feat: impl grpcweb in frontend

api/v2/v2.go

@@ -8,9 +8,11 @@ import (
 	"github.com/boojack/slash/server/profile"
 	"github.com/boojack/slash/store"
 	grpcRuntime "github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/improbable-eng/grpc-web/go/grpcweb"
 	"github.com/labstack/echo/v4"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/reflection"
 )
 
 type APIV2Service struct {
@@ -33,6 +35,7 @@ func NewAPIV2Service(secret string, profile *profile.Profile, store *store.Store
 	apiv2pb.RegisterUserServiceServer(grpcServer, NewUserService(secret, store))
 	apiv2pb.RegisterUserSettingServiceServer(grpcServer, NewUserSettingService(store))
 	apiv2pb.RegisterShortcutServiceServer(grpcServer, NewShortcutService(secret, store))
+	reflection.Register(grpcServer)
 
 	return &APIV2Service{
 		Secret:         secret,
@@ -75,5 +78,15 @@ func (s *APIV2Service) RegisterGateway(ctx context.Context, e *echo.Echo) error
 	}
 	e.Any("/api/v2/*", echo.WrapHandler(gwMux))
 
+	// GRPC web proxy.
+	options := []grpcweb.Option{
+		grpcweb.WithCorsForRegisteredEndpointsOnly(false),
+		grpcweb.WithOriginFunc(func(origin string) bool {
+			return true
+		}),
+	}
+	wrappedGrpc := grpcweb.WrapServer(s.grpcServer, options...)
+	e.Any("/slash.api.v2.*", echo.WrapHandler(wrappedGrpc))
+
 	return nil
 }