130 lines
3.2 KiB
Go
130 lines
3.2 KiB
Go
package main
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import (
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"context"
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"fmt"
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"log/slog"
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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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"github.com/gin-contrib/cors"
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"github.com/gin-gonic/gin"
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"github.com/uptrace/bun/extra/bundebug"
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"git.savin.nyc/alex/go-receipt-tracker-api/config"
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"git.savin.nyc/alex/go-receipt-tracker-api/database"
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"git.savin.nyc/alex/go-receipt-tracker-api/handlers"
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)
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var cfg = &config.Config{}
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const (
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LoggingOutputJson = "JSON"
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LoggingOutputText = "TEXT"
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)
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func configureLogging(config *config.Logging) *slog.Logger { //nolint:unparam
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if config == nil {
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return nil
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}
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var level slog.Level
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if err := level.UnmarshalText([]byte(config.Level)); err != nil {
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slog.Warn(err.Error())
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slog.Warn(fmt.Sprintf("logging level not recognized, defaulting to level %s", slog.LevelInfo.String()))
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level = slog.LevelInfo
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}
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var handler slog.Handler
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switch config.Output {
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case LoggingOutputJson:
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handler = slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{AddSource: cfg.Logging.Source, Level: level})
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case LoggingOutputText:
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handler = slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{AddSource: cfg.Logging.Source, Level: level})
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default:
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handler = slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{AddSource: cfg.Logging.Source, Level: level})
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}
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return slog.New(handler)
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}
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func main() {
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sigs := make(chan os.Signal, 1)
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done := make(chan bool, 1)
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signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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<-sigs
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done <- true
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}()
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var err error
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cfg, err = config.New()
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if err != nil { // Handle errors reading the config file
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slog.Error("Fatal error config file", "error", err.Error())
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os.Exit(1)
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}
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// LOGGER
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logger := configureLogging(cfg.Logging)
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logger.Debug("CONFIG", "config", cfg)
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// Create the "tasks" table in the database if it doesn't exist
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db, err := database.NewDB(cfg.DataBase, logger)
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if err != nil {
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logger.Error(err.Error())
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os.Exit(1)
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}
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// Add a query hook for logging
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db.AddQueryHook(bundebug.NewQueryHook(
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bundebug.WithVerbose(true),
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bundebug.FromEnv("BUNDEBUG"),
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))
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// Ping the database to test the connection
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err = db.Ping()
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if err != nil {
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logger.Debug("Failed to connect to the database")
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return
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}
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// Connection successful
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logger.Debug("Connected to the database")
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handlers.DB = db
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router := gin.Default()
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router.Use(cors.Default())
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v1 := router.Group("/api/v1")
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{
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v1.GET("/", handlers.HomePage)
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v1.GET("/receipts", handlers.GetReceipts)
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v1.GET("/receipts/:id", handlers.GetReceipt)
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v1.DELETE("/receipts/:id", handlers.RemoveReceipt)
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v1.POST("/receipts", handlers.AddReceipt)
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v1.PUT("/receipts/:id", handlers.UpdateReceipt)
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v1.GET("/receipts/:id/items", handlers.GetItems)
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}
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srv := &http.Server{
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Addr: ":8080",
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Handler: router.Handler(),
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}
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go func() {
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// service connections
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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logger.Error("cannot start ListenAndServe", "error", err)
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}
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}()
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<-done
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logger.Warn("caught signal, stopping...")
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := srv.Shutdown(ctx); err != nil {
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logger.Error("cannot shutdown server gracefully", "error", err)
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}
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logger.Info("main.go finished")
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}
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