diff --git a/backend/pkg/analytics/builder.go b/backend/pkg/analytics/builder.go
index e2a5c833b..bcc7dc727 100644
--- a/backend/pkg/analytics/builder.go
+++ b/backend/pkg/analytics/builder.go
@@ -1,6 +1,7 @@
 package analytics
 
 import (
+	"github.com/go-playground/validator/v10"
 	"openreplay/backend/pkg/analytics/charts"
 	"time"
 
@@ -31,11 +32,12 @@ func NewServiceBuilder(log logger.Logger, cfg *analytics.Config, webMetrics web.
 	if err != nil {
 		return nil, err
 	}
+	reqValidator := validator.New()
 	cardsService, err := cards.New(log, pgconn)
 	if err != nil {
 		return nil, err
 	}
-	cardsHandlers, err := cards.NewHandlers(log, cfg, responser, cardsService)
+	cardsHandlers, err := cards.NewHandlers(log, cfg, responser, cardsService, reqValidator)
 	if err != nil {
 		return nil, err
 	}
@@ -43,7 +45,7 @@ func NewServiceBuilder(log logger.Logger, cfg *analytics.Config, webMetrics web.
 	if err != nil {
 		return nil, err
 	}
-	dashboardsHandlers, err := dashboards.NewHandlers(log, cfg, responser, dashboardsService)
+	dashboardsHandlers, err := dashboards.NewHandlers(log, cfg, responser, dashboardsService, reqValidator)
 	if err != nil {
 		return nil, err
 	}
@@ -51,7 +53,7 @@ func NewServiceBuilder(log logger.Logger, cfg *analytics.Config, webMetrics web.
 	if err != nil {
 		return nil, err
 	}
-	chartsHandlers, err := charts.NewHandlers(log, cfg, responser, chartsService)
+	chartsHandlers, err := charts.NewHandlers(log, cfg, responser, chartsService, reqValidator)
 	if err != nil {
 		return nil, err
 	}
diff --git a/backend/pkg/analytics/cards/handlers.go b/backend/pkg/analytics/cards/handlers.go
index 13161b8b5..f0cf16d02 100644
--- a/backend/pkg/analytics/cards/handlers.go
+++ b/backend/pkg/analytics/cards/handlers.go
@@ -36,6 +36,7 @@ type handlersImpl struct {
 	responser     *api.Responser
 	jsonSizeLimit int64
 	cards         Cards
+	validator     *validator.Validate
 }
 
 func (e *handlersImpl) GetAll() []*api.Description {
@@ -48,12 +49,13 @@ func (e *handlersImpl) GetAll() []*api.Description {
 	}
 }
 
-func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, cards Cards) (api.Handlers, error) {
+func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, cards Cards, validator *validator.Validate) (api.Handlers, error) {
 	return &handlersImpl{
 		log:           log,
 		responser:     responser,
 		jsonSizeLimit: cfg.JsonSizeLimit,
 		cards:         cards,
+		validator:     validator,
 	}, nil
 }
 
@@ -74,9 +76,7 @@ func (e *handlersImpl) createCard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	validate := validator.New()
-	err = validate.Struct(req)
-	if err != nil {
+	if err = e.validator.Struct(req); err != nil {
 		e.responser.ResponseWithError(e.log, r.Context(), w, http.StatusBadRequest, err, startTime, r.URL.Path, bodySize)
 		return
 	}
@@ -256,9 +256,7 @@ func (e *handlersImpl) updateCard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	validate := validator.New()
-	err = validate.Struct(req)
-	if err != nil {
+	if err = e.validator.Struct(req); err != nil {
 		e.responser.ResponseWithError(e.log, r.Context(), w, http.StatusBadRequest, err, startTime, r.URL.Path, bodySize)
 		return
 	}
diff --git a/backend/pkg/analytics/charts/handlers.go b/backend/pkg/analytics/charts/handlers.go
index d0d71dd7c..771732b43 100644
--- a/backend/pkg/analytics/charts/handlers.go
+++ b/backend/pkg/analytics/charts/handlers.go
@@ -36,6 +36,7 @@ type handlersImpl struct {
 	responser     *api.Responser
 	jsonSizeLimit int64
 	charts        Charts
+	validator     *validator.Validate
 }
 
 func (e *handlersImpl) GetAll() []*api.Description {
@@ -45,12 +46,13 @@ func (e *handlersImpl) GetAll() []*api.Description {
 	}
 }
 
-func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, charts Charts) (api.Handlers, error) {
+func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, charts Charts, validator *validator.Validate) (api.Handlers, error) {
 	return &handlersImpl{
 		log:           log,
 		responser:     responser,
 		jsonSizeLimit: cfg.JsonSizeLimit,
 		charts:        charts,
+		validator:     validator,
 	}, nil
 }
 
@@ -77,9 +79,7 @@ func (e *handlersImpl) getCardChartData(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
-	validate := validator.New()
-	err = validate.Struct(req)
-	if err != nil {
+	if err = e.validator.Struct(req); err != nil {
 		e.responser.ResponseWithError(e.log, r.Context(), w, http.StatusBadRequest, err, startTime, r.URL.Path, bodySize)
 		return
 	}
diff --git a/backend/pkg/analytics/dashboards/handlers.go b/backend/pkg/analytics/dashboards/handlers.go
index a37005d00..d81c75159 100644
--- a/backend/pkg/analytics/dashboards/handlers.go
+++ b/backend/pkg/analytics/dashboards/handlers.go
@@ -36,6 +36,7 @@ type handlersImpl struct {
 	responser     *api.Responser
 	jsonSizeLimit int64
 	dashboards    Dashboards
+	validator     *validator.Validate
 }
 
 func (e *handlersImpl) GetAll() []*api.Description {
@@ -50,12 +51,13 @@ func (e *handlersImpl) GetAll() []*api.Description {
 	}
 }
 
-func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, dashboards Dashboards) (api.Handlers, error) {
+func NewHandlers(log logger.Logger, cfg *config.Config, responser *api.Responser, dashboards Dashboards, validator *validator.Validate) (api.Handlers, error) {
 	return &handlersImpl{
 		log:           log,
 		responser:     responser,
 		jsonSizeLimit: cfg.JsonSizeLimit,
 		dashboards:    dashboards,
+		validator:     validator,
 	}, nil
 }
 
@@ -76,9 +78,7 @@ func (e *handlersImpl) createDashboard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	validate := validator.New()
-	err = validate.Struct(req)
-	if err != nil {
+	if err = e.validator.Struct(req); err != nil {
 		e.responser.ResponseWithError(e.log, r.Context(), w, http.StatusBadRequest, err, startTime, r.URL.Path, bodySize)
 		return
 	}
@@ -279,9 +279,7 @@ func (e *handlersImpl) addCardToDashboard(w http.ResponseWriter, r *http.Request
 		return
 	}
 
-	validate := validator.New()
-	err = validate.Struct(req)
-	if err != nil {
+	if err = e.validator.Struct(req); err != nil {
 		e.responser.ResponseWithError(e.log, r.Context(), w, http.StatusBadRequest, err, startTime, r.URL.Path, bodySize)
 		return
 	}