david
336b21a835
- Creates scaffold for router and server - Main program set up for environment, OS signal listener - Makefile generic commands
63 lines
1.1 KiB
Go
63 lines
1.1 KiB
Go
package main
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import (
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"context"
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"log"
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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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"github.com/davidlick/supermarket-api/internal/http"
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"github.com/sirupsen/logrus"
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)
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var (
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cfg config
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logger *logrus.Logger
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err error
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)
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func init() {
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cfg, err = load()
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if err != nil {
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log.Fatal(err)
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}
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ll, err := logrus.ParseLevel(cfg.LogLevel)
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if err != nil {
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log.Fatal(err)
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}
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logger = logrus.New()
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logger.SetLevel(ll)
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}
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func main() {
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server := http.NewServer(cfg.APIPort, logger, cfg.Env)
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// Allow app to listen for OS Interrupts and SIGTERMS.
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serverErrors := make(chan error, 1)
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osSignals := make(chan os.Signal, 1)
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signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM)
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go func() {
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serverErrors <- server.Run()
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}()
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// Handling for server errors and OS signals.
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select {
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case err := <-serverErrors:
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log.Fatal("error starting server: %w", err.Error())
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case <-osSignals:
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log.Println("starting server shutdown...")
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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err := server.Shutdown(ctx)
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if err != nil {
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log.Fatalf("error shutting down http server: %v", err.Error())
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}
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}
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}
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