Rate limiting with Redis cache

Rate Limiting - What is Rate Limiting? | Redis

Building a rate limiter with Redis is easy because of two commands INCR and EXPIRE. The basic concept is that you want to limit requests to a particular service in a given time period. Let’s say we have a service that has users identified by an API key. This service states that it is limited to 20 requests in any given minute.

peterkhayes/rolling-rate-limiter: Rate limiter for node.js that supports a rolling window, either in-memory or backed by redis @GitHub

rolling-rate-limiter - npm

This is an implementation of a rate limiter in node.js that allows for rate limiting with a rolling window. It can use either in-memory storage or Redis as a backend. If Redis is used, multiple rate limiters can share one instance with different namespaces, and multiple processes can share rate limiter state safely.

Understanding and implementing rate limiting in Node.js - LogRocket Blog

Rate limiting with Redis — Ramp Engineering
Python solution

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China indicators

China's weakening economy in two Indicators : Planet Money : NPR

What decreased tourism and slower spending reveal about China's economy : The Indicator from Planet Money : NPR

troubling stats

travel to China with travel agencies is less than 52K in first Q of this year, compared to 3M least year (99% drop!)

20% of young people (in 20's) are unemployed