ok.py

#
# VIEWS
#
class AccountsStatisticsDetail(TemplateView):
    template_name = 'grow/accountsstatistics.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        username = self.kwargs['username']
        if username:
            context['username'] = username
            context['account_stats'] = (
                AccountsStatistics.objects.filter(username__username=username))
            context['general_info'] = (
                AccountsStatistics.objects.select_related('username')
                                          .filter(username__username=username)
                                          .last())
        return context


class FollowersChartData(APIView):
    authentication_classes = []
    permission_classes = []

    def get(self, request, format=None):
        # I need to load do this query:
        # -> AccountsStatistics.objects.filter(username__username=username))
        # username is undefined at this moment
        labels = [
            "28/05", "29/05", "30/05", "31/05", "01/06",
            "02/06", "03/06", "04/06", "05/06", "06/06",
            "07/06"]
        default_items = [2500, 1510, 1527, 1555, 1690, 1750,
                         1801, 1870, 1960, 1953, 1930]
        data = {
            "labels": labels,
            "default": default_items,
        }

        return Response(data)
#
# template
#
<script>
{% block jquery %}
var endpoint = '/api/chart/data'

jQuery.ajax({
    method: "GET",
    url: endpoint,
    success: function(data) {
        labels = data.labels
        defaultData = data.default
    },
    error: function(error_data) {
        console.log("error")
        console.log(error_data)
    }
})

{% endblock %}
</script>