In websocket V3, vol key is not being presented at random tick. below are the ticks received from feed.
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 73.0, ‘high’: 73.0, ‘low’: 71.6, ‘close’: 71.6, ‘vol’: ‘7’, ‘ts’: ‘1739364300000’}
{‘interval’: ‘I1’, ‘open’: 72.4, ‘high’: 72.4, ‘low’: 72.4, ‘close’: 72.4, ‘ts’: ‘1739364480000’}
in last feed you can see that vol key is missing