Container.ReadManyItemsStreamAsync Método

Definición

Espacio de nombres:

Microsoft.Azure.Cosmos

Ensamblado:

Microsoft.Azure.Cosmos.Client.dll

Paquete:

Microsoft.Azure.Cosmos v3.39.0

Source:

Container.cs

Lee varios elementos de un contenedor mediante los valores Id y PartitionKey.

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)

Parámetros

items

IReadOnlyList<ValueTuple<String,PartitionKey>>

Lista de elementos. Id. y PartitionKey

readManyRequestOptions

ReadManyRequestOptions

Opciones de solicitud para la operación ReadMany

cancellationToken

CancellationToken

(Opcional) CancellationToken que representa la cancelación de la solicitud.

Devoluciones

Task<ResponseMessage>

que Task contiene un ResponseMessageStream objeto que contiene la respuesta.

Ejemplos

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();
    }

}

Comentarios

ReadManyItemsStreamAsync(IReadOnlyList<ValueTuple<String,PartitionKey>>, ReadManyRequestOptions, CancellationToken) está diseñado para mejorar la latencia que una consulta con instrucciones IN para capturar un gran número de elementos independientes.