fixed tron ip connection

api/gateway/tron/internal/service/gateway/tronclient/client.go

@@ -6,6 +6,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"math/big"
+	"net"
 	"net/url"
 	"strings"
 	"time"
@@ -27,7 +28,7 @@ type Client struct {
 }
 
 // NewClient creates a new TRON gRPC client connected to the given endpoint.
-func NewClient(grpcURL string, timeout time.Duration, authToken string) (*Client, error) {
+func NewClient(grpcURL string, timeout time.Duration, authToken string, forceIPv4 bool) (*Client, error) {
 	if grpcURL == "" {
 		return nil, merrors.InvalidArgument("tronclient: grpc url is required")
 	}
@@ -50,6 +51,9 @@ func NewClient(grpcURL string, timeout time.Duration, authToken string) (*Client
 	}
 
 	opts := []grpc.DialOption{transportCreds}
+	if forceIPv4 {
+		opts = append(opts, grpc.WithContextDialer(grpcForceIPv4Dialer))
+	}
 	if token := strings.TrimSpace(authToken); token != "" {
 		opts = append(opts,
 			grpc.WithUnaryInterceptor(grpcTokenUnaryInterceptor(token)),
@@ -67,6 +71,11 @@ func NewClient(grpcURL string, timeout time.Duration, authToken string) (*Client
 	}, nil
 }
 
+func grpcForceIPv4Dialer(ctx context.Context, address string) (net.Conn, error) {
+	var dialer net.Dialer
+	return dialer.DialContext(ctx, "tcp4", address)
+}
+
 func normalizeGRPCAddress(grpcURL string) (string, bool, error) {
 	target := strings.TrimSpace(grpcURL)
 	useTLS := false

api/gateway/tron/internal/service/gateway/tronclient/registry.go

@@ -40,6 +40,7 @@ func Prepare(ctx context.Context, logger mlogger.Logger, networks []shared.Netwo
 		name := network.Name.String()
 		grpcURL := strings.TrimSpace(network.GRPCUrl)
 		grpcToken := strings.TrimSpace(network.GRPCToken)
+		forceIPv4 := network.GRPCForceIPv4
 
 		if !network.Name.IsValid() {
 			continue
@@ -56,9 +57,10 @@ func Prepare(ctx context.Context, logger mlogger.Logger, networks []shared.Netwo
 		registry.logger.Info("Initializing TRON gRPC client",
 			zap.String("network", name),
 			zap.String("grpc_url", grpcURL),
+			zap.Bool("force_ipv4", forceIPv4),
 		)
 
-		client, err := NewClient(grpcURL, timeout, grpcToken)
+		client, err := NewClient(grpcURL, timeout, grpcToken, forceIPv4)
 		if err != nil {
 			registry.Close()
 			registry.logger.Error("Failed to initialize TRON gRPC client",