openfeed 1.0.7

Barchart Openfeed Example Client for Python

Openfeed SDK for Python

This SDK encapuslates the openfeed proto objects and faciliates client connections to openfeed servers.

Installation

pip install openfeed

Example Usage

import openfeed

# new client with credentials
of_client = openfeed.OpenfeedClient("username", "password")

# optional state handlers
of_client.on_error = lambda x: print("Error:", x)
of_client.on_connected = lambda x: print("Connected")
of_client.on_disconnected = lambda x: print("Disconnected")

# sub to markets by symbol
def on_message(msg):
    print("Market Data: ", msg)

of_client.add_symbol_subscription("AAPL", callback=on_message)

# sub to markets by exchange
of_client.add_exchange_subscription("NYSE", callback=on_message)

of_client.start()

Expected Output

of-client: Connected
of-client: Market Data:  subscriptionResponse
of-client: Market Data:  marketSnapshot
of-client: Market Data:  marketUpdate
of-client: Market Data:  marketUpdate

Known Issues

• https://github.com/protocolbuffers/protobuf/issues/1491