Requirement of additional roles or permissions to the access token for Market Data Feed V3

Developer API
1

Hi Team,

Is there a requirement to give additional roles or permissions to access the live Market Data Feed V3 ?

2

Hi @RISHIKUL_29593713

There are no additional roles/ permissions needed to access the live market data feed V3.
However, to access Depth 30 mode, you’ll have to be on the plus plan.

3

Hi Mohit,
Thank you for your response. I want to access d_30 data for a given option.
I have been struggling quite a lot with it to get d_30 information. Could you or someone from the team help review. Also, I did upgrade to the plus plan earlier this week.
Code is below
“”"

Import necessary modules
import asyncio
import json
import ssl
import upstox_client
import websockets
from google.protobuf.json_format import MessageToDict

import MarketDataFeedV3_pb2 as pb

def get_market_data_feed_authorize(api_version, configuration):
“”“Get authorization for market data feed.”“”
api_instance = upstox_client.WebsocketApi(
upstox_client.ApiClient(configuration))
api_response = api_instance.get_market_data_feed_authorize(api_version)
return api_response

def decode_protobuf(buffer):
“”“Decode protobuf message.”“”
feed_response = pb.FeedResponse()
feed_response.ParseFromString(buffer)
return feed_response

async def fetch_market_data():
“”“Fetch market data using WebSocket and print it.”“”

Create default SSL context
ssl_context = ssl.create_default_context()
ssl_context.check_hostname = False
ssl_context.verify_mode = ssl.CERT_NONE

Configure OAuth2 access token for authorization
configuration = upstox_client.Configuration()

api_version = '3.0'
configuration.access_token = ''

response = get_market_data_feed_authorize(
    api_version, configuration)

Connect to the WebSocket with SSL context
async with websockets.connect(response.data.authorized_redirect_uri, ssl=ssl_context) as websocket:
    print('Connection established')

    await asyncio.sleep(1) 


    data = {
        "guid": "hdjhfjkd-3452s2-df",
        "method": "sub",
        "data": {
            "mode": "full_d30",
            "instrumentKeys": ["NSE_FO|50917"]
        }
    }


    binary_data = json.dumps(data).encode('utf-8')
    await websocket.send(binary_data)


    while True:
        message = await websocket.recv()
        decoded_data = decode_protobuf(message)


        data_dict = MessageToDict(decoded_data)

        Print the dictionary representation
        print(json.dumps(data_dict))

asyncio.run(fetch_market_data())
“”"

4

Hi @RISHIKUL_29593713, It looks like you’re trying to use the V3 WebSocket for full_d30 but are fetching the authorization URL using the V2 method. Please use the correct method: get_market_data_feed_authorize_v3 instead of get_market_data_feed_authorize to obtain the appropriate authorization URL.

Also, ensure you’re using the latest version of the upstox-client that includes the newly added methods.

For further guidance, you can also refer to the sample WebSocket example.

Let us know if you continue to face any issues.

1 Like