Hi all. I have a form that I receive 3 fields string int file (pdf). But I'm not sure how to do t...

# ktor

[Rodrigo Silva]

Hi all. I have a form that I receive 3 fields string int file (pdf). But I'm not sure how to do this with ktor/kotlin. My class

data class SomeClass (
name: String,
age: int,
document: ByteArray (is it correct?)
)
fun Route.test() {
 route("/test") {
   post("/doc") {
      val receive = call.receive<SomeClass>()
...

[ayodele]

You have to upload the PDF first to a/your storage then pass the download link to your API. That is replacing document type to String (download url)

[Rodrigo Silva]

Ok, how would i do that?

[Aleksei Tirman [JB]]

If you make a multipart/form-data request then you can use the ApplicationCall.receiveMultipart method to receive a form content on the server side.

[Rodrigo Silva]

@Aleksei Tirman [JB]
As a multipart, I just don't inform the object that I will receive between <>, right?
it will loop through each key and value and perform the given logic.
in the example, it could be

data class SomeClass (
name: String,
age: int,
}

multipartData.forEachPart { part ->
                when (part) {
                    is PartData.FormItem -> {
                       fileDescription = part.value
                        add each value to someClass class ???
                    }

                    is PartData.FileItem -> {
                        fileName = part.originalFileName as String
                        var fileBytes = part.streamProvider().readBytes()
                        File("uploads/$fileName").writeBytes(fileBytes)
                    }

                    else -> {}
                }
          write someClass to the database

[Aleksei Tirman [JB]]

Yes.

[ESchouten]

Alternately, you could encode the pfd to base64 string and decode it in the server