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main.go
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main.go
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package main
import (
"errors"
"log"
"os"
"github.com/dronezzzko/go-multilang-api/internal/api"
_ "github.com/dronezzzko/go-multilang-api/internal/translation"
"github.com/spf13/pflag"
)
const (
exitCodeNoErr = 0
exitCodeInvalidArgs = 2
)
const defaultPort = 8080
func main() {
logger := log.New(os.Stderr, "api ", log.LstdFlags)
fs := pflag.NewFlagSet("default", pflag.ContinueOnError)
fs.Int("port", defaultPort, "HTTP port to bind to")
err := fs.Parse(os.Args[1:])
switch {
case errors.Is(err, pflag.ErrHelp):
os.Exit(exitCodeNoErr)
case err != nil:
logger.Printf("parse arguments: %s\n", err.Error())
os.Exit(exitCodeInvalidArgs)
}
err = run(fs, logger)
if err != nil {
logger.Fatalln(err)
}
}
func run(fs *pflag.FlagSet, logger *log.Logger) error {
apiPort, err := fs.GetInt("port")
if err != nil {
return err
}
server, err := api.NewServer(apiPort, logger)
if err != nil {
return err
}
return server.ListenAndServe()
}