public async Task <IFileDescriptor> GetBlobMetaDataAsync(string fileId)
{
//string fileId = fileRef.Value;
var containerClient = await GetBlobContainerAsync();
BlobClient blobClient = containerClient.GetBlobClient(fileId);
if (await blobClient.ExistsAsync())
{
BlobProperties properties = await blobClient.GetPropertiesAsync();
var fileName = properties.Metadata[FileNameMetaDataAttribut];
return(new FileDescriptor()
{
Id = fileId,
FileName = fileName,
ContentType = properties.ContentType,
Size = properties.ContentLength
});
}
else
{
throw new Exception("Blob doesn't exist");
}
}
private static async Task GetBlobPropertiesAsync(BlobClient blobClient)
{
Console.WriteLine($"4. Get blob properties");
var properties = await blobClient.GetPropertiesAsync();
Console.WriteLine($" - Content type: {properties.Value.ContentType}");
Console.WriteLine($" - Blob type: {properties.Value.BlobType}");
Console.WriteLine($" - Created on: {properties.Value.CreatedOn}");
Console.WriteLine($" - Last modified: {properties.Value.LastModified}");
}
private static async Task GetBlobMetadataAsync(BlobClient blobClient)
{
Console.WriteLine($"6. Get blob metadata");
var blobProperties = await blobClient.GetPropertiesAsync();
foreach (var metadata in blobProperties.Value.Metadata)
{
Console.WriteLine($" - {metadata.Key} : {metadata.Value}");
}
}
private static async Task SetBlobPropertiesAsync(BlobClient blobClient)
{
Console.WriteLine($"3. Set blob properties");
var blobProperties = await blobClient.GetPropertiesAsync();
BlobHttpHeaders headers = new()
{
ContentType = "text/html",
ContentLanguage = "en-us",
CacheControl = blobProperties.Value.CacheControl,
ContentDisposition = blobProperties.Value.ContentDisposition,
ContentEncoding = blobProperties.Value.ContentEncoding,
ContentHash = blobProperties.Value.ContentHash
};
await blobClient.SetHttpHeadersAsync(headers);
}