django-import-export outside admin

Question

I am trying to implement a simple xls file import and save to a model using django-import-export. Unfortunately the docs only cover the admin integration. I am stuck here in my example code:

class UploadFileForm(forms.Form):
    file = forms.FileField()


class ExportSpec(resources.ModelResource):
    class Meta:
        model = Specialty

view:
def ca_import(request):
    if request.method == 'POST' and 'import_test' in request.POST:
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            filehandle = request.FILES['file']
            dataset = ???
            result = ExportSpec().import_data(dataset, dry_run=False,
                                          raise_errors=True,
                                          user=request.user)

Can someone with understanding of this module help me complete the code for this generic example?

Or is there a generic example snipped somewhere on the net which I did not find using google?

EDIT:

Based on Alex answer I was able to find a working solution:

def ca_import(request):
    if request.method == 'POST' and 'import_test' in request.POST:
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            file = form.cleaned_data['file']
            data = bytes()
            for chunk in file.chunks():
                data += chunk
            dataset = XLS().create_dataset(data)
            result = ExportSpec().import_data(dataset, dry_run=False, raise_errors=True, user=request.user)

Answer 1

You should use the Format.create_dataset() method:

from import_export.formats.base_formats import XLS

def your_view():
    filehandle = form.cleaned_data['file']
    data = bytes()
        for chunk in import_file.chunks():
            data += chunk
    dataset = XLS().create_dataset(data)
    result = ExportSpec().import_data(...)