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Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,420 posts.

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2009
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What webhooks are and why you should care

Webhooks are user-defined HTTP callbacks. Here’s a common example: You go to github. There’s a textbox for their code post webhook. You drop in a URL. Now when you post your code to github, github will HTTP POST to your chosen URL with details about the code post. There is no simpler way to allow open ended…