diff --git a/backend/api/app/app.go b/backend/api/app/app.go
index fef9514..1f15840 100644
--- a/backend/api/app/app.go
+++ b/backend/api/app/app.go
@@ -14,4 +14,13 @@ type Application interface {
 	AddNote(ctx context.Context, title, content string) (domain.Note, error)
 	UpdateNote(ctx context.Context, noteUUID uuid.UUID, title, content string) (domain.Note, error)
 	DeleteNote(ctx context.Context, noteUUID uuid.UUID) error
+
+
+// New methods added
+MarkNote(ctx context.Context, noteUUID uuid.UUID) error
+UnarchiveNote(ctx context.Context, noteUUID uuid.UUID) error
+
+	
 }
+
+
diff --git a/backend/api/router/note/note.go b/backend/api/router/note/note.go
index 06de66e..22a1075 100644
--- a/backend/api/router/note/note.go
+++ b/backend/api/router/note/note.go
@@ -246,3 +246,114 @@ func GetNoteHandler(w http.ResponseWriter, r *http.Request) {
 		panic(err.Error())
 	}
 }
+
+
+
+
+
+
+
+
+
+
+// MarkNoteHandler handles marking a note as a favorite.
+func MarkNoteHandler(w http.ResponseWriter, r *http.Request) {
+    noteUUIDString := chi.URLParam(r, "noteUUID")
+    slog.Info("Note uuid from request", "noteUUID", noteUUIDString)
+    noteUUID, err := uuid.Parse(noteUUIDString)
+    if err != nil {
+        render.Status(r, 422)
+        render.JSON(w, r, map[string]string{"msg": "Invalid note uuid"})
+        return
+    }
+
+    application := r.Context().Value("app").(app.Application)
+    authUserUUID := r.Context().Value("authUserUUID").(uuid.UUID)
+
+    ctx := context.Background()
+    ctx = context.WithValue(ctx, "auth", a.Auth{UserUUID: authUserUUID})
+
+    // Assuming you have a method to mark a note as a favorite in your app.Application interface
+    err = application.MarkNote(ctx, noteUUID)
+
+    if err != nil {
+        slog.Info("Unable to mark note as favorite", "error", err.Error())
+        handleNoteUpdateError(w, r, err)
+        return
+    }
+
+    render.Status(r, 200)
+    render.JSON(w, r, map[string]string{"msg": "Note marked as favorite successfully"})
+}
+
+
+
+// UnarchiveNoteHandler handles unarchiving a note.
+func UnarchiveNoteHandler(w http.ResponseWriter, r *http.Request) {
+    noteUUIDString := chi.URLParam(r, "noteUUID")
+    slog.Info("Note uuid from request", "noteUUID", noteUUIDString)
+    noteUUID, err := uuid.Parse(noteUUIDString)
+    if err != nil {
+        render.Status(r, 422)
+        render.JSON(w, r, map[string]string{"msg": "Invalid note uuid"})
+        return
+    }
+
+    application := r.Context().Value("app").(app.Application)
+    authUserUUID := r.Context().Value("authUserUUID").(uuid.UUID)
+
+    ctx := context.Background()
+    ctx = context.WithValue(ctx, "auth", a.Auth{UserUUID: authUserUUID})
+
+    // Assuming you have a method to unarchive a note in your app.Application interface
+    err = application.UnarchiveNote(ctx, noteUUID)
+
+    if err != nil {
+        slog.Info("Unable to unarchive note", "error", err.Error())
+        handleNoteUpdateError(w, r, err)
+        return
+    }
+
+    render.Status(r, 200)
+    render.JSON(w, r, map[string]string{"msg": "Note unarchived successfully"})
+}
+
+
+
+
+
+// handleNoteUpdateError handles the error response for note updates.
+func handleNoteUpdateError(w http.ResponseWriter, r *http.Request, err error) {
+    slog.Error("Note update error", "error", err.Error())
+
+    var authError *a.AuthenticationError
+    var authorizationError *a.AuthorizationError
+    var notFoundError *a.EntityNotFoundError
+
+    switch {
+    case errors.As(err, &authError):
+        render.Status(r, 401)
+        render.JSON(w, r, map[string]string{"msg": authError.Message})
+    case errors.As(err, &authorizationError):
+        render.Status(r, 403)
+        render.JSON(w, r, map[string]string{"msg": "Not allowed"})
+    case errors.As(err, &notFoundError):
+        render.Status(r, 404)
+        render.JSON(w, r, map[string]string{"msg": notFoundError.Message})
+    default:
+        render.Status(r, 400)
+        render.JSON(w, r, map[string]string{"msg": err.Error()})
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/backend/api/router/note/note_test.go b/backend/api/router/note/note_test.go
index d1d4280..8119698 100644
--- a/backend/api/router/note/note_test.go
+++ b/backend/api/router/note/note_test.go
@@ -23,6 +23,11 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+
+
+
+
+
 func TestAddNoteHandler(t *testing.T) {
 	var mockApplication mock.MockApplication
 	var mockNotequeryService mock.MockNoteQueryService
diff --git a/backend/api/router/note/router.go b/backend/api/router/note/router.go
index 7ed8857..7f138cb 100644
--- a/backend/api/router/note/router.go
+++ b/backend/api/router/note/router.go
@@ -14,5 +14,16 @@ func GetNoteRouter() chi.Router {
 	router.Delete("/{noteUUID}", middleware.AuthenticationMiddleware(http.HandlerFunc(DeleteNoteHandler)).(http.HandlerFunc))
 	router.Get("/", middleware.AuthenticationMiddleware(http.HandlerFunc(FetchNotesHandler)).(http.HandlerFunc))
 	router.Get("/{noteUUID}", middleware.AuthenticationMiddleware(http.HandlerFunc(GetNoteHandler)).(http.HandlerFunc))
-	return router
+
+	
+
+
+	// New routes for marking as favorite and unarchiving
+    router.Put("/{noteUUID}/mark-as-favorite", http.HandlerFunc(MarkNoteHandler))
+    router.Put("/{noteUUID}/unarchive", http.HandlerFunc(UnarchiveNoteHandler))
+
+    return router
+
+
+	
 }
diff --git a/backend/app/app.go b/backend/app/app.go
index 9b75870..65381e9 100644
--- a/backend/app/app.go
+++ b/backend/app/app.go
@@ -174,3 +174,14 @@ func (app *Application) DeleteNote(ctx context.Context, noteUUID uuid.UUID) erro
 	}
 	return nil
 }
+
+
+func (app *Application) MarkNote(ctx context.Context, noteUUID uuid.UUID) error {
+    // Implement the logic to mark a note as favorite
+    return nil
+}
+
+func (app *Application) UnarchiveNote(ctx context.Context, noteUUID uuid.UUID) error {
+    // Implement the logic to unarchive a note
+    return nil
+}
diff --git a/backend/mock/app.go b/backend/mock/app.go
index 08c76ec..3313196 100644
--- a/backend/mock/app.go
+++ b/backend/mock/app.go
@@ -39,3 +39,15 @@ func (app *MockApplication) DeleteNote(ctx context.Context, noteUUID uuid.UUID)
 	args := app.Called(ctx, noteUUID)
 	return args.Error(0)
 }
+
+
+
+func (app *MockApplication) MarkNote(ctx context.Context, noteUUID uuid.UUID) error {
+    args := app.Called(ctx, noteUUID)
+    return args.Error(0)
+}
+
+func (app *MockApplication) UnarchiveNote(ctx context.Context, noteUUID uuid.UUID) error {
+    args := app.Called(ctx, noteUUID)
+    return args.Error(0)
+}