How to save data with upload? about swifter

[damian-kolakowski]

hi @swierpa :) please have a look at the sample code below:

class ViewController: UIViewController {

    private var server: HttpServer?

    override func viewDidLoad() {
        super.viewDidLoad()

        let server = HttpServer();

        server.get["/upload"] = { r in
            return .OK(.Html("<form method=\"POST\" action=\"/upload\" enctype=\"multipart/form-data\">" +
                "<input name=\"my_file\" type=\"file\"/>" +
                "<button type=\"submit\">Send File</button>" +
            "</form>"))
        }
        server.post["/upload"] = { r in
            if let myFileMultipart = r.parseMultiPartFormData().filter({ $0.name == "my_file" }).first {
                guard let documentsUrl = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).first else {
                    return .InternalServerError
                }
                let data: NSData = myFileMultipart.body.withUnsafeBufferPointer { pointer in
                    return NSData(bytes: pointer.baseAddress, length: myFileMultipart.body.count)
                }
                guard let fileSaveUrl = NSURL(string: "name_for_file.txt", relativeToURL: documentsUrl) else {
                    return .InternalServerError
                }
                print(fileSaveUrl)
                data.writeToURL(fileSaveUrl, atomically: true)
                return .OK(.Html("Your file has been uploaded !"))
            }
            return .InternalServerError
        }

        do {
            try server.start(9099)
        } catch {
            print("Server start error: \(error)")
        }
        self.server = server
    }
}

best,
dk

[theRealGupta]

Hi @glock45
Thank you for the solution its help a lot to me. but your solution is outdated because of the swift update.
so I did some Changes in your solution. Please verify that.

server.post["/upload"] = { r in
        if let multipart = r.parseMultiPartFormData().filter({ $0.name == "newfile" }).first {
            guard let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else {
                return .internalServerError
            }
            let data: NSData = multipart.body.withUnsafeBufferPointer { pointer in
                return NSData(bytes: pointer.baseAddress, length: multipart.body.count)
            }
            
            guard let fileSaveUrl = NSURL(string: multipart.fileName ?? "NoNameFile.txt", relativeTo: documentsUrl) else {
                return .internalServerError
            }
            print(fileSaveUrl)
            data.write(to: fileSaveUrl as URL, atomically: true)
            return HttpResponse.ok(.html("Your file has been uploaded !"))
        }
        return .internalServerError
    }

Thank you,
Anup Gupta

[theRealGupta]

How to Upload Folder ???

I am able to upload a single file successfully.
selection of the folder and and in server.post["/upload"] I am geeting all files of folder.
but unable to upload folder.