Edwardie Fileupload Better May 2026

Many libraries send a preflight OPTIONS request per chunk, adding latency. Edwardie caches the preflight result where possible, slashing overhead.

For files over 500MB, even streaming can be dicey on unstable connections. The solution is Chunking (splitting the file into 5MB pieces).

How to make Edwardie better with chunking: edwardie fileupload better

Server Logic (C#):

public async Task<IActionResult> UploadChunk()
var chunk = Request.Form.Files[0];
    var fileName = Request.Form["fileName"];
    var chunkNumber = int.Parse(Request.Form["chunkNumber"]);
    var totalChunks = int.Parse(Request.Form["totalChunks"]);
var tempPath = Path.Combine(ServerTempPath, fileName);
// Append this chunk to the file
using (var stream = new FileStream(tempPath, chunkNumber == 0 ? FileMode.Create : FileMode.Append))
await chunk.CopyToAsync(stream);
if (chunkNumber == totalChunks - 1)
// All chunks received. Move file to final destination.
    File.Move(tempPath, finalDestinationPath);
    await TriggerPostProcessingAsync(finalDestinationPath);
return Ok(new  received = chunkNumber );

With this, Edwardie supports pause/resume and retry logic. Your competitors (default uploaders) cannot do this. Many libraries send a preflight OPTIONS request per

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If you define Content-Type: multipart/form-data but forget to define a boundary string, the server won't know where one field ends and the file begins.