pcs-registry-4.go

func (r registry) create(stub shim.ChaincodeStubInterface, item interface{}) (string, error) {
	idStr, err := newID(stub, r.typeStr)
	if err != nil {
		return "", errors.New("internal error generating index key")
	}
	ck, err := getShipmentKey(stub, idStr)
	if err != nil {
		return "", errors.New("internal error generating composite key")
	}

  	data, err := json.Marshal(&item)
	if err != nil {
		return "", errors.New("internal JSON marshal error")
	}
	err = stub.PutState(ck, []byte(data))
	if err != nil {
		return "", errors.New("internal error writing world state")
	}

	return ck, nil
}