Method PeerEvents

node/api.go:67–101

PeerEvents creates an RPC subscription which receives peer events from the node's p2p.Server

(ctx context.Context)

// PeerEvents creates an RPC subscription which receives peer events from the
// node's p2p.Server
func (api *PrivateAdminAPI) PeerEvents(ctx context.Context) (*rpc.Subscription, error) {
	// Make sure the server is running, fail otherwise
	server := api.node.Server()
	if server == nil {
		return nil, ErrNodeStopped
	}

	// Create the subscription
	notifier, supported := rpc.NotifierFromContext(ctx)
	if !supported {
		return nil, rpc.ErrNotificationsUnsupported
	}
	rpcSub := notifier.CreateSubscription()

	go func() {
		events := make(chan *p2p.PeerEvent)
		sub := server.SubscribeEvents(events)
		defer sub.Unsubscribe()

		for {
			select {
			case event := <-events:
				notifier.Notify(rpcSub.ID, event)
			case <-sub.Err():
				return
			case <-rpcSub.Err():
				return
			case <-notifier.Closed():
				return
			}
		}
	}()

	return rpcSub, nil
}

// StartRPC starts the HTTP RPC API server.
func (api *PrivateAdminAPI) StartRPC(host *string, port *int, cors *string, apis *string, vhosts *string) (bool, error) {