I've done something similar using Haskell: https://github.com/agrafix/yahoo-finance-conduit https://github.com/agrafix/yahoo-finance-conduit I tried to do this

I've done something similar using Haskell: https://github.com/agrafix/yahoo-finance-conduit https://github.com/agrafix/yahoo-finance-conduit I tried to do this using a streaming approach (conduits), but the data is delayed and there is no real streaming api.