public ResponseEntity invoke()

in src/main/java/com/lambdajavablockchain/controller/ApiController.java [110:141]
26 lines of code
4 McCabe index (conditional complexity)

    public ResponseEntity<?> invoke(@RequestBody @Valid InvokeRequest invokeRequest) {
        try {
            log.debug("Invoking chaincode with payload:" + invokeRequest.toString());

            service.setupClient();
            // First retrieve LambdaUser's credentials and set user context
            service.setUser(AMBConfig.LAMBDAUSER);
            service.initChannel();

            // build arguments list required by the chaincode
            String[] arguments = invokeRequest.getArgList().stream().toArray(String[]::new);

            service.invokeChaincode(service.getClient(), service.getChannel(),
                    invokeRequest.getChaincodeName(),
                    invokeRequest.getFunctionName(),
                    arguments);

            return new ResponseEntity<>("Invoke successful", HttpStatus.ACCEPTED);
        } catch (EnrollmentNotFoundException | AppException e){
            log.error("Error while invoking chaincode - " + e.getMessage());
            return new ResponseEntity<>("Error while invoking chaincode - " + e.getMessage(), HttpStatus.BAD_REQUEST);
        } catch (ManagedBlockchainServiceException e) {
            log.error("Error while invoking chaincode, ManagedBlockchainService startup failed - " + e.getMessage());
            return new ResponseEntity<>("Error while invoking chaincode, ManagedBlockchainService startup failed - "
                    + e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
        } catch (Exception e) {
            log.error("Error while invoking - function:" + invokeRequest.getFunctionName() +
                                              "chaincode:" + invokeRequest.getFunctionName());
            e.printStackTrace();
            return new ResponseEntity<>("Error while invoking chaincode", HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }