Our system listens to every tick received and at end of the minute we generate a candle and store it in the database. This happens for all the instruments that are traded on the day. Since it involves a database write, one can't say that at the exact end of the minute a candle will be available there can be 10 to 15 seconds delay.

I dont see historical API fetching us the correct data (even if we know how much delay can result in correct data, we should be good too). And websockets not helping too due to volatility and fast changing prices. Do you see any workaround?

I was going through the jsclient of kiteconnect, and I find two properties which doesnt match with the document and therefore wanted to check if these properties are live and working .What is LastTradeQuantity->does it work/return data as given in the document . Also I assume Total refers to 'orders' in other libraries.