deleting document from cosmos db using C# and cosmos client

Question

I am new to Cosmos DB and after reading through the microsoft docs am attempting to delete records from a cosmos db. I have tried to follow the example as closely as possible. The record is being found and read but I am running into a not found error when attempting to delete.

The collection is partitioned, and I have mentioned partition key as mentioned in the examples, but still results in an error.

    private async Task QueryItemsAsync()
    {
        var sqlQueryText = "SELECT * FROM c WHERE c.tenantId = '5c6cb2d77c1c2edc001b9007' and c.id = 'abae8abf-5836-464f-8129-1f0e83a1f639'";

        QueryDefinition queryDefinition = new QueryDefinition(sqlQueryText);
        FeedIterator<Order> queryResultSetIterator = this.container.GetItemQueryIterator<Order>(queryDefinition);

        List<Order> orders = new List<Order>();

        while (queryResultSetIterator.HasMoreResults)
        {
            FeedResponse<Order> currentResultSet = await queryResultSetIterator.ReadNextAsync();
            foreach (Order o in currentResultSet)
            {
                orders.Add(o);
                Console.WriteLine("\tRead {0}\n", o);       
            }
        }
    }         
    private async Task DeleteFamilyItemAsync()
    {
        var partitionKeyValue = "tenantId";
        var orderId = "abae8abf-5836-464f-8129-1f0e83a1f639";

        // Delete an item. Note we must provide the partition key value and id of the item to delete
        ItemResponse<Order> orderResponse = await this.container.DeleteItemAsync<Order>(orderId, new PartitionKey(partitionKeyValue));
        Console.WriteLine("Deleted Family [{0},{1}]\n", partitionKeyValue, orderId);
    }

As seen below the record is being read so it is being found but when I attempt to delete it, it is not being deleted. Read {"Id":null,"patientId":null,"orchestrationId":null,"preOrderId":"88557ec1-dccb-4397-9ce4-20b6aeb1d636","cartId":"adc463ef-7f38-4fa8-8f37-e505db3a5134","confirmationNum":"QDQ-9244014-14708","cartConfirmationNum":"IBM-8622967-14079","countryCode":null,"type":"order","cancelDate":null,"id":"abae8abf-5836-464f-8129-1f0e83a1f639"}

NotFound error occurred: CosmosRequestException;StatusCode=NotFound;SubStatusCode=0;ActivityId=6dd52d23-68c8-4e6d-b4ff-70cd2a6921cf;RequestCharge=1.24;Message=Response status code does not indicate success: 404 Substatus: 0 Reason: ().; End of demo, press any key to exit.

Answer 1

The problem is with your partitionKeyValue . You are providing the partition key definition instead of the value. The value is the actual tenant id not the text tenantId .

Your delete code should then look like this:

private async Task DeleteFamilyItemAsync()
{
    var partitionKeyValue = "5c6cb2d77c1c2edc001b9007"; // <-- This is the change
    var orderId = "abae8abf-5836-464f-8129-1f0e83a1f639";

    // Delete an item. Note we must provide the partition key value and id of the item to delete
    ItemResponse<Order> orderResponse = await this.container.DeleteItemAsync<Order>(orderId, new PartitionKey(partitionKeyValue));
    Console.WriteLine("Deleted Family [{0},{1}]\n", partitionKeyValue, orderId);
}