OptionalurlBigchainDB API root, e.g. 'http://localhost:9984/api/v1/'.
OptionalheadersExtra headers (e.g. an app_id/app_key for hosted BigchainDB).
OptionalkeypairKeypair used to sign CREATE transactions in append. Required to write.
OptionalclientA pre-built Connection to use instead of the lazy require.
OptionaltransactionA pre-built Transaction factory (injected in tests alongside client).
Connection options for
BigchaindbStore.