Wire everything together, config and transaction implementation

main.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"os"
+
+	"connectrpc.com/connect"
+	"connectrpc.com/validate"
+	"git.kocoder.xyz/vt/financial-tracking-service/internal/config"
+	"git.kocoder.xyz/vt/financial-tracking-service/internal/database"
+	"git.kocoder.xyz/vt/financial-tracking-service/internal/proto/transaction/v1/transactionv1connect"
+	"git.kocoder.xyz/vt/financial-tracking-service/internal/service"
+	sdb "git.kocoder.xyz/vt/service-base/database"
+	"git.kocoder.xyz/vt/service-base/middleware"
+	"git.kocoder.xyz/vt/service-base/rpc"
+	"git.kocoder.xyz/vt/service-base/server"
+	"git.kocoder.xyz/vt/service-base/telemetry"
+	_ "github.com/lib/pq"
+)
+
+func main() {
+	telemetry.SetupFallbackLogger()
+
+	conf := config.Read()
+
+	ctx := context.Background()
+	shutdown, err := telemetry.Init(ctx, conf.OTLP_ENDPOINT, "financial-tracking-server")
+	if err != nil {
+		slog.Error("Failed to initialize telemetry", slog.String("err", err.Error()))
+	}
+	defer func() {
+		if err := shutdown(ctx); err != nil {
+			slog.Error("Error shutting down telemetry", slog.String("err", err.Error()))
+		}
+	}()
+
+	// Connect to DB and wrap with otelsql for database tracing
+	db, err := sdb.OpenPostgres(conf.DB_URL)
+	if err != nil {
+		slog.Error("failed to connect to database", slog.String("err", err.Error()))
+		os.Exit(1)
+	}
+	defer db.Close()
+
+	dbQueries := database.New(db)
+
+	mux := rpc.NewServeMux()
+
+	path, handler := transactionv1connect.NewTransactionServiceHandler(
+		service.NewTransactionService(conf, dbQueries),
+		connect.WithInterceptors(validate.NewInterceptor()),
+	)
+	mux.RegisterConnect(transactionv1connect.TransactionServiceName, path, handler)
+
+	mux.MountReflection()
+
+	c := middleware.NewCORS(conf.ALLOWED_ORIGINS)
+	corsMux := c.Handler(mux)
+
+	// Start server with OpenTelemetry tracing, HTTP/1.1 & HTTP/2 (h2c) support
+	if err := server.ListenAndServeH2C(conf.LISTEN_ON, corsMux, "financial-tracking-server"); err != nil {
+		slog.Error("Server failed", slog.String("err", err.Error()))
+	}
+}