79 lines
1.7 KiB
Go
79 lines
1.7 KiB
Go
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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"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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)
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func (app *application) serve() error {
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srv := &http.Server{
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Addr: fmt.Sprintf(":%d", app.config.port),
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Handler: app.routes(),
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IdleTimeout: time.Minute,
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ReadTimeout: 10 * time.Second,
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WriteTimeout: 30 * time.Second,
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}
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shutdownError := make(chan error)
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go func() {
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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s := <-quit
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app.logger.PrintInfo("caught signal", map[string]string{
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"signal": s.String(),
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})
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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// Call Shutdown() on the server like before, but now we only send on the
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// shutdownError channel if it returns an error.
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err := srv.Shutdown(ctx)
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if err != nil {
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shutdownError <- err
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}
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// Log a message to say that we're waiting for any background goroutines to
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// complete their tasks.
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app.logger.PrintInfo("completing background tasks", map[string]string{
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"addr": srv.Addr,
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})
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// Call Wait() to block until our WaitGroup counter is zero --- essentially
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// blocking until the background goroutines have finished. Then we return nil on
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// the shutdownError channel, to indicate that the shutdown completed without
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// any issues.
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app.wg.Wait()
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shutdownError <- nil
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}()
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app.logger.PrintInfo("starting server", map[string]string{
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"addr": srv.Addr,
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"env": app.config.env,
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})
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err := srv.ListenAndServe()
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if !errors.Is(err, http.ErrServerClosed) {
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return err
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}
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err = <-shutdownError
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if err != nil {
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return err
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}
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app.logger.PrintInfo("stopped server", map[string]string{
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"addr": srv.Addr,
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})
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return nil
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}
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