25 Days of Serverless

blob-trigger.cs

[FunctionName(nameof(GiftPhotoValidationFunction))]
public static async Task Run([BlobTrigger(_containerName)] CloudBlockBlob blockBlob, ILogger log)
{
    log.LogInformation("Validating Gift Image is a PNG");

    if (blockBlob.Name.EndsWith(".png", StringComparison.InvariantCultureIgnoreCase))
    {
        log.LogInformation("Confirmed PNG");
    }
    else
    {
        log.LogInformation($"Photo {blockBlob.Name} is not a PNG");

        log.LogInformation($"Deleting {blockBlob.Name} from container");

        await blockBlob.DeleteAsync().ConfigureAwait(false);

        log.LogInformation($"Deleted {blockBlob.Name}");
    }
}