def parse_page(self, response):
# extract the json response from the tag: <script id="__NEXT_DATA__" type="application/json”>
jsonresponse = json.loads(response.css('#__NEXT_DATA__::text').extract()[0])
# access the historical data within the JSON object
nestedJson = jsonresponse['props']['initialState']['cryptocurrency']['ohlcvHistorical']
# retrieve the id of the crypto (a key value)
id = [str(k) for k in nestedJson.keys()][0]
# get the name of the respective crypto
name = nestedJson[id]['name']
# save the ticker symbol
ticker = jsonresponse['props']['initialState']['cryptocurrency']['ohlcvHistorical'][id]['symbol']
# accesss the historical data: e.g. Open, Close, High, Low, etc.
data = jsonresponse['props']['initialState']['cryptocurrency']['ohlcvHistorical'][id]['quotes']
for d in data:
loader = ItemLoader(item=CryptoItem())
loader.default_input_processor = MapCompose(str)
loader.default_ouput_processor = Join('')
for (field, path) in self.jmes_paths.items():
loader.add_value(field, SelectJmes(path)(d))
loader.add_value("Name", name)
loader.add_value("Ticker", ticker)
yield loader.load_item()
