init

internal/database/client.go

@@ -0,0 +1,30 @@
+package database
+
+import (
+	"context"
+	"fmt"
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"log/slog"
+	"os"
+)
+
+type Client interface {
+	Exec(ctx context.Context, sql string, args ...interface{}) (pgconn.CommandTag, error)
+	Query(ctx context.Context, sql string, args ...interface{}) (pgx.Rows, error)
+	QueryRow(ctx context.Context, sql string, args ...interface{}) pgx.Row
+	Begin(ctx context.Context) (pgx.Tx, error)
+	Ping(ctx context.Context) error
+}
+
+func NewClient(ctx context.Context, connUrl string, logger *slog.Logger) (*pgxpool.Pool, error) {
+	pool, err := pgxpool.New(ctx, connUrl)
+	if err != nil {
+		fmt.Println(fmt.Fprintf(os.Stderr, "Unable to create connection pool: %v\n", err))
+		logger.Error("Unable to create connection pool: ", err)
+		os.Exit(1)
+	}
+
+	return pool, nil
+}