covidok-backend/CoviDok/BLL/MinioHandler.cs

using Minio;
using Minio.Exceptions;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace CoviDok.BLL
{
    class MinioHandler
    {
        private MinioClient Client = null;

        public MinioHandler(string Host, string AccessKey, string SecretKey)
        {
            //Client = new MinioClient(
            //"192.168.0.160:9000",
            //"secretaccesskey",
            //"secretsecretkey");
            Client = new MinioClient(Host, AccessKey, SecretKey);
        }

        public async Task<MinioResult> UploadImage(string BucketName, Stream FilePath, long size, string ObjectName)
        {
            try
            {
                // Make a bucket on the server, if not already present.
                bool found = await Client.BucketExistsAsync(BucketName);
                if (!found)
                {
                    await Client.MakeBucketAsync(BucketName);
                }
                // Upload a file to bucket.
                await Client.PutObjectAsync(BucketName, ObjectName, FilePath, size);
                return new MinioResult(true, BucketName + ":" + ObjectName);
            }
            catch (MinioException e)
            {
                return new MinioResult(false, e.Message);
            }
        }

        public async Task GetImage(string ImageID, Action<Stream> callback)
        {
            string[] attrs = ImageID.Split(":");
            await Client.GetObjectAsync(attrs[0], attrs[1], callback);
        }
    }
}