Locations Service (#34)

* Locations Proto

* Add Read RPC

* Locations Service

* Add read locks

locations/main.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	geo "github.com/hailocab/go-geoindex"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+
+	"github.com/micro/services/locations/handler"
+	"github.com/micro/services/locations/model"
+	pb "github.com/micro/services/locations/proto"
+
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/config"
+	"github.com/micro/micro/v3/service/logger"
+)
+
+var dbAddress = "postgresql://postgres@localhost:5432/locations?sslmode=disable"
+
+func main() {
+	// Create service
+	srv := service.New(
+		service.Name("locations"),
+		service.Version("latest"),
+	)
+
+	// Connect to the database
+	cfg, err := config.Get("locations.database")
+	if err != nil {
+		logger.Fatalf("Error loading config: %v", err)
+	}
+	addr := cfg.String(dbAddress)
+	db, err := gorm.Open(postgres.Open(addr), &gorm.Config{})
+	if err != nil {
+		logger.Fatalf("Error connecting to database: %v", err)
+	}
+
+	// Migrate the database
+	if err := db.AutoMigrate(&model.Location{}); err != nil {
+		logger.Fatalf("Error migrating database: %v", err)
+	}
+
+	// Register handler
+	pb.RegisterLocationsHandler(srv.Server(), &handler.Locations{
+		DB: db, Geoindex: geo.NewPointsIndex(geo.Km(0.1)),
+	})
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		logger.Fatal(err)
+	}
+}