Second checkpoint

internal/repository/postgres/event.go

@@ -0,0 +1,26 @@
+package postgres
+
+import (
+	"context"
+	"encoding/json"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// EventRepository records events for the generic example consumer. It is part of
+// the messaging scaffold; remove it alongside the example flow.
+type EventRepository struct {
+	pool *pgxpool.Pool
+}
+
+// NewEventRepository returns an EventRepository backed by the given pool.
+func NewEventRepository(pool *pgxpool.Pool) *EventRepository {
+	return &EventRepository{pool: pool}
+}
+
+// Record inserts an event row. It satisfies rabbitmq.EventRecorder.
+func (r *EventRepository) Record(ctx context.Context, kind string, payload json.RawMessage) error {
+	_, err := r.pool.Exec(ctx,
+		`INSERT INTO events (kind, payload) VALUES ($1, $2)`, kind, payload)
+	return mapError(err)
+}