# 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/ltmxksq
Go 語言 context 都能做什麼?**
很多 Go 項目的源碼,在讀的過程中會發現一個很常見的參數 ctx,而且基本都是作爲函數的第一個參數。爲什麼要這麼寫呢?這個參數到底有什麼用呢?帶着這樣的疑問,我研究了這個參數背後的故事。開局一張圖:核心是 Context 接口:// A Context carries a deadline, cancelation signal, and request-scoped values// acro ⌘ Read more