如何使用.Net Standard查询Azure表存储

Question

I have a .Net Standard client application running on UWP.

My client application contacts the server that generates a sas key like so:

var myPrivateStorageAccount = CloudStorageAccount.Parse(mystorageAccountKey);
var myPrivateTableClient = myPrivateStorageAccount.CreateCloudTableClient();
SharedAccessTablePolicy pol = new SharedAccessTablePolicy()
{
    SharedAccessExpiryTime = DateTime.UtcNow.AddMinutes(59),
    Permissions = SharedAccessTablePermissions.Query | SharedAccessTablePermissions.Add
};
CloudTable myPrivateTable = myPrivateTableClient.GetTableReference(tableName);
String sas = myPrivateTable.GetSharedAccessSignature(pol);
return sas;

My client application then runs the following:

StorageCredentials creds = new StorageCredentials(sas);

this.tableClient = new CloudTableClient(tableServiceURI, creds);
this.table = tableClient.GetTableReference(tableName);
TableQuery<DynamicTableEntity> projectionQuery = new TableQuery<DynamicTableEntity>().Select(new string[] { "DocumentName" }).Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, cc));
 var res = await table.ExecuteQuerySegmentedAsync<DynamicTableEntity>(projectionQuery, null);

and gets the following error:

Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature. sr is mandatory. Cannot be empty

but as this is tablestorage I dont think sr is required

and my SAS key looks fine to me:

?sv=2018-03-28&tn=MyTable&sig=RandomSig151235341543&st=2019-01-17T12%3A00%3A28Z&se=2019-01-17T12%3A59%3A28Z&sp=ra

so whats the problem here?

Answer 1

Ok so this is kind of stupid but I will post anyway.

I was sending the request to:

https://myaccount.blob.core.windows.net/

and should have been sending the request to:

https://myaccount.table.core.windows.net/