Initial commit

internal/api/server.go

@@ -0,0 +1,72 @@
+package api
+
+import (
+	"context"
+	"errors"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+	"time"
+)
+
+func (app *application) serve() error {
+	maintenanceContext, stopMaintenance := context.WithCancel(context.Background())
+	defer stopMaintenance()
+	app.background(func() {
+		if err := app.runLifecycleMaintenance(time.Now()); err != nil {
+			app.logger.Error("lifecycle maintenance failed", "error", err)
+		}
+		ticker := time.NewTicker(6 * time.Hour)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-maintenanceContext.Done():
+				return
+			case now := <-ticker.C:
+				if err := app.runLifecycleMaintenance(now); err != nil {
+					app.logger.Error("lifecycle maintenance failed", "error", err)
+				}
+			}
+		}
+	})
+	srv := &http.Server{
+		Addr:              net.JoinHostPort(app.config.Host, strconv.Itoa(app.config.Port)),
+		Handler:           app.routes(),
+		IdleTimeout:       time.Minute,
+		ReadHeaderTimeout: 5 * time.Second,
+		ReadTimeout:       2 * time.Minute,
+		WriteTimeout:      2 * time.Minute,
+	}
+
+	shutdownError := make(chan error)
+
+	go func() {
+		quit := make(chan os.Signal, 1)
+		signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+		s := <-quit
+
+		app.logger.Info("stopping server", "addr", srv.Addr, "signal", s.String())
+		shutdownError <- srv.Shutdown(context.Background())
+	}()
+
+	app.logger.Info("starting server", "addr", srv.Addr, "env", app.config.Env)
+	err := srv.ListenAndServe()
+	if !errors.Is(err, http.ErrServerClosed) {
+		return err
+	}
+
+	err = <-shutdownError
+	if err != nil {
+		return err
+	}
+
+	stopMaintenance()
+	app.logger.Info("waiting for background tasks")
+	app.wg.Wait()
+
+	app.logger.Info("shutdown complete")
+	return nil
+}