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

package core

import "math/big"

type Blockchain interface {
	ContractDataFetcher
	GetBlockByNumber(blockNumber int64) Block
	GetLogs(contract Contract, startingBlockNumber *big.Int, endingBlockNumber *big.Int) ([]Log, error)
	LastBlock() *big.Int
	Node() Node
}

type ContractDataFetcher interface {
	FetchContractData(abiJSON string, address string, method string, methodArg interface{}, result interface{}, blockNumber int64) 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 {`
Remove unused contract methods 2018-03-12 19:09:20 +00:00			`ContractDataFetcher`
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`
Handle events - Adds interfaces for developers to build handlers that update data in response to log events - Resolves #29 2018-02-13 16:31:57 +00:00			`GetLogs(contract Contract, startingBlockNumber big.Int, endingBlockNumber big.Int) ([]Log, error)`
Block categorization (#110) * Add block categorization (is_final=) * Add godo task for vulcanizeDB (Example of how everything could work together) * Add unique constraint on block_number and node * Add index on block_id for transactions_table * Add node_id index on blocks table * Sort transactions returned from FindBlock by tx_hash * lowercase tx_to, tx_from like etherscan 2017-12-20 20:06:22 +00:00			`LastBlock() *big.Int`
Update BlockChain to record NodeInfo (#95) 2017-12-07 19:32:16 +00:00			`Node() Node`
Handle events - Adds interfaces for developers to build handlers that update data in response to log events - Resolves #29 2018-02-13 16:31:57 +00:00			`}`

			`type ContractDataFetcher interface {`
			`FetchContractData(abiJSON string, address string, method string, methodArg interface{}, result interface{}, blockNumber int64) 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			`}`