unified gateway interfaces

api/payments/orchestrator/internal/server/internal/clients.go

@@ -85,6 +85,29 @@ func (i *Imp) initGatewayClient(cfg clientConfig) chainclient.Client {
 	return client
 }
 
+func (i *Imp) initPaymentGatewayClient(cfg clientConfig) chainclient.Client {
+	addr := cfg.address()
+	if addr == "" {
+		return nil
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), cfg.dialTimeout())
+	defer cancel()
+
+	client, err := chainclient.New(ctx, chainclient.Config{
+		Address:     addr,
+		DialTimeout: cfg.dialTimeout(),
+		CallTimeout: cfg.callTimeout(),
+		Insecure:    cfg.InsecureTransport,
+	})
+	if err != nil {
+		i.logger.Warn("failed to connect to payment gateway service", zap.String("address", addr), zap.Error(err))
+		return nil
+	}
+	i.logger.Info("connected to payment gateway service", zap.String("address", addr))
+	return client
+}
+
 func (i *Imp) initMntxClient(cfg clientConfig) mntxclient.Client {
 	addr := cfg.address()
 	if addr == "" {
@@ -138,6 +161,9 @@ func (i *Imp) closeClients() {
 	if i.gatewayClient != nil {
 		_ = i.gatewayClient.Close()
 	}
+	if i.paymentGatewayClient != nil {
+		_ = i.paymentGatewayClient.Close()
+	}
 	if i.mntxClient != nil {
 		_ = i.mntxClient.Close()
 	}