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DART message with multipart / form data

in DART lang how to specify POST Content-Type request for

multipart/form-data

My DART code:

sendDatas(dynamic data) {
final req = new HttpRequest();
req.onReadyStateChange.listen((Event e) {
  if (req.readyState == HttpRequest.DONE &&
      (req.status == 200 || req.status == 0)) {
    window.alert("upload complete");
  }
});
req.open("POST", "/upload");
req.send(data);

}

I am doing a POST with a file

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2 answers


I think you should be using HttpRequest.postFormData(url, data)

here. Then you can use the following:

FormData data = new FormData(); // from dart:html

data.append(key, value);

HttpRequest.request('/upload', method: 'POST', sendData: data).then((HttpRequest r) {
  // ...
});


Regards, Robert

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The http

package is supported on the server . This package can also be used in the browser, but it seems the file multipart_request.dart

cannot be imported in the browser because it uses dart:io

;

I suggest creating a feature request at http://dartbug.com/new .



You can also try to copy the code from the [http] package and remove the package references io

and use the browser API.

How this can be used on the server is shown here http://www.dartdocs.org/documentation/http/0.11.1+1/index.html#http/http.MultipartRequest

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