# 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/rhytcea
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go-zero 的自適應熔斷器**
熔斷和限流還不太一樣，限流是控制請求速率，只要還能承受，那麼都會處理，但熔斷不是。在一條調用鏈上，如果發現某個服務異常，比如響應超時。那麼調用者爲了避免過多請求導致資源消耗過大，最終引發系統雪崩，會直接返回錯誤，而不是瘋狂調用這個服務。本篇文章會介紹主流熔斷器的工作原理，並且會藉助 go-zero 源碼，分析 googleBreaker 是如何通過滑動窗口來統計流量，並且最終執行熔斷的。工作原理- ⌘ Read more