How Does a Client App Communicate with Hyperledger Fabric Chaincode

question 16

Multiple Choice

How does a client app communicate with Hyperledger fabric chaincode (Smart Contracts) ?

• A) The app uses an SDK which invokes functionality on the chaincode which then announces the transaction to any peers required to endorse the transaction
• B) The app uses Hyperledger Composer to communicate with CouchDB which in turn invokes chaincode functionality
• C) Client apps don't communicate with Hyperledger fabric directly, they must use Hyperledger Composer for the transmission
• D) The app points to a node's IP address, then calls an invoke function on the chaincode address to start the write process

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