Add PostgreSQL database option and more booking flow functionalities

handler/handler.go

@@ -1,3 +1,4 @@
+// Package handler provides the business logic for the carpool service
 package handler
 
 import (
@@ -8,17 +9,20 @@ import (
 )
 
 type CarpoolServiceHandler struct {
-	Config  *viper.Viper
-	Storage storage.Storage
-	Tiles   *tiles.TilesHandler
-	Routing routing.RoutingService
+	Config             *viper.Viper
+	Storage            storage.Storage
+	Tiles              *tiles.TilesHandler
+	Routing            routing.RoutingService
+	InternalOperatorID string
 }
 
 func NewCarpoolServiceHandler(cfg *viper.Viper, storage storage.Storage, tilesHandler *tiles.TilesHandler, routing routing.RoutingService) (*CarpoolServiceHandler, error) {
+	operator := cfg.GetString("interoperability.internal_operator_id")
 	return &CarpoolServiceHandler{
-		Config:  cfg,
-		Storage: storage,
-		Tiles:   tilesHandler,
-		Routing: routing,
+		Config:             cfg,
+		Storage:            storage,
+		Tiles:              tilesHandler,
+		Routing:            routing,
+		InternalOperatorID: operator,
 	}, nil
 }