IDocumentClient.ReadDatabaseFeedAsync(FeedOptions) Method

Reference

Definition

Namespace:: Microsoft.Azure.Documents

Assemblies:: Microsoft.Azure.DocumentDB.Core.dll, Microsoft.Azure.Documents.Client.dll

Packages:: Microsoft.Azure.DocumentDB v2.18.0, Microsoft.Azure.DocumentDB.Core v2.18.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Reads the feed (sequence) of Database for a database account from the Azure Cosmos DB service as an asynchronous operation.

public System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.FeedResponse<Microsoft.Azure.Documents.Database>> ReadDatabaseFeedAsync (Microsoft.Azure.Documents.Client.FeedOptions options = default);

abstract member ReadDatabaseFeedAsync : Microsoft.Azure.Documents.Client.FeedOptions -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.FeedResponse<Microsoft.Azure.Documents.Database>>

Public Function ReadDatabaseFeedAsync (Optional options As FeedOptions = Nothing) As Task(Of FeedResponse(Of Database))

Parameters

options: FeedOptions

(Optional) The request options for the request.

Returns

Task<FeedResponse<Database>>

A System.Threading.Tasks containing a ResourceResponse<TResource> which wraps a Database containing the read resource record.

Exceptions

DocumentClientException

This exception can encapsulate many different types of errors. To determine the specific error always look at the StatusCode property. Some common codes you may get when creating a Document are:

StatusCode	Reason for exception
429	TooManyRequests - This means you have exceeded the number of request units per second. Consult the DocumentClientException.RetryAfter value to see how long you should wait before retrying this operation.

Examples

int count = 0;
string continuation = string.Empty;
do
{
    // Read the feed 10 items at a time until there are no more items to read
    FeedResponse<Database> response = await client.ReadDatabaseFeedAsync(new FeedOptions
                                                                {
                                                                    MaxItemCount = 10,
                                                                    RequestContinuation = continuation
                                                                });

    // Append the item count
    count += response.Count;

    // Get the continuation so that we know when to stop.
     continuation = response.ResponseContinuation;
} while (!string.IsNullOrEmpty(continuation));

Applies to

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