feat: added database migration on startup and user+list db migrations

cmd/api-server/main.go

@@ -69,6 +69,10 @@ func run(serviceName string, serviceVersion string) error {
 		}
 	}()
 
+	if err := database.RunMigrations(db); err != nil {
+		slog.Error("Failed to run migrations", slog.Any("error", err))
+	}
+
 	srv := makeServer(db, cfg.Port)
 	go func() {
 		slog.Info("Starting http server", "addr", srv.Addr)

go.mod

@@ -3,6 +3,7 @@ module github.com/robindittmar/dttmr-api
 go 1.26
 
 require (
+	github.com/golang-migrate/migrate/v4 v4.19.1
 	github.com/jackc/pgx/v5 v5.10.0
 	github.com/joho/godotenv v1.5.1
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.69.0
@@ -25,6 +26,7 @@ require (
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/lib/pq v1.10.9 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.44.0 // indirect
 	go.opentelemetry.io/otel/metric v1.44.0 // indirect

internal/database/migrate.go

@@ -0,0 +1,43 @@
+package database
+
+import (
+	"database/sql"
+	"embed"
+	"errors"
+	"fmt"
+	"log/slog"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/postgres"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+//go:embed migrations/*.sql
+var migrationFS embed.FS
+
+func RunMigrations(db *sql.DB) error {
+	sourceDriver, err := iofs.New(migrationFS, "migrations")
+	if err != nil {
+		return fmt.Errorf("failed to load embedded migrations: %w", err)
+	}
+
+	dbDriver, err := postgres.WithInstance(db, &postgres.Config{})
+	if err != nil {
+		return fmt.Errorf("failed to create migration db driver: %w", err)
+	}
+
+	m, err := migrate.NewWithInstance("iofs", sourceDriver, "postgres", dbDriver)
+	if err != nil {
+		return fmt.Errorf("failed to initialize migrator: %w", err)
+	}
+
+	slog.Info("Running database migrations...")
+	err = m.Up()
+
+	if err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("failed to run database migrations: %w", err)
+	}
+
+	slog.Info("Database migrations applied successfully")
+	return nil
+}

internal/database/migrations/000001_create_users.down.sql

@@ -0,0 +1,2 @@
+DROP TABLE IF EXISTS sessions;
+DROP TABLE IF EXISTS users;

internal/database/migrations/000001_create_users.up.sql

@@ -0,0 +1,16 @@
+CREATE TABLE IF NOT EXISTS users (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    email VARCHAR(255) UNIQUE NOT NULL,
+    name VARCHAR(255) NOT NULL,
+    password_hash VARCHAR(255) NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS sessions (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    token_id UUID UNIQUE NOT NULL,
+    is_revoked BOOLEAN NOT NULL DEFAULT FALSE,
+    expires_at TIMESTAMPTZ NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

internal/database/migrations/000002_create_lists.down.sql

@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS list_items;
+DROP TABLE IF EXISTS list_users;
+DROP TABLE IF EXISTS lists;

internal/database/migrations/000002_create_lists.up.sql

@@ -0,0 +1,26 @@
+CREATE TABLE IF NOT EXISTS lists (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    modified_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS list_users (
+    list_id UUID REFERENCES lists(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    PRIMARY KEY (list_id, user_id)
+);
+
+CREATE INDEX idx_list_users_user_id ON list_users(user_id);
+
+CREATE TABLE IF NOT EXISTS list_items (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    list_id UUID REFERENCES lists(id) ON DELETE CASCADE,
+    title VARCHAR(255) NOT NULL,
+    is_completed BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    modified_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_list_items_list_id ON list_items(list_id);