95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
package main
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import (
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"context"
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"fmt"
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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/bookish/bookish-server/cmd/http"
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"github.com/davidlick/bookish/bookish-server/inventory"
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"github.com/davidlick/bookish/bookish-server/mysql"
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"github.com/davidlick/bookish/bookish-server/renter"
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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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err error
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logger = logrus.New()
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)
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func init() {
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// Get configuration from the environment.
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cfg, err = getConfig()
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if err != nil {
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log.Fatal(err.Error())
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}
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// Configure logger.
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logger.SetOutput(os.Stdout)
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logLevel, err := logrus.ParseLevel(cfg.LogLevel)
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if err != nil {
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log.Fatal(err.Error())
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}
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logger.SetLevel(logLevel)
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logger.SetReportCaller(true)
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logger.SetFormatter(&logrus.JSONFormatter{})
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}
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func main() {
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// Connect to application database and create store.
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appDSN := fmt.Sprintf("%s:%s@tcp(%s:%s)/bookish?parseTime=True&loc=Local",
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cfg.DBUser,
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cfg.DBPass,
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cfg.DBHost,
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cfg.DBPort,
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)
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appDB, err := mysql.NewStore(appDSN)
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if err != nil {
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log.Fatalf("could not connect to application database: %v", err.Error())
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}
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// Build domain services.
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renterService := renter.NewService(appDB)
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inventoryService := inventory.NewService(appDB)
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// Initialize server.
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server := http.Server{
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Port: cfg.APIPort,
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BooksHost: cfg.BooksHost,
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Logger: logger,
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Renter: renterService,
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Inventory: inventoryService,
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}
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// Create channels to listen for OS signals.
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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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// Start the server.
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go func() {
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serverErrors <- server.Run()
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}()
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// Block until an error or interrupt/sigterm is received.
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select {
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case err := <-serverErrors:
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log.Fatalf("error starting server: %v", 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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