Delete document in CosmosDB through azure function

Question

Reading the Azure portal I\'ve understood how to make a POST, PUT and GET operation with CosmosDB through the Azure Functions. But del

Answer 1

You could do this by binding directly to the DocumentClient itself, and delete the Document programatically.

[FunctionName("DeleteDocument")]
public static async Task Run(
    [TimerTrigger("00:01", RunOnStartup = true)] TimerInfo timer,
    [DocumentDB] DocumentClient client,
    TraceWriter log)
{
    var collectionUri = UriFactory.CreateDocumentCollectionUri("ItemDb", "ItemCollection");
    var documents = client.CreateDocumentQuery(collectionUri);

    foreach (Document d in documents)
    {
        await client.DeleteDocumentAsync(d.SelfLink);
    }
}

See CosmosDBSamples