Can a chaincode interact with other chaincode?

Question

I am trying to write an application with hyper-ledger and I was looking for a way to communicate with chain-code from another chain-code. Is that possible in hyper-ledger?

I know its possible in etherum to communicate with other smart contracts but is the same possible in hyperledger. I could not find any related links related to same. Any suggestions on how to approach this will be really helpful.

Answer 1

Chaincode could interact with other chaincode by means of leveraging existing API of ChaincodeStubInterface, e.g.:

•  InvokeChaincode locally calls the specified chaincode `Invoke` using the
•  same transaction context; that is, chaincode calling chaincode doesn't
•  create a new transaction message.
•  If the called chaincode is on the same channel, it simply adds the called
•  chaincode read set and write set to the calling transaction.
• If the called chaincode is on a different channel,
•  only the Response is returned to the calling chaincode; any PutState calls
• from the called chaincode will not have any effect on the ledger; that is,
•  the called chaincode on a different channel will not have its read set
•  and write set applied to the transaction. Only the calling chaincode's
•  read set and write set will be applied to the transaction. Effectively
•  the called chaincode on a different channel is a `Query`, which does not
•  participate in state validation checks in subsequent commit phase.
•  If `channel` is empty, the caller's channel is assumed.
• InvokeChaincode(chaincodeName string, args [][]byte, channel string) pb.Response