add an id command

cli/cmd.go

@@ -59,12 +59,13 @@ func reqContext(cctx *cli.Context) context.Context {
 }
 
 var Commands = []*cli.Command{
-	clientCmd,
 	chainCmd,
+	clientCmd,
+	idCmd,
+	minerCmd,
+	mpoolCmd,
 	netCmd,
 	versionCmd,
-	mpoolCmd,
-	minerCmd,
 	walletCmd,
 	createMinerCmd,
 }

cli/id.go

@@ -0,0 +1,28 @@
+package cli
+
+import (
+	"fmt"
+
+	"gopkg.in/urfave/cli.v2"
+)
+
+var idCmd = &cli.Command{
+	Name:  "id",
+	Usage: "Get node identity",
+	Action: func(cctx *cli.Context) error {
+		api, err := getAPI(cctx)
+		if err != nil {
+			return err
+		}
+
+		ctx := reqContext(cctx)
+
+		pid, err := api.ID(ctx)
+		if err != nil {
+			return err
+		}
+
+		fmt.Println(pid)
+		return nil
+	},
+}