How to execute an Azure table storage query async? client version 4.0.1

Question

Want to execute queries Async on Azure Storage Client Version 4.0.1

There is NO method ExecuteQueryAsync()..

I am missing something? Should we continue to use th

Answer 1

This is in addition on to @JoseCh.'s answer.

Here is an extension method which allows you to specify an EntityResolver:

public static async Task> ExecuteQueryAsync(this CloudTable table, TableQuery query, EntityResolver resolver, Action> onProgress = null, CancellationToken cancelToken = default(CancellationToken))
            where T : ITableEntity, new()
{
    var items = new List();
    TableContinuationToken token = null;

    do
    {
        TableQuerySegment seg = await table.ExecuteQuerySegmentedAsync(query: query, resolver: resolver, token: new TableContinuationToken(), cancellationToken: cancelToken).ConfigureAwait(false);
        token = seg.ContinuationToken;
        items.AddRange(seg);
        onProgress?.Invoke(items);
     }
     while (token != null && !cancelToken.IsCancellationRequested);
         return items;
     }
}

It can be used if you only want to return the result set of a single column in storage:

// maps to a column name in storage
string propertyName = nameof(example.Category);

// Define the query, and select only the Category property.
var projectionQuery = new TableQuery().Select(new string[] { propertyName });

// Define an entity resolver to work with the entity after retrieval.
EntityResolver resolver = (pk, rk, ts, props, etag) => props.ContainsKey(propertyName) ? props[propertyName].StringValue : null;

var categories = (await someTable.ExecuteQueryAsync(query: projectionQuery, resolver: resolver).ConfigureAwait(false)).ToList()