Package: optionchain-stream
Option Chain StreamLive streaming option chain for equity derivatives usingKite connect Websocket.This package usesRedisas storage backend. Here Redis is used to store real time streaming websocket data and instruments detail i.e all option strike details for contracts. Combination of these data structure are used to create real-time option chain stream for any given instrument.Installationpip install optionchain_streamRequest parametersFieldTypeDetailapi_keystringKite connect API keysecret_keystringKite connect API secretrequest_tokenstringKite connect one-time token obtained after thelogin flowaccess_tokenstringThe authentication token obtained post thelogin flowusing request_token and secret_keyoption_symbolstringSymbol of the instrument(eg: NIFTY, SBIN, ONGC, etc)option_expiry_datestringOption expiry date in yyyy-mm-dd format(eg: '2021-02-25', '2021-04-29')underlyingbooleanAdd NSE-EQ underlying stock in option stream for True inputUsagefrom optionchain_stream import OptionChain
OptionStream = OptionChain("option_symbol", "option_expiry_date in yyyy-mm-dd format", "api_key",
                    "api_secret=None", "request_token=None", "access_token=None", underlying=False)

# You can directly pass access_token from previous active session 
Eg: OptionStream = OptionChain("ONGC", "2021-02-25", "your_api_key", access_token="XXXXXX")

# Generate new session by passing api_secret and request_token
Eg: OptionStream = OptionChain("ONGC", "2021-02-25", "your_api_key", api_secret="XXXXX",
                    request_token="XXXXXX")

# You can fetch underlying stock tick as well in option chain, by sending optional param `underlying=True`
Eg: OptionStream = OptionChain("ONGC", "2021-02-25", "your_api_key", access_token="XXXXXX", underlying=True)
                  Or
    OptionStream = OptionChain("ONGC", "2021-02-25", "your_api_key", api_secret="XXXXX",
                    request_token="XXXXXX", underlying=True)


# Sync master instrument data to DB(redis)     
# This sync is required only once daily at initial run             
OptionStream.sync_instruments()

# Stream option chain data in real-time
StreamData = OptionStream.create_option_chain()
for data in StreamData:
    print(data)ResponseResponses areJSON messages.1> Forunderlying=True, response contain underlying stock tick as well. Eg. foroption_symbol=ONGC, underlying isONGC EQ NSEcontract:....{'token': 633601, 'symbol': 'ONGC', 'last_price': 112.35, 'change': 0.4470272686633885},....,
{'token': 24268034, 'symbol': 'ONGC21FEB87PE', 'last_price': 1.5, 'volume': 61600, 'change': 0.0, 'oi': 400400},.....2> By default, option contracts are sent....., 'change': 54.09090909090908, 'oi': 7700},{'token': 24268034, 'symbol': 'ONGC21FEB87PE', 'last_price': 1.5, 'volume': 61600, 'change': 0.0, 'oi': 400400}, 
{'token': 24268290, 'symbol': 'ONGC21FEB88CE', 'last_price': 10.6, 'volume': 0, 'change': -12.033195020746897, 'oi': 15400}, {'token': 24268546, 'symbol': 
'ONGC21FEB88PE', 'last_price': 1.75, 'volume': 53900, 'change': 25.000000000000007, 'oi': 261800}, {'token': 24268802, 'symbol': 'ONGC21FEB89CE', 
'last_price':10.6, 'volume': 15400, 'change': -5.77777777777778, 'oi': 107800}, 
{'token': 24269058, 'symbol': 'ONGC21FEB89PE', 'last_price': 1.85, 'volume': 184800, 'change': -11.904761904761905, 'oi': 338800}, {'token': 24269314, 'symbol': 
'ONGC21FEB90CE', 'last_price': 10.0, 'volume': 654500, 'change': 2.5641025641025643, 'oi': 1632400}, {'token': 24269570, 'symbol': 'ONGC21FEB90PE', 'last_price': 
2.2, 'volume': 1925000, 'change': -2.2222222222222143, 'oi': 3326400}, {'token': 24269826, 'symbol': 'ONGC21FEB91CE', 'last_price': 9.3, 'volume': 15400, 
'change': -6.999999999999993, 'oi': 308000}, {'token': 24270082, 'symbol': 'ONGC21FEB91PE', 'last_price': 2.55, 'volume': 61600, 'change': -5.555555555555569, 
'oi': 323400}, {'token': 24270338, 'symbol': 'ONGC21FEB92CE', 'last_price': 8.7, 'volume': 30800,....Response attributesFieldTypeDetailtokenstringinstrument_token for requested tradingsymbolsymbolstringtradingsymbol of the instrumentlast_pricefloatCurrent market pricevolumeintVolume traded for the daychangefloatPrice change % w.r.t previous day close/LTPoifloatOpen Interest for a options contract