Download Files .net Core !full! | Secure |

The most common way to serve a file from a controller is by returning a FileResult . The ControllerBase.File() method provides multiple overloads to handle different data sources. Simple Download from a Byte Array

When dealing with files larger than a few hundred megabytes, you should avoid loading the entire file into memory. Instead, use to stream the file directly to the client in small chunks. Implementing FileStreamResult download files .net core

Setting this to true allows clients to perform partial requests (HTTP 206), which is essential for resuming interrupted downloads . 3. Downloading Multiple Files as a ZIP Microsoft Learnhttps://learn.microsoft.com Download file in C# .Net Core - Microsoft Q&A The most common way to serve a file

[HttpGet("stream/{fileName}")] public IActionResult StreamFile(string fileName) { var path = Path.Combine(_env.ContentRootPath, "App_Data", fileName); if (!System.IO.File.Exists(path)) return NotFound(); var stream = new FileStream(path, FileMode.Open, FileAccess.Read); // Returning File with a stream automatically handles chunked delivery return File(stream, "application/octet-stream", fileName, enableRangeProcessing: true); } Use code with caution. Instead, use to stream the file directly to

[HttpGet("download")] public IActionResult DownloadFile() { var filePath = Path.Combine(_env.WebRootPath, "documents", "report.pdf"); byte[] fileBytes = System.IO.File.ReadAllBytes(filePath); return File(fileBytes, "application/pdf", "UserReport.pdf"); } Use code with caution. Easy to implement.