SubscribeSnapshot

SubscribeSnapshot : Subscribe to Realtime Snapshots data, returns data snapshot as per Periodicity & Period values

Exchange	String value like NFO	Name of supported exchange. How to get list of supported exchanges you can find here
InstrumentIdentifier	String value of instrument identifier	How to get list of available instruments and identifiers you can find here
Periodicity	[“MINUTE”]/[“HOUR”]	String value of required periodicity.
Period	1,2,5,10,15,30 default = 1	Numerical value of required Period.
Unsubscribe	[true]/[false], default = [false]	Optional parameter. By default subscribes to Realtime data. If [true] instrumentidentfier is unsubscribed

Exchange, InstrumentIdentifier (Symbol), Periodicity, Period, LastTradeTime, Open, High, Low, Close, TradedQty, OpenInterest

LastTradeTime : This value is expressed as no. of seconds since Epoch time (i.e. 1st January 1970). Also known as Unix Time. Please Visit https://www.epochconverter.com/ to get formulae to convert human readable time to Epoch and vice versa (scroll to end of their home page)

{
MessageType: "SubscribeSnapshot",
Exchange: "NFO",
InstrumentIdentifier: "FUTIDX_BANKNIFTY_24NOV2016_XX_0",
Periodicity: "MINUTE",
Period: 1
};
var message = JSON.stringify(request);
websocket.send(message);

{
"Exchange":"NFO",
"InstrumentIdentifier":"FUTIDX_BANKNIFTY_24NOV2016_XX_0",
"Periodicity":"MINUTE",
"Period":1,
"LastTradeTime":1508835184,
"TradedQty":0,
"OpenInterest":0,
"Open":20162.0,
"High":20162.0,
"Low":20162.0,
"Close":20162.0,
"MessageType":"RealtimeSnapshotResult"
}