131 lines
3.1 KiB
Go
131 lines
3.1 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"errors"
|
|
"fmt"
|
|
"log/slog"
|
|
"net/http"
|
|
"os"
|
|
"os/signal"
|
|
"syscall"
|
|
"time"
|
|
|
|
"github.com/joho/godotenv"
|
|
"github.com/robindittmar/dttmr-api/internal/api/router"
|
|
"github.com/robindittmar/dttmr-api/internal/config"
|
|
"github.com/robindittmar/dttmr-api/internal/database"
|
|
"github.com/robindittmar/dttmr-api/internal/telemetry"
|
|
)
|
|
|
|
func main() {
|
|
serviceName := "dttmr-api"
|
|
serviceVersion := "0.1.0"
|
|
|
|
if err := run(serviceName, serviceVersion); err != nil {
|
|
slog.Error("service crashed")
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
func run(serviceName string, serviceVersion string) error {
|
|
time.Local, _ = time.LoadLocation("UTC")
|
|
|
|
_ = godotenv.Load(".env")
|
|
setupLogging()
|
|
|
|
slog.Info("starting service", slog.String("service", serviceName), slog.String("version", serviceVersion))
|
|
|
|
cfg := config.Load()
|
|
|
|
telCfg := telemetry.Config{
|
|
ServiceName: serviceName,
|
|
ServiceVersion: serviceVersion,
|
|
Endpoint: cfg.OTLPEndpoint,
|
|
Environment: cfg.Environment,
|
|
}
|
|
shutdownTelemetry, err := telemetry.Init(context.Background(), telCfg)
|
|
if err != nil {
|
|
slog.Error("failed to initialize telemetry", err)
|
|
return err
|
|
}
|
|
defer func() {
|
|
shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
|
defer cancel()
|
|
|
|
if err := shutdownTelemetry(shutdownCtx); err != nil {
|
|
slog.Error("failed to shutdown telemetry", slog.Any("error", err))
|
|
}
|
|
}()
|
|
|
|
db, err := database.New(context.Background(), cfg.DatabaseURL)
|
|
if err != nil {
|
|
slog.Error("failed to initialize database", slog.Any("error", err))
|
|
return err
|
|
}
|
|
defer func() {
|
|
err := db.Close()
|
|
if err != nil {
|
|
slog.Error("failed to close database connection", slog.Any("error", err))
|
|
}
|
|
}()
|
|
|
|
if err := database.RunMigrations(db); err != nil {
|
|
slog.Error("failed to run migrations", slog.Any("error", err))
|
|
}
|
|
|
|
srv := makeServer(db, cfg.Port)
|
|
go func() {
|
|
slog.Info("starting http server", "addr", srv.Addr)
|
|
if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
|
|
slog.Error("failed to start http server", err)
|
|
os.Exit(1)
|
|
}
|
|
}()
|
|
|
|
quit := make(chan os.Signal, 1)
|
|
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
|
|
sig := <-quit
|
|
slog.Info("shutting down server...", slog.String("signal", sig.String()))
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
|
defer cancel()
|
|
|
|
if err := srv.Shutdown(ctx); err != nil {
|
|
slog.Error("server forced to shutdown", slog.Any("error", err))
|
|
return err
|
|
}
|
|
|
|
slog.Info("service shutdown successful!")
|
|
return nil
|
|
}
|
|
|
|
func setupLogging() {
|
|
baseHandler := slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
|
|
Level: slog.LevelInfo,
|
|
})
|
|
|
|
traceHandler := &telemetry.TraceHandler{Handler: baseHandler}
|
|
|
|
logger := slog.New(traceHandler)
|
|
slog.SetDefault(logger)
|
|
}
|
|
|
|
func makeServer(db *sql.DB, port int) *http.Server {
|
|
routerConfig := router.Config{
|
|
Database: db,
|
|
}
|
|
mux := router.NewMux(routerConfig)
|
|
|
|
srv := &http.Server{
|
|
Addr: fmt.Sprintf(":%d", port),
|
|
Handler: mux,
|
|
ReadTimeout: 5 * time.Second,
|
|
WriteTimeout: 10 * time.Second,
|
|
IdleTimeout: 120 * time.Second,
|
|
}
|
|
|
|
return srv
|
|
}
|