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

package core

import "math/big"

type BlockChain interface {
	ContractDataFetcher
	GetBlockByNumber(blockNumber int64) (Block, error)
	GetHeaderByNumber(blockNumber int64) (Header, error)
	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"`

Consolidate test doubles - Migrate various mocks of core namespaces to shared version in `fakes` pkg - Err on the side of making test doubles less sophisticated - Don't pull over mocks of namespaces that are only used in example code 2018-07-20 16:37:46 +00:00			`type BlockChain interface {`
Remove unused contract methods 2018-03-12 19:09:20 +00:00			`ContractDataFetcher`
Get transactions (#45) * Make transactions requests in parallel * Update transaction error handling 2018-03-27 21:06:12 +00:00			`GetBlockByNumber(blockNumber int64) (Block, error)`
Add light sync command - Only syncs block headers (excludes block bodies, transactions, receipts, and logs) - Modifies validation window to include the most recent block - Isolates validation window to the variable defined in the cmd directory (blocks have a separate variable defined in the block_repository for determining when to set a block as final) 2018-07-17 21:23:07 +00:00			`GetHeaderByNumber(blockNumber int64) (Header, error)`
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			`}`