feat(ioctl): bc version (#4005)

ioctl/cmd/bc/bc.go

@@ -10,14 +10,13 @@ import (
 	"strconv"
 
 	"github.com/grpc-ecosystem/go-grpc-middleware/util/metautils"
+	"github.com/iotexproject/iotex-proto/golang/iotexapi"
+	"github.com/iotexproject/iotex-proto/golang/iotextypes"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/proto"
 
-	"github.com/iotexproject/iotex-proto/golang/iotexapi"
-	"github.com/iotexproject/iotex-proto/golang/iotextypes"
-
 	"github.com/iotexproject/iotex-core/ioctl/config"
 	"github.com/iotexproject/iotex-core/ioctl/output"
 	"github.com/iotexproject/iotex-core/ioctl/util"
@@ -51,6 +50,7 @@ func init() {
 	BCCmd.AddCommand(_bcBucketListCmd)
 	BCCmd.AddCommand(_bcBucketCmd)
 	BCCmd.AddCommand(_bcDelegateCmd)
+	BCCmd.AddCommand(_bcVersionCmd)
 	BCCmd.PersistentFlags().StringVar(&config.ReadConfig.Endpoint, "endpoint",
 		config.ReadConfig.Endpoint, config.TranslateInLang(_flagEndpointUsages, config.UILanguage))
 	BCCmd.PersistentFlags().BoolVar(&config.Insecure, "insecure", config.Insecure,

ioctl/cmd/bc/bcversion.go

@@ -0,0 +1,65 @@
+package bc
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/grpc-ecosystem/go-grpc-middleware/util/metautils"
+	"github.com/iotexproject/iotex-proto/golang/iotexapi"
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc/status"
+
+	"github.com/iotexproject/iotex-core/ioctl/config"
+	"github.com/iotexproject/iotex-core/ioctl/output"
+	"github.com/iotexproject/iotex-core/ioctl/util"
+)
+
+var versionCmdShorts = map[config.Language]string{
+	config.English: "get blockchain version",
+	config.Chinese: "获取API节点版本信息",
+}
+
+var _bcVersionCmd = &cobra.Command{
+	Use:   "version",
+	Short: config.TranslateInLang(versionCmdShorts, config.UILanguage),
+	Args:  cobra.ExactArgs(0),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		out, err := bcVersion()
+		if err != nil {
+			return output.PrintError(err)
+		}
+		output.PrintResult(out)
+		return nil
+	},
+}
+
+func bcVersion() (string, error) {
+	conn, err := util.ConnectToEndpoint(config.ReadConfig.SecureConnect && !config.Insecure)
+	if err != nil {
+		return "", output.NewError(output.NetworkError, "failed to connect to endpoint", err)
+	}
+	defer conn.Close()
+
+	cli := iotexapi.NewAPIServiceClient(conn)
+	req := &iotexapi.GetServerMetaRequest{}
+	ctx := context.Background()
+
+	jwtMD, err := util.JwtAuth()
+	if err == nil {
+		ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
+	}
+
+	rsp, err := cli.GetServerMeta(ctx, req)
+	if err != nil {
+		sta, ok := status.FromError(err)
+		if ok {
+			return "", output.NewError(output.APIError, sta.Message(), nil)
+		}
+		return "", output.NewError(output.NetworkError, "failed to get version from server", err)
+	}
+
+	title := "API endpoint version"
+	detail := output.JSONString(rsp.ServerMeta)
+
+	return fmt.Sprintf("%s:\n%s\n", title, detail), nil
+}