = this._ddbClient.CreateTable(createRequest);
DescribeTableRequest descRequest = new DescribeTableRequest
{
TableName = this._tableName
};
// Wait till table is active
bool isActive = false;
while (!isActive)
{
Thread.Sleep(DESCRIBE_INTERVAL);
DescribeTableResponse descResponse = this._ddbClient.DescribeTable(descRequest);
string tableStatus = descResponse.Table.TableStatus;
if (string.Equals(tableStatus, ACTIVE_STATUS, StringComparison.InvariantCultureIgnoreCase))
isActive = true;
}
Table table = Table.LoadTable(this._ddbClient, this._tableName, DynamoDBEntryConversion.V1);
return table;
}
/// <summary>
/// Returns information about the table, including the current status of the table, when
/// it was created, the primary key schema, and any indexes on the table.
///
/// <note>
/// <para>
/// If you issue a DescribeTable request immediately after a CreateTable request, DynamoDB
/// might return a ResourceNotFoundException. This is because DescribeTable uses an eventually
/// consistent query, and the metadata for your table might not be available at that moment.
/// Wait for a few seconds, and then try the DescribeTable request again.
/// </para>
/// </note>
/// </summary>
/// <param name="tableName"> The name of the table to describe.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
///
/// <returns>The response from the DescribeTable service method, as returned by DynamoDB.</returns>
/// <exception cref="Amazon.DynamoDBv2.Model.InternalServerErrorException">
/// An error occurred on the server side.
/// </exception>
/// <exception cref="Amazon.DynamoDBv2.Model.ResourceNotFoundException">
/// The operation tried to access a nonexistent table or index. The resource might not
/// be specified correctly, or its status might not be <code>ACTIVE</code>.
/// </exception>
public Task<DescribeTableResponse> DescribeTableAsync(string tableName, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var request = new DescribeTableRequest();
request.TableName = tableName;
return DescribeTableAsync(request, cancellationToken);
}