ipld-eth-server/pkg/core/blockchain.go

package core

import "math/big"

type Blockchain interface {
	GetBlockByNumber(blockNumber int64) Block
	SubscribeToBlocks(blocks chan Block)
	StartListening()
	StopListening()
	GetAttributes(watchedContract WatchedContract) (ContractAttributes, error)
	GetAttribute(watchedContract WatchedContract, attributeName string, blockNumber *big.Int) (interface{}, error)
}
Start introducing domain concepts * Potential observers include a logger and/or an observer that writes to the DB 2017-10-23 15:56:29 +00:00			`package core`

Contract hist (#84) Add ability to query contract historical state 2017-12-04 18:54:33 +00:00			`import "math/big"`

Start introducing domain concepts * Potential observers include a logger and/or an observer that writes to the DB 2017-10-23 15:56:29 +00:00			`type Blockchain interface {`
Add ability to populate missing blocks * The command populates up to the highest known block number * The anticipated use case is that the listener will be running in parallel to the populateBlocks command * This will mean that the listener is responsible for picking up new blocks, and the populateBlocks command is reposible for historical blocks * Reformat SQL statements 2017-11-06 20:36:12 +00:00			`GetBlockByNumber(blockNumber int64) Block`
Refactor to use listener * This removes some duplication between the fake blockchain and geth blockchain. * This pulls the observers into the blockchain listener 2017-11-02 11:41:24 +00:00			`SubscribeToBlocks(blocks chan Block)`
			`StartListening()`
Close subscription in integration test * This was causing issues in future tests, since the subscription was causing blocks and transactions to be added to the DB 2017-11-03 13:54:32 +00:00			`StopListening()`
Update Blockchain interface to use WatchedContract instead of Contract 2017-12-04 22:35:41 +00:00			`GetAttributes(watchedContract WatchedContract) (ContractAttributes, error)`
			`GetAttribute(watchedContract WatchedContract, attributeName string, blockNumber *big.Int) (interface{}, error)`
Start introducing domain concepts * Potential observers include a logger and/or an observer that writes to the DB 2017-10-23 15:56:29 +00:00			`}`