guestbook/cmd/web/main.go

68 lines
1.5 KiB
Go

package main
import (
"database/sql"
"flag"
"log/slog"
"net/http"
"os"
"text/template"
"git.32bit.cafe/32bitcafe/guestbook/internal/models"
_ "modernc.org/sqlite"
)
type application struct {
logger *slog.Logger
templateCache map[string]*template.Template
guestbooks *models.GuestbookModel
users *models.UserModel
guestbookComments *models.GuestbookCommentModel
}
func main() {
addr := flag.String("addr", ":3000", "HTTP network address")
dsn := flag.String("dsn", "guestbook.db", "data source name")
flag.Parse()
logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
db, err := openDB(*dsn)
if err != nil {
logger.Error(err.Error())
os.Exit(1)
}
defer db.Close()
templateCache, err := newTemplateCache()
if err != nil {
logger.Error(err.Error())
os.Exit(1)
}
app := &application{
templateCache: templateCache,
logger: logger,
guestbooks: &models.GuestbookModel{DB: db},
users: &models.UserModel{DB: db},
guestbookComments: &models.GuestbookCommentModel{DB: db},
}
logger.Info("Starting server on %s", slog.Any("addr", ":4000"))
err = http.ListenAndServe(*addr, app.routes());
logger.Error(err.Error())
os.Exit(1)
}
func openDB(dsn string) (*sql.DB, error) {
db, err := sql.Open("sqlite", dsn)
if err != nil {
return nil, err
}
if err = db.Ping(); err != nil {
return nil, err
}
return db, nil
}