# 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/6x232ea
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圖解支付系統的交易訂單狀態機設計**
大家好，我是隱墨星辰，今天和大家聊聊交易單據狀態機的設計與核心代碼實現。假如你做的是支付、電商等這類交易系統，但沒有聽過狀態機，或者你聽過但沒有寫過，又或者你是使用 if else 或 switch case 來寫交易訂單的狀態推進，建議花點時間看看，一定會有不一樣的收穫。如果你是產品經理，可以考慮推薦給你們的研發同學，說不定能提升系統的健壯性。這篇文章主要講清楚：清楚什麼是狀態機，簡潔的狀態機對 ⌘ Read more