added backend and 2 endpoints fetch

backend/api/GetAllCategories.go

@@ -0,0 +1,17 @@
+package api
+
+import (
+	"backend/internal/category"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+func GetAllCategories(c *fiber.Ctx) error {
+	categories, err := category.GetAllCategories()
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+	return c.JSON(categories)
+}

backend/api/GetAllOperation.go

@@ -0,0 +1,17 @@
+package api
+
+import (
+	"backend/internal/operation"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+func GetAllOperation(c *fiber.Ctx) error {
+	operations, err := operation.GetAllOperation()
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+	return c.JSON(operations)
+}