# 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/katp7xq
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Go 併發控制：singleflight 詳解**
singleflight 是 Go 官方擴展庫 x 中提供的擴展併發原語，能夠將多個併發請求合併爲一個，降低服務端壓力。本文就來介紹下它的用法和實現原理。請求合併singleflight 主要用於抑制重複的併發調用，從而避免對同一資源進行重複操作，提升系統性能。比如，當我們有多個 goroutine 併發調用一個同一個函數時，singleflight 能夠實現只讓一個 goroutine 發起調用 ⌘ Read more