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package core
import (
ctypes "github.com/tendermint/tendermint/rpc/core/types"
"github.com/tendermint/tendermint/rpc/types"
"github.com/tendermint/tendermint/types"
)
func Subscribe(wsCtx rpctypes.WSRPCContext, event string) (*ctypes.ResultSubscribe, error) {
log.Notice("Subscribe to event", "remote", wsCtx.GetRemoteAddr(), "event", event)
wsCtx.GetEventSwitch().AddListenerForEvent(wsCtx.GetRemoteAddr(), event, func(msg types.EventData) {
// NOTE: EventSwitch callbacks must be nonblocking
// NOTE: RPCResponses of subscribed events have id suffix "#event"
wsCtx.TryWriteRPCResponse(rpctypes.NewRPCResponse(wsCtx.Request.ID+"#event", ctypes.ResultEvent{event, msg}, ""))
})
return &ctypes.ResultSubscribe{}, nil
}
func Unsubscribe(wsCtx rpctypes.WSRPCContext, event string) (*ctypes.ResultUnsubscribe, error) {
log.Notice("Unsubscribe to event", "remote", wsCtx.GetRemoteAddr(), "event", event)
wsCtx.GetEventSwitch().AddListenerForEvent(wsCtx.GetRemoteAddr(), event, func(msg types.EventData) {
// NOTE: EventSwitch callbacks must be nonblocking
// NOTE: RPCResponses of subscribed events have id suffix "#event"
wsCtx.TryWriteRPCResponse(rpctypes.NewRPCResponse(wsCtx.Request.ID+"#event", ctypes.ResultEvent{event, msg}, ""))
})
return &ctypes.ResultUnsubscribe{}, nil
}