Relay Cluster Common Library

Relay library contains common codes of all micro services like relay-cluster and extractor. Also other system can use those modules too. The module list in the library is :

• broadcast - Order broadcast module, contains ipfs and matrix.
• cache - The wrapped redis cache.
• cloudwatch - Aws cloudwatch client, can report metric data and system alarm infomation.
• crypto - The wrapped ethereum crypto module, has verifySign, sign, generateHash methods.
• dao - The common database access layer, only support mysql now.
• eth - The ethereum network access client, includes lot of useful class like eth accessor ABI gasPriceEvaluator
• eventemitter - A in-process event driven programming tool.
• extractor - The motan rpc interface of extractor microService.
• kafka - The wrapped Kafka message producer/comsumer client.
• log - The common log module with loopring log config.
• marketcap - The coinmarketcap data collector.
• marketutil - Loopring market and token common util module, contains meta data of tokens and market.
• motan - The wrapped motan rpc client.
• sns - The aws sns notify client.
• types - Contains all common model definition in Loopring relay microService.
• zklock - A distributed lock implement by zookeeper.