TechPrimers / ratelimiter-example

Example repo for Rate Limiter using Spring Cloud Gateway

Rate Limiter using Spring Cloud Gateway

Architecture

Code Changes

The following config enables rate limiters and routes the traffic to backend instance which is a dropwizard app. This app runs on 8082 port.

spring:
  redis:
    host: localhost
    port: 6379
  application:
    name: ratelimiter-example
  cloud:
    gateway:
      routes:
        - id: route1
          uri: http://localhost:8080/hello
          predicates:
            - Path=/hello
          filters:
            - name: RequestRateLimiter
              args:
                redis-rate-limiter.replenishRate: 20
                redis-rate-limiter.burstCapacity: 40
                redis-rate-limiter.requestedTokens: 1