Through the years, ASP.NET team have been releasing new ASP.NET SessionState and OutputCache providers to help developers make their web applications ready for the cloud environment. Today we are announcing a new OutputCache provider, Microsoft.AspNet.OutputCache.CosmosDBTableAsyncOutputCacheProvider, to enable your applications store the OutputCache data into CosmosDB. It supports both Azure CosmosDB Table and Azure Storage Table.
https://blogs.msdn.microsoft.com/webdev/2018/10/25/announcing-cosmosdb-table-async-outputcache-provider-release-and-asp-net-providers-connected-service-extension-update/