public async Task OnBeforeCreateAsync(BeforeCreateContext context)
{
if (!context.Metadata.ContainsKey("filename"))
{
context.FailRequest("filename metadata must be specified. ");
_logger.LogInformation($"Fileupload failed: filename metadata must be specified");
}
if (!context.Metadata.ContainsKey("filetype"))
{
context.FailRequest("filetype metadata must be specified. ");
_logger.LogInformation($"Fileupload failed: filetype metadata must be specified");
}
var metadataInString = "";
foreach (var item in context.Metadata)
{
if (metadataInString.Length != 0)
{
metadataInString += ", ";
}
metadataInString += $"\"{item.Key}:{item.Value.GetString(Encoding.UTF8)}\"";
}
_logger.LogInformation($"Fileupload started: {metadataInString}");
await Task.CompletedTask;
}
/// <summary>
/// Handle the pre upload required metadata
/// </summary>
private Task OnBeforeCreate(BeforeCreateContext ctx)
{
// Partial files are not complete so we do not need to validate the metadata in our example.
if (ctx.FileConcatenation is FileConcatPartial)
{
return(Task.CompletedTask);
}
if (!ctx.Metadata.ContainsKey("name"))
{
ctx.FailRequest("name metadata must be specified.");
}
if (!ctx.Metadata.ContainsKey("contentType"))
{
ctx.FailRequest("contentType metadata must be specified.");
}
return(Task.CompletedTask);
}