https://github.com/teamhide/python-saga-pattern-example

Python SAGA Pattern Example
https://github.com/teamhide/python-saga-pattern-example

Last synced: 11 months ago
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Python SAGA Pattern Example

• Host: GitHub
• URL: https://github.com/teamhide/python-saga-pattern-example
• Owner: teamhide
• Created: 2020-04-13T10:36:57.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-04-25T06:01:59.000Z (about 2 years ago)
• Last Synced: 2025-05-06T18:47:33.859Z (about 1 year ago)
• Language: Python
• Size: 228 KB
• Stars: 55
• Watchers: 1
• Forks: 9
• Open Issues: 4
• Metadata Files:
  • Readme: README.md

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README

          
# Python SAGA Pattern Example

Implemented SAGA Pattern through python for distributed transaction.

- FastAPI

- RabbitMQ

There is three microsevices.

- Order

- Stock

- Delivery

**Case of success**

![ex_screenshot](./success.png)

Each service is listening to a specific queue, as shown above.

To briefly explain the flow,

1. **User** - Order product through `/order/{item_id}`

2. **Order** - Execute local transaction

3. **Order** - Produce event to `ORDER_CREATED`

4. **Stock** - Consume `ORDER_CREATED` and if got some, execute local transaction

5. **Stock** - Produce event to `STOCK_SUCCESS`

6. **DELIVERY** - Consume `STOCK_SUCCESS` and if got some, execute local transaction

7. **DELIVERY** - Produce event to `DELIVERY_SUCCESS`

8. **Order** - Consume `DELIVERY_SUCCESS`

9. **Order** - Change order status to `complete` and distributed transaction is end