Makes flask-restful json API unicode

unicode-api.py

# -*- coding: utf-8 -*-
from flask_restful import Api, output_json
import json
import datetime


class DateTimeJSONEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj, datetime.datetime):
            return obj.isoformat()
        else:
            return super(DateTimeJSONEncoder, self).default(obj)


class UnicodeApi(Api):
    def __init__(self, *args, **kwargs):
        super(UnicodeApi, self).__init__(*args, **kwargs)
        self.app.config['RESTFUL_JSON'] = {
            'ensure_ascii': False,
            'cls': DateTimeJSONEncoder,
        }
        self.representations = {
            'application/json; charset=utf-8': output_json,
        }