put_and_store.go

func (m *BinManager) BinPut(ctx context.Context, b *bin.Bin) (err error) {
	b.Requests = nil
	encoded, err := proto.Marshal(b)
	if err != nil {
		return err
	}
	return m.storage.Store(ctx, "bins/"+b.Id, encoded, nil)
}
...
// store package
func (s *Storage) Store(ctx context.Context, id string, data []byte, metadata map[string]string) error {
	err := s.db.Update(func(txn *badger.Txn) error {
		// Your code here…
		return txn.Set([]byte(id), data)
	})
	return err
}