basic logger middleware and formatting

cmd/main.go

@@ -2,8 +2,11 @@ package main
 
 import (
 	"database/sql"
+	"fmt"
 	"log"
+	"log/slog"
 	"net/http"
+	"os"
 
 	"gitea.michaelthomson.dev/mthomson/habits/internal/migrate"
 	todohandler "gitea.michaelthomson.dev/mthomson/habits/internal/todo/handler"
@@ -12,7 +15,18 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 )
 
+func loggingMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		slog.Info(fmt.Sprintf("[%s] %s", r.Method, r.URL))
+		next.ServeHTTP(w, r)
+	})
+}
+
 func main() {
+	// create logger
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	slog.SetDefault(logger)
+
 	// create db pool
 	db, err := sql.Open("sqlite3", "./habits.db")
 	if err != nil {
@@ -34,14 +48,14 @@ func main() {
 	mux := http.NewServeMux()
 
 	// register handlers
-	mux.Handle("GET /todo/{id}", todohandler.HandleTodoGet(todoService))
+	mux.Handle("GET /todo/{id}", loggingMiddleware(todohandler.HandleTodoGet(todoService)))
 	mux.Handle("POST /todo", todohandler.HandleTodoCreate(todoService))
 	mux.Handle("DELETE /todo/{id}", todohandler.HandleTodoDelete(todoService))
 	mux.Handle("PUT /todo/{id}", todohandler.HandleTodoUpdate(todoService))
 
 	// create server
 	server := &http.Server{
-		Addr: ":8080",
+		Addr:    ":8080",
 		Handler: mux,
 	}
 

internal/migrate/migrate.go

@@ -5,6 +5,7 @@ import (
 	"embed"
 	"fmt"
 	"log"
+	"log/slog"
 
 	_ "github.com/mattn/go-sqlite3"
 )
@@ -18,6 +19,7 @@ type Migration struct {
 }
 
 func Migrate(db *sql.DB) {
+	slog.Info("Running migrations...")
 	migrationTableSql := `
 	CREATE TABLE IF NOT EXISTS migrations(
 	  version INTEGER PRIMARY KEY,
@@ -35,12 +37,11 @@ func Migrate(db *sql.DB) {
 	}
 
 	for _, file := range files {
-		fmt.Printf("Checking file: %s\n", file.Name())
 		var migration Migration
 		row := db.QueryRow("SELECT * FROM migrations WHERE name = ?;", file.Name())
 		err = row.Scan(&migration.Version, &migration.Name)
 		if err == sql.ErrNoRows {
-			fmt.Printf("Running migration: %s\n", file.Name())
+			slog.Info(fmt.Sprintf("Running migration: %s", file.Name()))
 			migrationSql, err := migrations.ReadFile(fmt.Sprintf("migrations/%s", file.Name()))
 			if err != nil {
 				log.Fatal(err)
@@ -57,4 +58,5 @@ func Migrate(db *sql.DB) {
 			}
 		}
 	}
+	slog.Info("Migrations completed")
 }

internal/todo/repository/inmemory/inmemory.go

@@ -16,7 +16,6 @@ func NewInMemoryTodoRepository() InMemoryTodoRepository {
 	}
 }
 
-
 func (r *InMemoryTodoRepository) GetById(id int64) (repository.TodoRow, error) {
 	todo, found := r.Db[id]
 

internal/todo/repository/repository.go

@@ -9,7 +9,7 @@ var (
 )
 
 type TodoRow struct {
-	Id int64
+	Id   int64
 	Name string
 	Done bool
 }