121 lines
2.8 KiB
Go
121 lines
2.8 KiB
Go
package serve
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import (
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"context"
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"errors"
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"fmt"
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"net/http"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"gitea.dwysokinski.me/Kichiyaki/chizap"
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"gitea.dwysokinski.me/twhelp/sessions/cmd/sessions/internal"
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"gitea.dwysokinski.me/twhelp/sessions/internal/bundb"
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"gitea.dwysokinski.me/twhelp/sessions/internal/router/meta"
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"github.com/uptrace/bun"
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"github.com/urfave/cli/v2"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/chi/v5/middleware"
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"go.uber.org/zap"
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)
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const (
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defaultPort = "9234"
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readTimeout = 2 * time.Second
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readHeaderTimeout = 2 * time.Second
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writeTimeout = 2 * time.Second
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idleTimeout = 2 * time.Second
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serverShutdownTimeout = 10 * time.Second
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metaEndpointsPrefix = "/_meta"
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)
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func New() *cli.Command {
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return &cli.Command{
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Name: "serve",
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Usage: "Runs the http server",
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Action: func(c *cli.Context) error {
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db, err := internal.NewBunDB()
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if err != nil {
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return fmt.Errorf("internal.NewBunDB: %w", err)
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}
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defer func() {
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_ = db.Close()
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}()
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logger := zap.L()
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srv, err := newServer(serverConfig{
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appVersion: c.App.Version,
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logger: logger,
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db: db,
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})
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if err != nil {
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return fmt.Errorf("newServer: %w", err)
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}
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go runServer(srv, logger)
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logger.Info("Server is listening on the port "+defaultPort, zap.String("port", defaultPort))
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waitForSignal(c.Context)
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ctxShutdown, cancelShutdown := context.WithTimeout(c.Context, serverShutdownTimeout)
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defer cancelShutdown()
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if err := srv.Shutdown(ctxShutdown); err != nil {
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return fmt.Errorf("srv.Shutdown: %w", err)
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}
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return nil
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},
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}
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}
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type serverConfig struct {
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appVersion string
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logger *zap.Logger
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db *bun.DB
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}
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func newServer(cfg serverConfig) (*http.Server, error) {
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// router
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r := chi.NewRouter()
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r.Use(getChiMiddlewares(cfg.logger)...)
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r.Mount(metaEndpointsPrefix, meta.NewRouter([]meta.Checker{bundb.NewChecker(cfg.db)}))
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return &http.Server{
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Addr: ":" + defaultPort,
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Handler: r,
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ReadTimeout: readTimeout,
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ReadHeaderTimeout: readHeaderTimeout,
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WriteTimeout: writeTimeout,
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IdleTimeout: idleTimeout,
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}, nil
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}
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func getChiMiddlewares(logger *zap.Logger) chi.Middlewares {
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return chi.Middlewares{
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middleware.RealIP,
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chizap.Logger(logger, chizap.WithFilter(omitMetaEndpoints)),
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middleware.Recoverer,
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}
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}
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func runServer(srv *http.Server, logger *zap.Logger) {
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if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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logger.Fatal("srv.ListenAndServe:" + err.Error())
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}
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}
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func waitForSignal(ctx context.Context) {
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ctx, stop := signal.NotifyContext(ctx, os.Interrupt, syscall.SIGTERM)
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defer stop()
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<-ctx.Done()
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}
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func omitMetaEndpoints(r *http.Request) bool {
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return !strings.HasPrefix(r.URL.Path, metaEndpointsPrefix)
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}
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