Error on LIVE, not on DEMO: KeyError: 'cst' #41

alienoia · 2017-02-23T09:56:07Z

Dear @femtotrader,
DEMO version is ok. When I change from DEMO to LIVE (username, password etc... are changed), I get the folloging error: KeyError: 'cst' (see below).

Any help?
Thank you in advance,
Gilberto

This is the error output:

KeyError                                  Traceback (most recent call last)
<ipython-input-10-de3f99b49acd> in <module>()
     74 
     75 if __name__ == '__main__':
---> 76     main()

<ipython-input-10-de3f99b49acd> in main()
     34 
     35     ig_stream_service = IGStreamService(ig_service)
---> 36     ig_session = ig_stream_service.create_session()
     37     accountId = ig_session[u'accounts'][0][u'accountId']
     38     ig_stream_service.connect(accountId)

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/stream.py in create_session(self)
     19 
     20     def create_session(self):
---> 21         ig_session = self.ig_service.create_session()
     22         self.ig_session = ig_session
     23         return ig_session

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in create_session(self, session)
    942         action = 'create'
    943         # this is the first create (BASIC_HEADERS)
--> 944         response = self._req(action, endpoint, params, session)
    945         data = self.parse_response(response.text)
    946         self.ig_session = data # store IG session

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in _req(self, action, endpoint, params, session)
    202         """Creates a CRUD request and returns response"""
    203         session = self._get_session(session)
--> 204         response = self.crud_session.req(action, endpoint, params, session)
    205         return response
    206 

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in req(self, action, endpoint, params, session)
    119             'delete': self.delete
    120         }
--> 121         return d_actions[action](endpoint, params, session)
    122 
    123     def _set_headers(self, response_headers, update_cst):

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in _create_first(self, endpoint, params, session)
     70                                 data=json.dumps(params),
     71                                 headers=self.HEADERS['BASIC'])
---> 72         self._set_headers(response.headers, True)
     73         self.create = self._create_logged_in
     74         return response

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in _set_headers(self, response_headers, update_cst)
    124         """Sets headers"""
    125         if update_cst:
--> 126             self.CLIENT_TOKEN = response_headers['CST']
    127 
    128         if 'X-SECURITY-TOKEN' in response_headers:

/Users/gb/anaconda/lib/python3.5/site-packages/requests/structures.py in __getitem__(self, key)
     52 
     53     def __getitem__(self, key):
---> 54         return self._store[key.lower()][1]
     55 
     56     def __delitem__(self, key):

KeyError: 'cst'

This is the main code (modules and credentials account imports are omitted):

#!/usr/bin/env python
#-*- coding:utf-8 -*-

"""
IG Markets Stream API sample with Python
2015 FemtoTrader
"""

import time
import sys
import traceback
import logging

from trading_ig import (IGService, IGStreamService)
#from trading_ig.config import config
from trading_ig.lightstreamer import Subscription


# A simple function acting as a Subscription listener
def on_prices_update(item_update):
    # print("price: %s " % item_update)
    print("{stock_name:<19}: Time {UPDATE_TIME:<8} - "
          "Bid {BID:>5} - Ask {OFFER:>5}".format(stock_name=item_update["name"], **item_update["values"]))

def on_account_update(balance_update):
    print("balance: %s " % balance_update)

def main():
    logging.basicConfig(level=logging.INFO)
    # logging.basicConfig(level=logging.DEBUG)

    #ig_service = IGService(config.username, config.password, config.api_key, config.acc_type)
    ig_service = IGService(username, password, api_key, acc_type)

    ig_stream_service = IGStreamService(ig_service)
    ig_session = ig_stream_service.create_session()
    accountId = ig_session[u'accounts'][0][u'accountId']
    ig_stream_service.connect(accountId)

    # Making a new Subscription in MERGE mode
    subcription_prices = Subscription(
        mode="MERGE",
        items=['L1:CS.D.GBPUSD.CFD.IP', 'L1:CS.D.USDJPY.CFD.IP'],
        fields=["UPDATE_TIME", "BID", "OFFER", "CHANGE", "MARKET_STATE"],
        )
        #adapter="QUOTE_ADAPTER")


    # Adding the "on_price_update" function to Subscription
    subcription_prices.addlistener(on_prices_update)

    # Registering the Subscription
    sub_key_prices = ig_stream_service.ls_client.subscribe(subcription_prices)


    # Making an other Subscription in MERGE mode
    subscription_account = Subscription(
        mode="MERGE",
        items='ACCOUNT:'+accountId,
        fields=["AVAILABLE_CASH"],
        )
    #    #adapter="QUOTE_ADAPTER")

    # Adding the "on_balance_update" function to Subscription
    subscription_account.addlistener(on_account_update)

    # Registering the Subscription
    sub_key_account = ig_stream_service.ls_client.subscribe(subscription_account)

    input("{0:-^80}\n".format("HIT CR TO UNSUBSCRIBE AND DISCONNECT FROM \
    LIGHTSTREAMER"))

    # Disconnecting
    ig_stream_service.disconnect()

if __name__ == '__main__':
    main()

The text was updated successfully, but these errors were encountered:

femtotrader · 2017-02-23T10:11:34Z

it looks like an issue between lower case / upper case.

alienoia · 2017-02-23T10:15:36Z

If I set the DEMO account credentials, all is ok. If I change to LIVE account credentials I get the error.

femtotrader · 2017-02-23T10:21:05Z

I didn't test with LIVE... so you should fix it and submit a PR.

