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Hourly OHLCV in subscription and orders #367
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Otherwise, yes, there is always Python or your trusted E#$%l plugin. |
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Usually I first figure out whether something is possible in excel api, because for that you can fully utilise Bloomberg help desk. The c++ api capabilities should be a subset (at best equal) of excel api. And rblpapi capabilities is a strict subset of c++ api. Try helpdesk, or your Bloomberg sales rep. But for api based trade orders, I would interface directly with brokers that offer such capability - it’s their core business. Bloomberg is not a broker. |
I suggest we close this. CCing @johnlaing @armstrtw |
Fair point, and helpful hint. A quick recursive grep show examples using 'Equities' to be preceded by ticker and 'US' in about ten examples and spots but not in the README so I will address that there. |
README change has been implemented (thanks Dirk) and merged. While it is certainly outside the scope of the package I do not think Bloomberg offers any sort of trading functionality via the API. If they did, we would have to think very hard about whether there are enough legal disclaimers in the world to entice us to implement those features. |
i stand corrected on the front of altering orders with bloomberg api. turns out, if you are referring to EMSX, you can definitely do that via the c++ bloomberg api. ideas of how to do that, from some generic guide i found online: https://emsx-api-doc.readthedocs.io/en/latest/introduction.html . seems like you have to sign some paper work and at least get the EMSX tool working on your Excel first as a test. Then it's just a matter of coding up R wrappers for the c++ functionality. Bunch of example c++ code here https://github.com/tkim/emsx_api_repository , how to create orders, cancel orders etc. It'll be a lot of engineering effort to port these functionality into R. Probably your best bet is indeed python or C++. A question to the maintainers of Rblpapi, is the legal framework set up such that developers of this package have their backs covered in case of problems that arise from this package's usage. I mean someone could be game enough to code up these functionality, but probably will feel uneasy about whether we are covered if others use it and suffer losses due to bugs... |
having looked further, there are similarities between EMSX API functions with what Rblpapi currently supports. Eg, to create a new order, it's very similar to sending a bdp request (but instead of setting the field name you want to request, you set the ticker and amount you want to trade), https://github.com/tkim/emsx_api_repository/blob/master/EMSXFullSet_Python/CreateOrder.py Anyway, here's pointers to anyone interested. |
i would say, best course of action is, code up whatever subset of EMSX API functionality you need in python, into nice functions, then call these functions in R using reticulate. this way, you get the best of both worlds, ie data and trading algorithm developed in R, and the full spectrum of EMSX functionality available to you and easily customised in python, exposed to your R main program via reticulate. |
Is it possible to use
subscription
function to retrieve OHLCV data for many stocks every hour ? I suppose I can use get symbols after an hour, but I would like to use subscription instead.Bonus question : Is it possible to place / delete / modify orders via Bloomberg using R? I would like to write simple algo in hour, but if not possible, I will have to move to python.
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