Container.ReadManyItemsStreamAsync Method

Reference

Definition

Namespace:: Microsoft.Azure.Cosmos

Assembly:: Microsoft.Azure.Cosmos.Client.dll

Package:: Microsoft.Azure.Cosmos v3.45.0

Source:: Container.cs

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 multiple items from a container using Id and PartitionKey values.

public abstract System.Threading.Tasks.Task<Microsoft.Azure.Cosmos.ResponseMessage> ReadManyItemsStreamAsync (System.Collections.Generic.IReadOnlyList<(string id, Microsoft.Azure.Cosmos.PartitionKey partitionKey)> items, Microsoft.Azure.Cosmos.ReadManyRequestOptions readManyRequestOptions = default, System.Threading.CancellationToken cancellationToken = default);

abstract member ReadManyItemsStreamAsync : System.Collections.Generic.IReadOnlyList<ValueTuple<string, Microsoft.Azure.Cosmos.PartitionKey>> * Microsoft.Azure.Cosmos.ReadManyRequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Cosmos.ResponseMessage>

Public MustOverride Function ReadManyItemsStreamAsync (items As IReadOnlyList(Of ValueTuple(Of String, PartitionKey)), Optional readManyRequestOptions As ReadManyRequestOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task(Of ResponseMessage)

Parameters

items: IReadOnlyList<ValueTuple<String,PartitionKey>>

List of item.Id and PartitionKey

readManyRequestOptions: ReadManyRequestOptions

Request Options for ReadMany Operation

cancellationToken: CancellationToken

(Optional) CancellationToken representing request cancellation.

Returns

Task<ResponseMessage>

A Task containing a ResponseMessage which wraps a Stream containing the response.

Examples

IReadOnlyList<(string, PartitionKey)> itemList = new List<(string, PartitionKey)>
{
    ("Id1", new PartitionKey("pkValue1")),
    ("Id2", new PartitionKey("pkValue2")),
    ("Id3", new PartitionKey("pkValue3"))
};

using (ResponseMessage response = await this.Container.ReadManyItemsStreamAsync(itemList))
{
    if (!response.IsSuccessStatusCode)
    {
        //Handle and log exception
        return;
    }

    //Read or do other operations with the stream
    using (StreamReader streamReader = new StreamReader(response.Content))
    {
        string content = streamReader.ReadToEndAsync();
    }

}

Remarks

ReadManyItemsStreamAsync(IReadOnlyList<ValueTuple<String,PartitionKey>>, ReadManyRequestOptions, CancellationToken) is meant to perform better latency-wise than a query with IN statements to fetch a large number of independent items.

Applies to

다음을 통해 공유