I think you should simply change
https://github.com/ig-python/ig-markets-api-python-library/blob/master/trading_ig/rest.py#L129
from:

        self.CLIENT_TOKEN = response_headers['CST']

to

        self.CLIENT_TOKEN = response_headers['cst']

Please test it and say me if it fix this issue.

alienoia · 2017-02-23T10:36:10Z

I changed the code but It doesn't fix the issue.

/Users/gb/anaconda/lib/python3.5/site-packages/trading_ig/rest.py in _set_headers(self, response_headers, update_cst)
    125         if update_cst:
    126             #self.CLIENT_TOKEN = response_headers['CST']
--> 127             self.CLIENT_TOKEN = response_headers['cst']
    128 
    129         if 'X-SECURITY-TOKEN' in response_headers:

/Users/gb/anaconda/lib/python3.5/site-packages/requests/structures.py in __getitem__(self, key)
     52 
     53     def __getitem__(self, key):
---> 54         return self._store[key.lower()][1]
     55 
     56     def __delitem__(self, key):

KeyError: 'cst'

alienoia · 2017-02-23T10:39:20Z

I tried line by line:

ig_session = ig_stream_service.create_session() # This generates the error

...

from trading_ig import IGService, IGStreamService
from trading_ig.lightstreamer import Subscription
import trading_ig.compat as compat

ig_service = IGService(username, password, api_key, acc_type)
ig_stream_service = IGStreamService(ig_service)
ig_session = ig_stream_service.create_session() # This generates the error

femtotrader · 2017-02-23T10:57:11Z

I can only "blindly" help as I don't use anymore IG live (for now).
But maybe you should print response_headers

    if update_cst:
        print(response_headers)
        self.CLIENT_TOKEN = response_headers['CST']

to see what is going on

alienoia · 2017-02-23T11:11:01Z

In LIVE, I get:

{'Connection': 'close', 'Vary': 'X-IG-API-KEY,Accept-Encoding', 'Content-Encoding': 'gzip', 'Access-Control-Allow-Headers': 'Content-Type, X-IG-API-KEY, CST, X-SECURITY-TOKEN, VERSION, _method, Authorization, IG-ACCOUNT-ID', 'Date': 'Thu, 23 Feb 2017 11:09:52 GMT', 'Access-Control-Expose-Headers': 'CST, X-SECURITY-TOKEN', 'Access-Control-Allow-Methods': 'POST, GET, PUT, DELETE, OPTIONS, GET, POST, PUT, DELETE', 'Server': 'Apache', 'Access-Control-Max-Age': '3600', 'Access-Control-Allow-Origin': '*', 'Content-Length': '62', 'Content-Type': 'application/json', 'X-STATE': 'live', 'P3P': 'CP="ALL DSP LAW OTPa OUR IND UNI CNT"', 'Cache-Control': 'no-cache, no-store'}

If I change from LIVE to DEMO, I get (some data omitted "..." ):

{'X-REQUEST-ID': '8...7', 'Server': 'Apache', 'Content-Length': '330', 'P3P': 'CP="ALL DSP LAW OTPa OUR IND UNI CNT"', 'Connection': 'keep-alive', 'Date': 'Thu, 23 Feb 2017 11:13:53 GMT', 'X-STATE': 'live', 'Cache-Control': 'no-cache, no-store', 'Access-Control-Expose-Headers': 'CST, X-SECURITY-TOKEN', 'Access-Control-Max-Age': '3600', 'Pragma': 'no-cache', 'CST': '8...1', 'Access-Control-Allow-Headers': 'Content-Type, X-IG-API-KEY, CST, X-SECURITY-TOKEN, VERSION, _method, Authorization, IG-ACCOUNT-ID', 'Access-Control-Allow-Origin': '*', 'X-SECURITY-TOKEN': '3...3', 'Access-Control-Allow-Methods': 'POST, GET, PUT, DELETE, OPTIONS, GET, POST, PUT, DELETE', 'Content-Type': 'application/json', 'Content-Encoding': 'gzip', 'Expires': '0', 'Vary': 'X-IG-API-KEY,Accept-Encoding'}

alienoia · 2017-02-23T11:41:35Z

I found the error!
It was an API key problem, not your code.
I am very sorry for wasted your time.

femtotrader · 2017-02-23T12:39:46Z

A better error message is probably required

ahmedhindi · 2017-06-11T16:03:33Z

@alienoia how did you solve the problem?

… (#60) * When a session is created, raise exception if HTTP error response (#41) * simplify if statement.

alienoia closed this as completed Feb 23, 2017

femtotrader pushed a commit that referenced this issue Sep 18, 2017

When a session is created, raise exception if HTTP error response (#41)…

734ed11

… (#60) * When a session is created, raise exception if HTTP error response (#41) * simplify if statement.

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Error on LIVE, not on DEMO: KeyError: 'cst' #41

Error on LIVE, not on DEMO: KeyError: 'cst' #41

alienoia commented Feb 23, 2017 •

edited by femtotrader

femtotrader commented Feb 23, 2017

alienoia commented Feb 23, 2017 •

edited

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alienoia commented Feb 23, 2017 •

edited

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alienoia commented Feb 23, 2017 •

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femtotrader commented Feb 23, 2017

ahmedhindi commented Jun 11, 2017

Error on LIVE, not on DEMO: KeyError: 'cst' #41

Error on LIVE, not on DEMO: KeyError: 'cst' #41

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alienoia commented Feb 23, 2017 • edited by femtotrader

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