90 lines
2.1 KiB
Go
90 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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"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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"nfeeder/internal/db"
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"nfeeder/internal/web"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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func main() {
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ctx, ctxCancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer ctxCancel()
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// DB init
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// ------------------------------------------------------------
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connStr := os.Getenv("DATABASE_URL")
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if connStr == "" {
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log.Fatal("DATABASE_URL environment variable is not set")
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}
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poolConfig, err := pgxpool.ParseConfig(connStr)
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if err != nil {
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log.Fatalf("Unable to parse DATABASE_URL: %v", err)
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}
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poolConfig.MaxConns = 25
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poolConfig.MinConns = 5
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poolConfig.MaxConnLifetime = 5 * time.Minute
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poolConfig.MaxConnIdleTime = 30 * time.Second
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pool, err := pgxpool.NewWithConfig(ctx, poolConfig)
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if err != nil {
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log.Fatalf("Unable to create connection pool: %v", err)
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}
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// Verify the connection is alive before proceeding
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if err := pool.Ping(ctx); err != nil {
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log.Fatalf("Unable to reach database: %v", err)
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}
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fmt.Println("Database connection established")
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defer func() {
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pool.Close()
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fmt.Println("Database pool closed")
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}()
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// Create Store sqlc wrapper
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store := db.NewStore(pool)
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// Server Init
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// ------------------------------------------------------------
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server := web.NewServer(store)
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// We run it in a goroutine so it doesn't block main from reaching the signal listener.
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go func() {
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addr := os.Getenv("SERVER_PORT")
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if connStr == "" {
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log.Fatal("SERVER_PORT environment variable is not set")
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}
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fmt.Printf("Server starting on %s\n", addr)
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if err := server.Start(addr); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Server failed: %v", err)
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}
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}()
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// Graceful Shutdown
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// ------------------------------------------------------------
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<-ctx.Done()
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fmt.Println("\nShutdown signal received. Starting graceful exit...")
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shutdownCtx, shutdownCtxCancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer shutdownCtxCancel()
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if err := server.Shutdown(shutdownCtx); err != nil {
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log.Fatalf("Graceful shutdown failed: %v", err)
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}
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fmt.Println("Server exited properly")
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}
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