Package boltdbpool implements a pool container for BoltDB github.com/coreos/bbolt databases. Pool elements called connections keep reference counts for each database to close it when it when the count is 0. Database is reused or opened based on database file path. Closing the database must not be done directly, instead Connection.Close() method should be used. Database is removed form the pool and closed by the goroutine in the background in respect to reference count and delay in time if it is specified. Example: