truedata-ws 0.1.17

Truedata's Official Python Package

This is the official python (websocket) repo for TrueData.

What have we covered so far ?

• Websocket APIs
  • Live data
  • Historical data

How do you use it ?

For beginners

• Installing from PyPi

python3.7 -m pip install truedata

• Connecting

from truedata_ws.websocket.TD import TD
td_app = TD('<enter_your_login_id>', '<enter_your_password>')

• Starting live data
  For Single Symbols

req_id = td_app.start_live_data('<enter_symbol>')
# Example:
# req_id = start_live_data('CRUDEOIL-I')
# This returns an integer that can be used later to reference the data

For Multiple symbols

req_ids = td_app.start_live_data(['<symbol_1>', '<symbol_2>', '<symbol_3>', ...])
# Example:
# req_ids = td_app.start_live_data(['CRUDEOIL-I', 'BANKNIFTY-I', 'RELIANCE', 'ITC'])
# This returns a list that can be used to reference data later

• Sample code for testing market data (single symbol)

from copy import deepcopy

live_data_obj = deepcopy(td_app.live_data[req_id])

while True:
    if not td_app.live_data[req_id] == live_data_obj:
        print(td_app.live_data[req_id])
        live_data_obj = deepcopy(td_app.live_data[req_id])

• Sample code for testing market data (multiple symbols)

from copy import deepcopy

live_data_objs = {}
for req_id in req_ids:
    live_data_objs[req_id] = deepcopy(td_app.live_data[req_id])
    print(live_data_objs[req_id])

while True:
    for req_id in req_ids:
        if not td_app.live_data[req_id] == live_data_objs[req_id]:
            print(td_app.live_data[req_id])
            live_data_objs[req_id] = deepcopy(td_app.live_data[req_id])

What is the plan going forward ?

• Ease of contract handling
• Improved error handling