feat: add additional routes from defined directory

internal/route_config.go

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2024 Jonas Kaninda
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package pkg
+
+import (
+	"fmt"
+	"github.com/jkaninda/goma-gateway/pkg/logger"
+	"gopkg.in/yaml.v3"
+	"os"
+)
+
+// loadExtraRoutes loads additional routes
+func loadExtraRoutes(routePath string) ([]Route, error) {
+	logger.Info("Loading additional routes from %s", routePath)
+	yamlFiles, err := loadExtraFiles(routePath)
+	if err != nil {
+		return nil, fmt.Errorf("error loading extra files: %v", err)
+	}
+	var extraRoutes []Route
+	for _, yamlFile := range yamlFiles {
+		buf, err := os.ReadFile(yamlFile)
+		if err != nil {
+			return nil, fmt.Errorf("error loading extra file: %v", err)
+		}
+		ex := &ExtraRoute{}
+		err = yaml.Unmarshal(buf, ex)
+		if err != nil {
+			return nil, fmt.Errorf("in file %q: %w", ConfigFile, err)
+		}
+		extraRoutes = append(extraRoutes, ex.Routes...)
+
+	}
+	if len(extraRoutes) == 0 {
+		return nil, fmt.Errorf("no extra routes found in %s", routePath)
+	} else {
+		logger.Info("Loaded %d extra routes from %s", len(extraRoutes), routePath)
+
+	}
+	return extraRoutes, nil
+}