udemy-go-web-2/cmd/api/api.go

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package main
import (
"flag"
"fmt"
"log"
"net/http"
"os"
"time"
)
const (
version = "1.0.0"
)
type config struct {
port int
env string
db struct {
dsn string
}
stripe struct {
secret string
key string
}
}
type application struct {
config config
infolog *log.Logger
errorLog *log.Logger
version string
}
func (app *application) serve() error {
srv := &http.Server{
Addr: fmt.Sprintf(":%d", app.config.port),
Handler: app.routes(),
IdleTimeout: 30 * time.Second,
ReadTimeout: 10 * time.Second,
ReadHeaderTimeout: 5 * time.Second,
WriteTimeout: 5 * time.Second,
}
app.infolog.Printf(
"Starting Backend server in %s mode on port %d",
app.config.env,
app.config.port,
)
return srv.ListenAndServe()
}
func main() {
var cfg config
flag.IntVar(&cfg.port, "port", 4001, "Server port to listen on")
flag.StringVar(
&cfg.env,
"env",
"development",
"Application environment {development|production|maintenance}",
)
flag.StringVar(
&cfg.db.dsn,
"dsn",
"root@tcp(localhost:6379)/widgets?parseTime=true&tls=false",
"Application environment {development|production}",
)
flag.Parse()
cfg.stripe.key = os.Getenv("STRIPE_KEY")
cfg.stripe.secret = os.Getenv("STRIPE_SECRET")
infoLog := log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
errorLog := log.New(os.Stdout, "ERROR\t", log.Ldate|log.Ltime|log.Lshortfile)
app := &application{
version: version,
config: cfg,
infolog: infoLog,
errorLog: errorLog,
}
err := app.serve()
if err != nil {
log.Fatal(err)
}
}