# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/44pbwiq
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圖解支付系統訂單號設計與最佳實踐**
大家好，我是隱墨星辰，深耕境內 / 跨境支付架構設計十餘年。本文主要講清楚支付系統訂單號（或業務 ID）各種設計方案對比，各子域的訂單號（或業務 ID）爲什麼要統一規範，以及最佳實踐。最後還會簡單分析微信支付和支付寶的對客訂單號的組成差異。假如你也好奇爲什麼有了數據庫自增 ID 外還需要業務 ID，或者想了解如何在業務 ID 中編織進業務信息比如業務系統，數據版本，分庫分表位等，值得花幾分鐘瞭解一 ⌘ Read more