Unable to use multiple files with multipartBody

[Shreemanarjun]

Issue

I want to accept multiple files with given doc name in swagger ui. the docName part is rendering correctly as it Array but when i define it show somehow different. i think somehow the plugin unable to overwrite the file class which causes the given problem.

Screenshot

Swagger Config

schemas {
            overwrite<File>(
                Schema<Any>().also {
                    it.type = "string"
                    it.format = "binary"
                }
            )
        }

api.json

["java.io.File"](http://localhost:8181/api.json): {
"title": "File",
"type": "object",
"properties": {}
}

Solution needed: if the file format is binary and type somehow will be string then it will render as usual.

  java.io.File:
      title: File
      type: string
      format: binary
      properties: {}

Route

     post("/verify", {
            tags = listOf("Doctor")
            request {
                multipartBody {
                    part<Array<String>>(
                        name = "docName"
                    )
                    part<Array<File>>(
                        name = "docs",

                        )
                }

            }

        }) {
            val multipartData = call.receiveMultipart()
            var fileDescription = ""
            var fileName = ""
            multipartData.forEachPart { part ->
                when (part) {
                    is PartData.FormItem -> {
                        fileDescription = part.value
                    }

                    is PartData.FileItem -> {
                        fileName = part.originalFileName as String
                        val fileBytes = part.streamProvider().readBytes()
                        val savedfile = File("/uploads/$fileName")
                        savedfile.writeBytes(fileBytes)
                        println("file uploaded: $fileName into ${savedfile.absolutePath}")
                    }

                    else -> {}
                }
                part.dispose()
            }

            call.respondText("$fileDescription is uploaded to 'uploads/$fileName'")

        }

[SMILEY4]

Hi,

overwrite can only overwrite "top level" types, i.e. you are overwriting "File" but the type in the body is "Array".

You can solve this by defining the type of the body as:

multipartBody {
    //...
    part(
        name = "docs",
        type = array<File>() // manually define the type as an array of "File"
    )
}