August 2017
Intermediate to advanced
278 pages
8h 53m
English
Content preview from NGINX Cookbook
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Simple hit counter with a Redis backend
One simple example to show the ease of extendibility of OpenResty is with a basic hit counter. Taking it a step further, we're going to use a Redis backend so that the counter is both persistent and could also be part of a clustered deployment to give a combined hit counter. This will also introduce you to the basics of how OpenResty can directly talk to many other services outside of the basic proxying of connections or via FPM.
In a deployment where every bit of optimization possible is critical, this could also be used to retrieve cached data direct from Redis, allowing the application servers to simply write cache data to Redis in an asynchronized manner.
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