status-go/metrics/node/node_info_expvar.go

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// +build metrics,!prometheus
package node
import (
"encoding/json"
"expvar"
"github.com/ethereum/go-ethereum/node"
"github.com/status-im/status-go/geth/log"
)
var (
nodeInfo = expvar.NewString("node_info")
nodePeers = expvar.NewString("node_peers")
)
func updateNodeInfo(node *node.Node) {
server := node.Server()
if server == nil {
log.Warn("Failed to get a server")
return
}
nodeInfo.Set(server.NodeInfo().ID)
}
func updateNodePeers(node *node.Node) {
server := node.Server()
if server == nil {
log.Warn("Failed to get a server")
return
}
val, _ := json.Marshal(getNodePeerRemoteAddresses(server))
nodePeers.Set(string(val))
}