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1

Regarding that your code does not work with StartWebSession[Visible->False] seems to be a bug. Here is my code that works with StartWebSession[Visible->False] but uses URLDownloadSubmit instead of WebExecute. If everything goes OK and the file is downloaded you get no message, if the file does not exist or something goes wrong you get a warning message....


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Here is an example to build on top of Twelve Data OHLCV candles. The advantage is that they offer real-time data throughout the trading session, that AV fails to deliver for some important stocks. TwelveDataTradingChart[symbol_, interval_, apikey_, opts___] := Module[{template, status, data, series}, template = StringTemplate["https://api.twelvedata....


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