1 files changed, 49 insertions, 0 deletions
diff --git a/ExamTemplate/Services/CloudinaryService.cs b/ExamTemplate/Services/CloudinaryService.cs
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+++ b/ExamTemplate/Services/CloudinaryService.cs
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+using System.Collections.Generic;
+using System.IO;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using CloudinaryDotNet;
+using CloudinaryDotNet.Actions;
+using Microsoft.AspNetCore.Http;
+
+namespace ExamTemplate.Services
+{
+	public class CloudinaryService
+	{
+		// Regex for getting the filename without (final) filename extension
+		// So, from image.png, it will match image, and from doc.my.txt will match doc.my
+		private static readonly Regex s_imageRegex = new(".*(?=\\.)");
+
+		private readonly Cloudinary _cloudinary;
+
+		public CloudinaryService(string cloudName, string apiKey, string apiSecret)
+		{
+			this._cloudinary = new Cloudinary(new Account(cloudName, apiKey, apiSecret));
+		}
+
+		public async Task<List<string>> UploadFilesToCloud(List<IFormFile> formFiles)
+		{
+			List<string> fileUrls = new();
+			foreach (var formFile in formFiles)
+			{
+				string fileName = s_imageRegex.Match(formFile.FileName).ToString();
+
+				using var ms = new MemoryStream();
+				formFile.CopyTo(ms);
+				byte[] formBytes = ms.ToArray();
+
+				RawUploadParams rawUploadParams = new()
+				{
+					File = new FileDescription(fileName, new MemoryStream(formBytes)),
+					PublicId = fileName,
+					UseFilename = true
+				};
+
+				RawUploadResult rawUploadResult = await this._cloudinary.UploadAsync(rawUploadParams);
+				fileUrls.Add(rawUploadResult.Url.AbsoluteUri);
+			}
+
+			return fileUrls;
+		}
+	}
+}