---
title: "Creating sequence action"
slug: "cloudfunctions-example01"
tags: ["Cloud Functions", "Cloud Functions examples"]
updated: 2026-09-17T09:17:40Z
published: 2026-09-17T09:17:40Z
canonical: "guide.ncloud-docs.com/cloudfunctions-example01"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Creating sequence action

Available in Classic and VPC

A few examples that may help with understanding and utilizing sequence actions are introduced. Example code is as follows.

- Example 1

```
def main(user_parameter):
    # Process your business logic
    allow_users_id = {1, 2, 3}
    is_allowed = False
    if 'userId' in user_parameter and user_parameter['userId'] in allow_users_id:
        is_allowed = True

    # Result JSON
    result = dict()

    # Success
    if is_allowed:
        result['resCode'] = 0

    # Failure
    else:
        result['resCode'] = -1
        result['errMessage'] = 'Error'

    # Return result JSON
    return result
```
- Example 2

```
def main(pre_action_result):
    if 'resCode' in pre_action_result and pre_action_result['resCode'] == 0:
        on_success(pre_action_result)
    else:
        on_failure(pre_action_result)

def on_success(pre_action_result):
    print('Success')

def on_failure(pre_action_result):
    print('Failure')
    print(pre_action_result['errMessage'])
```