feat: +register

package/backend/internal/user/repo.go

@@ -0,0 +1,46 @@
+package user
+
+import (
+	"context"
+	"errors"
+
+	// "github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+type Repo struct {
+	pool *pgxpool.Pool
+}
+
+func NewRepo(pool *pgxpool.Pool) Repo {
+	return Repo {
+		pool: pool,
+	}
+}
+
+func (r *Repo) Exec(ctx context.Context, query string, args ...any) (pgconn.CommandTag, error) {
+	conn, err := r.pool.Acquire(context.Background())
+	if err != nil {
+		return pgconn.CommandTag{}, err
+	}
+
+	return conn.Exec(ctx, query, args...)
+}
+
+func (r *Repo) CreateUser(ctx context.Context, email, hash string) error {
+	_, err := r.Exec(
+		ctx,
+		"INSERT INTO users(email, password_hash) VALUES ($1, $2)",
+		email, hash,
+	)
+
+	if err != nil {
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			return ErrDuplicateKey
+		}
+	}
+
+	return err
+}