81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
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// Command server runs the MealQuest HTTP service.
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package main
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import (
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"context"
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"errors"
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"fmt"
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"log/slog"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/config"
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"code.cubecraftlabs.com/Maniacs_Mansion/Meal-Quest/internal/server"
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)
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// version is set at build time with -ldflags "-X main.version=<version>".
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var version = "dev"
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func main() {
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cfg, err := config.Load()
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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if err := run(cfg, logger); err != nil {
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logger.Error("server stopped", "error", err)
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os.Exit(1)
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}
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}
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func run(cfg config.Config, logger *slog.Logger) error {
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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srv := &http.Server{
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Addr: cfg.HTTPAddr,
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Handler: server.NewRouter(logger, version),
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ReadHeaderTimeout: 10 * time.Second,
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ErrorLog: slog.NewLogLogger(logger.Handler(), slog.LevelError),
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}
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errc := make(chan error, 1)
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go func() {
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logListening(logger, cfg)
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errc <- srv.ListenAndServe()
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}()
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select {
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case err := <-errc:
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return err
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case <-ctx.Done():
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}
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logger.Info("shutting down", "timeout", cfg.ShutdownTimeout.String())
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shutdownCtx, cancel := context.WithTimeout(context.Background(), cfg.ShutdownTimeout)
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defer cancel()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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return fmt.Errorf("shutdown: %w", err)
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}
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if err := <-errc; !errors.Is(err, http.ErrServerClosed) {
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return err
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}
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return nil
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}
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// logListening logs the startup line. Only the public URL's origin is logged
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// so no credential-bearing URL component can reach the log.
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func logListening(logger *slog.Logger, cfg config.Config) {
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logger.Info("listening",
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"addr", cfg.HTTPAddr,
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"public_origin", cfg.PublicOrigin(),
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"data_dir", cfg.DataDir,
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"version", version,
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)
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}
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