# 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/h7sm37q
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電商平臺中訂單未支付過期如何實現自動關單？**
一、場景1.1 場景描述在日常的開發工作中，我們頻繁遭遇諸如外賣訂單超過 30 分鐘未支付則自動取消，或用戶註冊成功後 15 分鐘發送短信通知等業務場景。這些，正是延時任務處理的典型應用。在電商、支付等系統中，常見的做法是首先創建訂單（或支付單），然後給予用戶一定的支付期限。若用戶未能在規定時間內完成支付，系統則需自動取消先前的訂單（或支付單）。類似場景不勝枚舉，如到期自動確認收貨、超時自動發起退 ⌘ Read more