initiate repo

internal/database/postgres.go

@@ -0,0 +1,44 @@
+package database
+
+import (
+	"antrian-operasi/internal/config"
+	"database/sql"
+	"fmt"
+
+	_ "github.com/jackc/pgx/v5/stdlib"
+)
+
+func (s *service) openPostgresConnection(config config.DatabaseConfig) (*sql.DB, error) {
+	// Build connection string with security parameters
+	// Convert timeout durations to seconds for pgx
+	connectTimeoutSec := int(config.ConnectTimeout.Seconds())
+	statementTimeoutSec := int(config.StatementTimeout.Seconds())
+
+	connStr := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=%s connect_timeout=%d statement_timeout=%d",
+		config.Host,
+		config.Port,
+		config.Username,
+		config.Password,
+		config.Database,
+		config.SSLMode,
+		connectTimeoutSec,
+		statementTimeoutSec,
+	)
+
+	if config.Schema != "" {
+		connStr += " search_path=" + config.Schema
+	}
+
+	// Add SSL configuration if required
+	if config.RequireSSL {
+		connStr += " sslcert=" + config.SSLCert + " sslkey=" + config.SSLKey + " sslrootcert=" + config.SSLRootCert
+	}
+
+	// Open connection using standard database/sql interface
+	db, err := sql.Open("pgx", connStr)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open PostgreSQL connection: %w", err)
+	}
+
+	return db, nil
+}