add validation in client wrapper too

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

validator.go

@@ -3,18 +3,72 @@ package validator
 import (
 	"context"
 
+	"github.com/unistack-org/micro/v3/client"
 	"github.com/unistack-org/micro/v3/errors"
 	"github.com/unistack-org/micro/v3/server"
 )
 
-type Validator interface {
+type validator interface {
 	Validate() error
 }
 
+type wrapper struct {
+	client.Client
+}
+
+func NewClientWrapper() client.Wrapper {
+	return func(c client.Client) client.Client {
+		handler := &wrapper{
+			Client: c,
+		}
+		return handler
+	}
+}
+
+func NewClientCallWrapper() client.CallWrapper {
+	return func(fn client.CallFunc) client.CallFunc {
+		return func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
+			if v, ok := req.Body().(validator); ok {
+				if err := v.Validate(); err != nil {
+					return errors.BadRequest(req.Service(), "%v", err)
+				}
+			}
+			return fn(ctx, addr, req, rsp, opts)
+		}
+	}
+}
+
+func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
+	if v, ok := req.Body().(validator); ok {
+		if err := v.Validate(); err != nil {
+			return errors.BadRequest(req.Service(), "%v", err)
+		}
+	}
+	return w.Client.Call(ctx, req, rsp, opts...)
+}
+
+func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
+	if v, ok := req.Body().(validator); ok {
+		if err := v.Validate(); err != nil {
+			return nil, errors.BadRequest(req.Service(), "%v", err)
+		}
+	}
+	return w.Client.Stream(ctx, req, opts...)
+}
+
+func (w *wrapper) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
+	if v, ok := msg.Payload().(validator); ok {
+		if err := v.Validate(); err != nil {
+			return errors.BadRequest(msg.Topic(), "%v", err)
+		}
+	}
+	return w.Client.Publish(ctx, msg, opts...)
+}
+
 func NewServerHandlerWrapper() server.HandlerWrapper {
 	return func(fn server.HandlerFunc) server.HandlerFunc {
 		return func(ctx context.Context, req server.Request, rsp interface{}) error {
-			if v, ok := req.Body().(Validator); ok {
+			if v, ok := req.Body().(validator); ok {
 				if err := v.Validate(); err != nil {
 					return errors.BadRequest(req.Service(), "%v", err)
 				}
@@ -23,3 +77,16 @@ func NewServerHandlerWrapper() server.HandlerWrapper {
 		}
 	}
 }
+
+func NewServerSubscriberWrapper() server.SubscriberWrapper {
+	return func(fn server.SubscriberFunc) server.SubscriberFunc {
+		return func(ctx context.Context, msg server.Message) error {
+			if v, ok := msg.Payload().(validator); ok {
+				if err := v.Validate(); err != nil {
+					return errors.BadRequest(msg.Topic(), "%v", err)
+				}
+			}
+			return fn(ctx, msg)
+		}
+	}
+}