Multipart not reading all/any parts

Hi, I am trying to upload an image/file…

I ran into a problem that the multiplart.readAllParts() returns everytime empty list, even when I send a file! I migrated from a version 0.3.2 (I think) to 0.9.1… I have read this issue: https://github.com/ktorio/ktor/issues/139 but it seems as no one has answered the question.

I have even tried creating a form with the correct enctype and uploading the file through the form, without any success. I also tried uploading the file through $.ajax() method in jqeury, also without any success.

My code:

if(call.request.isMultipart()) {
                val multipart = call.receiveMultipart()
                println("FILES:" + multipart.readPart())
                multipart.forEachPart { part ->
                    when (part) {
                        is PartData.FileItem -> {
                            files += part
                        }
                    }
                }
            }

I was reading this documentation: http://ktor.io/servers/uploads.html

btw, thank you very much for developing ktor! I am developing my graduation project in it!

[betterclever]

I am using Ktor version: 0.9.2-alpha-2 with Netty engine. My code looks like:

route("/files") {
                    post("/new") {
                        val multipart = call.receiveMultipart()
                        var title = ""
                        var videoFile: File? = null

                        multipart.forEachPart { part ->
                            when (part) {
                                is PartData.FormItem -> if (part.name == "title") {
                                    title = part.value
                                }
                                is PartData.FileItem -> {
                                    val ext = File(part.originalFileName).extension
                                    val file = File(uploadDir, "upload-${System.currentTimeMillis()}-${"AVX".hashCode()}-${title.hashCode()}.$ext")
                                    part.streamProvider().use { its -> file.outputStream().buffered().use { its.copyTo(it) } }
                                    videoFile = file
                                }
                            }

                            part.dispose()
                        }

                        call.respond("done")
                    }
                }

I tried putting some debugging breakpoints. The call doesn’t seem to enter the forEachPart and server is stuck with no logs whatsoever. I am sending request with Postman and can confirm same multipart request works with my nodejs express server.

I tried running YouKube example. While running example, the browser seems to be stuck here pointing towards this issue only.

[monarezio]

I reproduced the same bug as @betterclever

Ktor: 0.9.1 Engine: Netty

I guess its because of the readPart() It returns everytime null, I tried looking deeper into the code, but, since I did not design Ktor, it is very hard for me to understand the code 😕.