chaincode_stub_interface.go

type ChaincodeStubInterface interface {
    // GetArgs returns the arguments intended for the chaincode Init and Invoke
    GetArgs() [][]byte
    // InvokeChaincode locally calls the specified chaincode
    InvokeChaincode(chaincodeName string, args [][]byte, channel string) pb.Response
    // GetState returns the value of the specified `key` from the ledger. 
    GetState(key string) ([]byte, error)
    // PutState puts the specified `key` and `value` into the transaction's  writeset as a data-write proposal. 
    PutState(key string, value []byte) error
    // DelState records the specified `key` to be deleted in the writeset of the transaction proposal. 
    DelState(key string) error
    // GetStateByRange returns a range iterator over a set of keys in the ledger. 
    GetStateByRange(startKey, endKey string) (StateQueryIteratorInterface, error)
    // CreateCompositeKey combines the given `attributes` to form a composite key. 
    CreateCompositeKey(objectType string, attributes []string) (string, error)
  
    // GetCreator returns `SignatureHeader.Creator` (e.g. an identity of the agent (or user) submitting the transaction.
    GetCreator() ([]byte, error)
    
    // and many more methods
}