UploadJsonToAzureBlobStorage.cs

        using Azure.Storage.Blobs;

        public string UploadJsonToAzureBlobStorage(string json)
        {

            // Name of the share, directory, and file
            string shareName = ConfigurationManager.AppSettings.Get("inRiver.StorageAccountShareReference");
            string storageAccountName = ConfigurationManager.AppSettings.Get("inRiver.StorageAccountName");
            string storageAccountKey = ConfigurationManager.AppSettings.Get("inRiver.StorageAccountKey");
            //Create a unique name for the container
            string containerName = "datafeedwatch";
            string fileName = "items.json";
            string connectionString = $"DefaultEndpointsProtocol=https;AccountName={storageAccountName};AccountKey={storageAccountKey};EndpointSuffix=core.windows.net";

            // Create a BlobServiceClient object which will be used to create a container client
            BlobServiceClient blobServiceClient = new BlobServiceClient(connectionString);

            // Create the container and return a container client object
            BlobContainerClient containerClient = blobServiceClient.GetBlobContainerClient(containerName);
            containerClient.CreateIfNotExists();
            // Get a reference to our file 
            BlobClient file = containerClient.GetBlobClient(fileName);
            file.DeleteIfExists();
            // upload the file
            byte[] bytes = Encoding.ASCII.GetBytes(json);
            using (MemoryStream stream = new MemoryStream(bytes))
            {
                file.Upload(stream);
            }
            return file.Uri.ToString();

        }