调节/限速红宝石机械化 [英] Regulating / rate limiting ruby mechanize

问题描述

我需要调整Mechanize实例与API的连接频率(每2秒一次，因此将连接限制为一个或更多)

I need to regulate how often a Mechanize instance connects with an API (once every 2 seconds, so limit connections to that or more)

所以这个:

instance.pre_connect_hooks << Proc.new { sleep 2 }

我曾以为这会起作用，但现在该类中的每个方法都会休眠2秒钟，就像机械化实例被触摸并告诉其保持2秒钟一样.我将尝试使用post connect钩子，但是很明显，我需要更详细的说明，但是此时我不知道要做什么.

I had thought this would work, and it sort of does BUT now every method in that class sleeps for 2 seconds, as if the mechanize instance is touched and told to hold 2 seconds. I'm going to try a post connect hook, but it is obvious I need something a bit more elaborate, but what I don't know what at this point.

代码是更多的解释，因此如果您有兴趣，请关注以下内容: https://github.com/blueblank/reddit_modbot ，否则我的问题是如何在API指定的特定时间范围内有效且有效地将Mechanize实例的速率限制在一定的范围内(如果超出限制，将导致请求和禁令被丢弃).另外，我猜想我还需要更好地将机械化实例集成到我的类中，对此上的所有指针也应如此.

Code is more explanation so if you are interested following along: https://github.com/blueblank/reddit_modbot, otherwise my question concerns how to efficiently and effectively rate limit a Mechanize instance to within a specific time frame specified by an API (where overstepping that limit results in dropped requests and bans). Also, I'm guessing I need to better integrate a mechanize instance to my class as well, any pointers on that appreciated as well.

推荐答案

在每个连接上都会调用连接前和连接后钩子，因此，如果存在某种重定向，它可能会为一个请求触发多次.尝试一下history_added，它只会被调用一次:

Pre and post connect hooks are called on every connect, so if there is some redirection it could trigger many times for one request. Try history_added which only gets called once:

instance.history_added = Proc.new {sleep 2}

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