# 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/k4cvy3a
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爲什麼說 MQTT 適用於大規模物聯網場景**
一、MQTT 是什麼1.1、MQTT 基本概念 MQTT（Message Queuing Telemetry Transport，消息隊列遙測傳輸協議），是一種基於發佈 / 訂閱（publish/subscribe）模式的 "輕量級" 通訊協議，該協議構建於 TCP/IP 協議上，由 IBM 在 1999 年發佈。MQTT 最大優點在於，可以以極少的代碼和有限的帶寬，爲連接遠程設備提供實時可靠的 ⌘ Read more