阿里云 OSS

{
  "FileStorage": {
    "Aliyun": {
      "Endpoint": "oss-cn-hangzhou.aliyuncs.com",
      "AccessKeyId": "LTAIxxxxxxxx",
      "AccessKeySecret": "your-secret-key",
      "DefaultBucketName": "my-bucket"
    }
  }
}

builder.Services.AddBitzsoftAliyunOssFileStorage(builder.Configuration.GetSection("FileStorage:Aliyun"));

public class FileService(IFileStore store)
{
    public async Task<string> UploadAsync(Stream stream, string fileName)
    {
        var result = await store.SaveFileAsync(stream, fileName);
        return result.Url;
    }

    public async Task<string> GetDownloadUrlAsync(string fileName)
    {
        return await store.GenerateDownloadUrlAsync(fileName);
    }
}