# 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/74wzx5a
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Rust 中的分佈式跟蹤：OpenTelemetry**
在這篇文章中，我們先簡單介紹一下 OpenTelemetry，然後，再來編寫一個在 Rust 中使用 OpenTelemetry 的示例。OpenTelemetry，也被簡稱爲 OTel，是一個開源可觀察性框架，用於檢測、生成、收集和導出測量數據，如跟蹤、度量、日誌。OTEL 爲你提供了一套獨立的 api、sdk、集成和收集器服務。如圖：下面，讓我們來看一下 OpenTelemetry 的關鍵概念 ⌘ Read more