# 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/zggkibq
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如何設計一個秒殺系統？**
假如你是一名架構師，你會如何設計一個秒殺系統？這篇文章，我們就來聊一聊。什麼是秒殺？所謂秒殺，就是在同一個時刻有大量的客戶端請求爭搶同一個商品並完成交易的過程，瞬時會產生大量的併發讀和併發寫。秒殺系統本質上就是一個滿足高併發、高性能和高可用的分佈式系統，下面給出一張下單交互概要圖：秒殺系統的特點高性能秒殺涉及大量的併發讀和併發寫，因此秒系統必須能支持高併發訪問，而且 RT(響應時間) 需要在一定的 ⌘ Read more