Cosmos SDK

Main components

• baseapp: A boilerplate implementation of the ABCI. (ABCI method, route)
• MultiStore: Multiple KVStores.
  • 기본적인 저장소는 KV이며, 추가로 Commit, Cache가 있음.
• Keeper(each module keeps an access control list for other modules), codec, module manager

ABCI

상태 전이: Application이라고 말함.

• Application BlockChain Interface: Interface between state machine and consensus engine
• messages
  • CheckTx is used to protect the mempool of full-nodes against spam transactions. AnteHandler is used to execute a series of validation steps such as checking for sufficient fees and validating the signatures.
  • DeliverTx: each transaction in the block is passed to the application via DeliverTx.
  • BeginBlock/EndBlock: whether the block contains transactions or not.

Tendermint

• Tendermint: 합의 엔진임.

Tendermint Core

• Consensus Engine: BFT consensus (fork: cometBFT)
• P2P networking

Cosmos

• Cosmos SDK: ABCI application