# 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/55tubuq
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寫給 go 開發者的 gRPC 教程 - 攔截器**
gRPC的攔截器和其他框架的攔截器（也稱 middleware）作用是一樣的。利用攔截器我們可以在不侵入業務邏輯的前提下修改或者記錄服務端或客戶端的請求與響應，利用攔截器我們可以實現諸如日誌記錄、權限認證、限流等諸多功能上一篇提到gRPC的通信模式分爲unary和streaming幾種模式，攔截器也分爲兩種：unary interceptors和streaming interceptors ，兩 ⌘ Read more