Events reference - Indian Market Trading Platform

Client → server

Event	Payload	Response
`ping`	none	`pong`

Connection query: userId (required for targeted emits).

Server → client (broadcast)

Event	Payload	When emitted
`{index}TickData`	`{ message, data: snapshot }`	Every ~1s per active index
`notification`	Alert object	Order/strategy notifications
`fetchFinancialSocketData`	Positions array	Position refresh
`fetchFinancialData`	trigger string	Tell clients to refetch positions
`fetchOrderData`	`indexName`	Order table refresh
`fetchScheduleOrderData`	`indexName`	Schedule table refresh
`fetchIndexSettingData`	none	Settings changed globally
`pong`	none	Heartbeat reply

{index} is lowercase index key, e.g. niftyTickData.

Server → client (targeted)

Event	Payload	When emitted
`updateUserSettingData`	User document	User profile/pageAccess changed

Sent only to socket ids mapped to that userId.

Internal-only (not on wire)

Emitter event	Handler
`{index}TickData` on `marketDataEmitter`	Updates `latestDataMap`
`resetFirstCandleEndTime`	Market session reset
`indexRecurringSettingUpdated`	Triggers settings refresh

Frontend subscribers

See Frontend event handlers.