cscc

Documentation

Overview

Package cscc chaincode configer provides functions to manage configuration transactions as the network is being reconfigured. The configuration transactions arrive from the ordering service to the committer who calls this chaincode. The chaincode also provides peer configuration services such as joining a chain or getting configuration data.

Index

• Constants
• type PeerConfiger
  • func (e *PeerConfiger) Init(stub shim.ChaincodeStubInterface) pb.Response
  • func (e *PeerConfiger) Invoke(stub shim.ChaincodeStubInterface) pb.Response

Constants

const (
	JoinChain         string = "JoinChain"
	UpdateConfigBlock string = "UpdateConfigBlock"
	GetConfigBlock    string = "GetConfigBlock"
)

These are function names from Invoke first parameter

Types

type PeerConfiger

type PeerConfiger struct {
}

PeerConfiger implements the configuration handler for the peer. For every configuration transaction coming in from the ordering service, the committer calls this system chaincode to process the transaction.

func (*PeerConfiger) Init

func (e *PeerConfiger) Init(stub shim.ChaincodeStubInterface) pb.Response

Init is called once per chain when the chain is created. This allows the chaincode to initialize any variables on the ledger prior to any transaction execution on the chain.

func (*PeerConfiger) Invoke

func (e *PeerConfiger) Invoke(stub shim.ChaincodeStubInterface) pb.Response

Invoke is called for the following: # to process joining a chain (called by app as a transaction proposal) # to get the current configuration block (called by app) # to update the configuration block (called by commmitter) Peer calls this function with 2 arguments: # args[0] is the function name, which must be JoinChain, GetConfigBlock or UpdateConfigBlock # args[1] is a configuration Block if args[0] is JoinChain or UpdateConfigBlock; otherwise it is the chain id TODO: Improve the scc interface to avoid marshal/unmarshal args