TD Ameritrade API with Neo4j: Cypher to load daily price history for each Instrument node

TDA_Cypher_Load_Daily_Price_History_for_all_Instruments

//Load Daily Price History for every Instrument
CALL apoc.periodic.iterate("MATCH (i:Instrument) RETURN i.symbol as Symbol"
, "CALL apoc.load.jsonParams('https://api.tdameritrade.com/v1/marketdata/'+ Symbol + '/pricehistory?apikey=' + 'YOUR_CONSUMER_KEY_GOES_HERE' + '&frequencyType=daily&periodType=year&frequency=1&endDate=' + timestamp() + '&startDate=' + dateTime('2022-04-01').epochMillis  , {Authorization:" + '\''+$token[0].access_token+'\'' + "} ,null) 
  YIELD value 
  UNWIND value.candles AS cndl
  FOREACH (candle in cndl | MERGE (s:Price {ticker: value.symbol,timestamp: datetime.fromepochmillis(candle.datetime) }) 
    ON CREATE SET  
      s.open = candle.open, 
      s.close = candle.close, 
      s.volume = candle.volume, 
      s.high = candle.high, 
      s.low = candle.low, 
      s.timestamp = Date(datetime.fromepochmillis(candle.datetime)) 
  )"
,{batchSize:10000, parallel:false})