手把手搭一套前端监控采集 SDK

The HTTP Content-Digest request and response header provides a digest calculated using a hashing algorithm applied to the message content. A recipient can use the Content-Digest to validate the HTTP message content for integrity purposes.

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前言 结语 随着前端的发展和被重视，慢慢的行业内对于前端监控系统的重视程度也在增加。这里不对为什么需要监控再做解释。那我们先直接说说需求。 对于中小型公司来说，可以直接使用三方的监控，比如自己搭建一套免费的sentry就可以捕获异常和上报事件，或者使用阿里云的ARMS，功能比较全面也并不会太贵。类似

To test the latest developer features of Firefox, install Firefox Developer Edition Firefox 47 was released on June 6, 2016. This article lists key changes that are useful not only for web developers, but also Firefox and Gecko developers as well as add-on developers.

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概要 本文的主要目的是介绍一种可扩展性较好的SDK架构，让后续业务迭代的代码更清晰明朗。这种架构已经在开源监控SDK:​[mitojs](https://github.com/mitojs/mitojs)​实践，有兴趣的小伙伴可以去瞅瞅~ 来到正文，本文分成四个部分 背景 SDK的架构与迭代 结尾

Firefox 21 was released on May 14, 2013. This article lists key changes that are useful not only for web developers, but also Firefox and Gecko developers as well as add-on developers.

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大厂技术 高级前端Node进阶 点击上方 程序员成长指北，关注公众号 回复1，加入高级Node交流群 一个完整的前端监控平台包括三个部分：数据采集与上报、数据整理和存储、数据展示。 本文要讲的就是其中的第一个环节——数据采集与上报。下图是本文要讲述内容的大纲，大家可以先大致了解一下： 仅看理论知识